CITICORP, SC 13D/A, 1998-01-20

CITICORP
SC 13D/A, 1998-01-20
NATIONAL COMMERCIAL BANKS

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<PAGE>

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D/A
(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO
13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(a)

(Amendment No. 2)*

SYBRON CHEMICALS INC.
- --------------------------------------------------------------------------------
(Name of Issuer)

COMMON STOCK, $.01 PAR VALUE
- --------------------------------------------------------------------------------
(Title of Class of Securities)

870903 10 1
--------------------------------
(CUSIP Number)

DECHERT PRICE & RHOADS
4000 Bell Atlantic Tower
1717 Arch Street
Philadelphia, PA 19103
Attention: G.Daniel O'Donnell, Esquire
(215) 994-2762
- --------------------------------------------------------------------------------

(Name, Address and Telephone Number of Person Authorized to Receive Notices and
Communications)

January 19, 1998
----------------------------------------
(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G
to report the acquisition which is the subject of this Schedule 13D, and is
filing this schedule because of Rule 13d-1(b)(3) or (4), check the following box
/X/.

Note: Six copies of this Statement, including all exhibits, should be
filed with the Commission. See Rule 13d-1(a) for other parties to whom copies
are to be sent.

*The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class of
securities, and for any subsequent amendment containing information which would
alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not
be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).

-1-
<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 2 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

399 VENTURE PARTNERS, INC.

I.R.S. ID NO. 13-3413727
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*
BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS
REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 2,025,000
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

2,025,000
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,025,000
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES* / /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

35.7%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

CO
- --------------------------------------------------------------------------------

-2-
<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 3 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

Citibank, N.A.

I.R.S. ID NO. 13-5266470
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY
- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS
REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) /X/
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

2,025,000
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

399 Venture Partners, Inc., a wholly-owned subsidiary of Citibank,
N.A., beneficially and directly owns the 2,025,000 shares of referred to herein.
Citibank, N.A., is a wholly-owned subsidiary of Citicorp.
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES*
/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

35.7%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

HC
- --------------------------------------------------------------------------------

-3-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 4 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

CITICORP

I.R.S. ID NO. 13-2614988
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) /X/
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

2,025,000
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

399 Venture Partners, Inc., a wholly-owned subsidiary of Citibank,
N.A., beneficially and directly owns the 2,025,000 shares referred to herein.
Citibank, N.A., is a wholly-owned subsidiary of Citicorp.
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES*
/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

35.7%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

HC
- --------------------------------------------------------------------------------

-4-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 5 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

RICHARD M. KLEIN
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 470,551
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

470,551
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

470,551
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES* / /

- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

8.3%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-5-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 6 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

JOHN H. SCHROEDER
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 67,482
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

67,482
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

67,482
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES*
/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

1.2%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-6-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 7 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

PETER DE BRUIJN
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

Netherlands
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 8,745
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

8,745
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

8,745
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES* / /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

0.2%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-7-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 8 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

ALBERT L. EILENDER
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 14,262
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

14,262
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

14,262
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES* / /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

0.3%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-8-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 9 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

JOE J. BELCHER
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 18,863
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

18,863
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

18,863
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES* / /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

0.3%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-9-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 10 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

STEPHEN R. ADLER
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 17,453
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

17,453
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

17,453
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES* / /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

0.3%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-10-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 11 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

JOSE M. RODRIGUEZ
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

Great Britain, Mexico
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 15,271
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

15,271
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

15,271

- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES*
/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

0.3%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-11-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 12 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

GERALD DELANEY
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 14,616
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

14,616
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

14,616

0.3%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-12-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 13 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

DWIGHT TAMAKI
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 18,833
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

18,833
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

18,833
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES* / /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

0.3%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-13-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 14 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

ROBERT LOGIN
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 14,184
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

14,184
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

14,184
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES* / /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

0.2%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-14-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 15 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

AARD VANDENBERG
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

Netherlands
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 3,299
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

3,299
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

3,299
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES* / /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

Less than 0.1%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-15-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 16 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

HANS HUISKES
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

Netherlands
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 3,993
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

3,993
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

3,993
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES* / /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

Less than 0.1%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-16-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 17 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

HANS BRUGGNWIRTH
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

Netherlands
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 1,788
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

1,788
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,788

Less than 0.1%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-17-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 18 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

FRANK ZUNINO
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 3,229
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

3,229
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

3,229

Less than 0.1%

- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-18-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 19 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

JAMES T. COMFORT, as general partner of a certain partnership.
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY None
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
27,366
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

None
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

27,366
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

27,366

0.5%

- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-19-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 20 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

NATHALIE C. URRY, as general partner of two partnerships.
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY None
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
47,866
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

None
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

47,866
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

47,866

0.8%

- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-20-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 21 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

WILLIAM T. COMFORT, III, as general partner of two partnerships.
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY None
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
47,866
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

None
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

47,866
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

47,866

0.8%

- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-21-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 22 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

STUYVESANT P. COMFORT, individually and as partner in two partnerships.
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 3,000
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
47,866
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

3,000
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

47,866
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

50,866

0.9%

- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-22-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 23 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

SHAWNEE PARTNERSHIP
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

Oklahoma
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 27,366
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

27,366
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

27,366

0.5%

- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

GP
- --------------------------------------------------------------------------------

-23-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 24 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

63 BR PARTNERSHIP
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

Oklahoma
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 20,500
OWNED BY -----------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

20,500
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

20,500
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES* / /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

0.4%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

GP
- --------------------------------------------------------------------------------

-24-
<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 25 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

RICHARD M. CASHIN

- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 117,310
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

117,310
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

117,310

- --------------------------------------------------------------------------------

12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES*
/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

2.1%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-25-
<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 26 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

MICHAEL A. DELANEY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 1,800
OWNED BY -----------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

1,800
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

1,800
- --------------------------------------------------------------------------------

Less than 0.1%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-26-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 27 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

A. RICHARD BLAIR
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 15,000
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

15,000
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

15,000
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES*
/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

0.3%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-27-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 28 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

DELORES D. BLAIR
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

United States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 2,000
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

2,000
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,000
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES*
/ /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

Less than 0.1%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-28-

<PAGE>

SCHEDULE 13D
- --------------------------------------------------------------------------------
CUSIP NO. 870903 10 1 Page 29 of 50 Pages
- --------------------------------------------------------------------------------
1 NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

STEPHEN W. KLEIN
- --------------------------------------------------------------------------------
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) /X/
(b) / /
- --------------------------------------------------------------------------------
3 SEC USE ONLY

- --------------------------------------------------------------------------------
4 SOURCE OF FUNDS*

BK, OO
- --------------------------------------------------------------------------------
5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS
IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) / /
- --------------------------------------------------------------------------------
6 CITIZENSHIP OR PLACE OF ORGANIZATION

Unites States
- --------------------------------------------------------------------------------
NUMBER OF 7 SOLE VOTING POWER
SHARES
BENEFICIALLY 2,000
OWNED BY -----------------------------------------------------------
EACH
REPORTING 8 SHARED VOTING POWER
PERSON WITH
None
-----------------------------------------------------------
9 SOLE DISPOSITIVE POWER

2,000
-----------------------------------------------------------
10 SHARED DISPOSITIVE POWER

None
- --------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

2,000
- --------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES* / /
- --------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

Less than 0.1%
- --------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON*

IN
- --------------------------------------------------------------------------------

-29-

<PAGE>

SCHEDULE 13D

This Amendment No. 2 (the "Amendment") amends the Statement on
Schedule 13D, as amended by the Amendment No. 1 thereto (the "Statement"), filed
by certain Reporting Persons (the "Original Reporting Persons") pursuant to Rule
13d-1 of the Securities and Exchange Act of 1934, as amended (the "Exchange
Act") to reflect the formation of a group by such Reporting Persons with the
purpose of effecting a transaction or transactions in which certain of the
Reporting Persons, through Sybron Acquisition Corp., a Delaware corporation
("Acquisition") or another entity to be formed by them, would acquire all of the
issued and outstanding common stock of Sybron Chemicals Inc. ("Sybron"), par
value $.01 per share (individually, a "Share" and collectively, the "Shares"),
not presently owned by them. This Amendment amends and restates the Statement in
its entirety. This Amendment has been filed to reflect the inclusion in the
group of additional Reporting Persons, who are employees of Sybron, 399 Venture
or an affiliate of 399 Venture or persons related to such employees, and to
update the Statement in light of certain recent events. The Reporting Persons
beneficially own, pursuant to Rule 13d-3, in the aggregate 2,886,545 Shares, as
set forth in Item 5 below, representing approximately 50.2% of the class of
securities to which this Statement relates.

ITEM 1. SECURITY AND ISSUER.

This Statement relates to shares of the common stock, par value $.01
per share, of Sybron, a Delaware corporation, with its principal executive
offices at Birmingham Road, Birmingham, New Jersey 08011.

ITEM 2. IDENTITY AND BACKGROUND.

(a) This Statement is being filed jointly pursuant to Rule 13d-
1(f)(1) ("Rule 13d-1(f)(1)") promulgated under the Securities Exchange Act of
1934, as amended (the "Exchange Act"), by: (1) 399 Venture Partners, Inc., a
Delaware corporation ("399 Venture"), formerly known as Citicorp Investments
Inc.; (2) Citibank, N.A., a national banking association ("Citibank"); (3)
Citicorp, a Delaware corporation ("Citicorp"); (4) Richard M. Klein; (5) John H.
Schroeder; (6) Peter de Bruijn; (7) Albert L. Eilender; (8) Joe. J. Belcher; (9)
Stephen R. Adler; (10) Jose M. Rodriguez; (11) Gerald DeLaney; (12) Dwight
Tamaki; (13) Robert Login; (14) Aard Vandenberg; (15) Hans Huiskes; (16) Hans
Bruggnwirth; (17) Frank Zunino; (18) James T. Comfort; (19) Nathalie C. Urry;
(20) William T. Comfort, III; (21) Stuyvesant P. Comfort; (22) Shawnee
Partnership, an Oklahoma partnership ("Shawnee"); (23) 63 BR Partnership, an
Oklahoma partnership ("63 BR"); (24) Richard M. Cashin; (25) Michael A. Delaney;
(26) A. Richard Blair; (27) Delores D. Blair and (28) Stephen W. Klein
(hereinafter, each such person or entity may be referred to individually as a
"Reporting Person" and collectively as the "Reporting Persons"). This Statement
relates to the formation of a group by the Reporting Persons for the purpose of
effecting a transaction or transactions in which Acquisition or another entity
to be formed by certain of the Reporting Persons would acquire all of the Shares
not presently owned by such Reporting Persons.

Information with respect to each Reporting Person is given solely by
such Reporting Person, and no Reporting Person has responsibility for the
accuracy or completeness of the information supplied by any other Reporting
Person and each Reporting Person agrees that this Statement is filed on behalf
of such Reporting Person only.

The Reporting Persons may be deemed to constitute a "group" for the
purposes of Rule 13d-3 of the Exchange Act.

-30-
<PAGE>

(b) The address of the principal business office of each Reporting
Person is as follows:

<TABLE>
<CAPTION>
Reporting Person Address
<S> <C>

399 Venture Partners, Inc. 399 Park Avenue
New York, New York 10043

Citibank, N.A. 399 Park Avenue
New York, New York 10043

Citicorp 399 Park Avenue
New York, New York 10043

Richard M. Klein c/o Sybron Chemicals Inc.
Birmingham Road, P.O. Box 66
Birmingham, New Jersey 08011

John H. Schroeder c/o Sybron Chemicals Inc.
Birmingham Road, P.O. Box 66
Birmingham, New Jersey 08011

Peter de Bruijn c/o Sybron Chemie Nederland B.V.
Eisteinstraat 11
P.O. Box 46
6710 BA Ede, Holland

Albert L. Eilender c/o Sybron Chemicals Inc.
Birmingham Road, P.O. Box 66
Birmingham, New Jersey 08011

Joe. J. Belcher c/o Sybron Chemicals Inc.
P.O. Box 125
Highway 29A
Wellford, South Caroilina 29385

Stephen R. Adler c/o Sybron Chemicals Inc.
Birmingham Road, P.O. Box 66
Birmingham, New Jersey 08011

Jose M. Rodriguez c/o Sybron Quimica, S.A. de C.V.
Rio Ocoyoacac No. 433
Col. Barrio de Santamaria
Estado de Mexico, C.P. 52740

Gerald DeLaney c/o Sybron Chemicals Inc.
Birmingham Road, P.O. Box 66
Birmingham, New Jersey 08011
</TABLE>

-31-
<PAGE>

<TABLE>
<S> <C>
Dwight Tamaki c/o Sybron Chemicals Inc.
Birmingham Road, P.O. Box 66
Birmingham, New Jersey 08011

Robert Login c/o Sybron Chemicals Inc.
P.O. Box 125
Highway 29A
Wellford, South Caroilina 29385

Aard Vandenberg c/o Sybron Chemie Nederland B.V.
Eisteinstraat 11
P.O. Box 46
6710 BA Ede, Holland

Hans Huiskes c/o Sybron Chemie Nederland B.V.
Eisteinstraat 11
P.O. Box 46
6710 BA Ede, Holland

Hans Bruggnwirth c/o Sybron Chemie Nederland B.V.
Eisteinstraat 11
P.O. Box 46
6710 BA Ede, Holland

Frank Zunino c/o Sybron Chemicals Inc.
4996 Gunston Court
San Diego, California 92130

James T. Comfort c/o Shawnee Partnership
6 Crampton Gap
Richardson, TX 75080

Nathalie C. Urry c/o 63 BR Partnership
1725 North Broadway
Shawnee, Oklahoma 74801

William T. Comfort, III c/o 63 BR Partnership
1725 North Broadway
Shawnee, Oklahoma 74801

Stuyvesant P. Comfort c/o 63 BR Partnership
1725 North Broadway
Shawnee, Oklahoma 74801

Shawnee Partnership 6 Crampton Gap
Richardson, TX 75080
</TABLE>

-32-
<PAGE>

<TABLE>
<S> <C>
63 BR Partnership 1725 North Broadway
Shawnee, Oklahoma 74801

Richard M. Cashin c/o 399 Venture Partners
399 Park Avenue
New York, New York 10043

Michael A. Delaney c/o 399 Venture Partners
399 Park Avenue
New York, New York 10043

A. Richard Blair c/o Freimark Blair & Company, Inc.
152 Comfort Lane
Pawleys Island, SC 29585

Delores D. Blair c/o Freimark Blair & Company, Inc.
152 Comfort Lane
Pawleys Island, SC 29585

Stephen W. Klein c/o SoChem, Inc.
378 Thornden Street
South Orange, NJ 07079
</TABLE>

(c) 399 Venture is a wholly-owned subsidiary of Citibank. 399 Venture
is a small business investment company which is primarily engaged in making
equity investments.

Citibank is a wholly-owned subsidiary of Citicorp. Citibank is
principally engaged in the general banking business.

Citicorp is a multi-bank holding company principally engaged, through
its subsidiaries, in the general financial services business.

Richard M. Klein's present principal occupation is President and Chief
Executive Officer of Sybron. John H. Schroeder's present principal occupation
is Executive Vice President, Environmental Products and Services of Sybron.
Peter de Bruijn's present principal occupation is Managing Director of the
Europe Division of Sybron. Albert L. Eilender's present principal occupation is
Executive Vice President of Sybron. Joe J. Belcher's present principal
occupation is Vice President - Textile Chemicals, North America of Sybron.
Stephen R. Adler's present principal occupation is Vice President of Human
Resources of Sybron. Jose M. Rodriguez's present principal occupation is
General Manager - Latin America and Pacific Textile Operations of Sybron.
Gerald DeLaney's present principal occupation is Vice President, Specialty
Organics and Polymers of Sybron. Dwight Tamaki's present principal occupation is
Vice President - Industrial Ion Exchange of Sybron. Robert Login's present
principal occupation is Vice President - Technology of Sybron. Aard Vandenberg's
present principal occupation is Plant Manager of Sybron. Hans Huiskes present
principal occupation is Vice President of Finance and Administration of Sybron.
Hans Bruggnwirth's present principal occupation is Vice President of Sales and
Marketing of Sybron. Frank Zunino's present principal occupation is District
Sales Manager of Sybron.

-33-
<PAGE>

Shawnee Partnership is an Oklahoma partnership, the partners of which
are James T. Comfort, Nathalie C. Urry, William T. Comfort, III and Stuyvesant
P. Comfort.

63 BR Partnership is an Oklahoma partnership, the partners of which
are Nathalie C. Urry, William T. Comfort, III and Stuyvesant P. Comfort.

James T. Comfort is a partner at the law firm of Sharp, Comfort and
Merrett, P.C. Nathalie C. Urry is a private investor. William T. Comfort,
III's present principal occupation is Investment Director at CVC Capital
Partners, London, England. Stuyvesant P. Comfort's present principal occupation
is Business Investment Analyst at Microsoft Corporation.

James T. Comfort is the brother of William T. Comfort, Jr. and William
T. Comfort, III, Stuyvesant P. Comfort and Nathalie C. Urry are the children of
William T. Comfort, Jr. William T. Comfort, Jr. is the Chairman of Citicorp
Venture Capital, Ltd. ("CVC"), a wholly-owned subsidiary of Citibank. Richard
M. Cashin's principal occupation is President and Managing Director of CVC. Mr.
Cashin was previously a director of Sybron from 1987 to 1988, and from 1989 to
1992. Michael A. Delaney's current principal occupation is Vice President of
CVC. Mr. Delaney was previously a director of Sybron from 1992 to 1997.

A. Richard Blair's present principal occupation is President of
Freimark Blair & Company, Inc., a securities dealer. Delores D. Blair's present
principal occupation is Vice President and Secretary of Freimark Blair &
Company, Inc. Stephen W. Klein's present principal occupation is President of
SoChem, Inc. and he is the brother of Richard M. Klein.

(d) During the last five years, none of the Reporting Persons, and to
the knowledge of 399 Venture, Citibank and Citicorp, none of the executive
officers or directors of 399 Venture, Citibank or Citicorp, has been convicted
in a criminal proceeding (excluding traffic violations or similar misdemeanors).

(e) Except as described herein, during the last five years, none of
the Reporting Persons, and to the knowledge of 399 Venture, Citibank and
Citicorp, none of the executive officers or directors of 399 Venture, Citibank
or Citicorp, have been a party to an civil proceeding of a judicial or
administrative body of competent jurisdiction as a result of which such person
or entity was or is subject to a judgment, decree or final order enjoining
future violations of, or prohibiting or mandating activities subject to, federal
or state securities laws or finding any violation with respect to such laws. In
1992 Citibank consented to orders issued by the Securities and Exchange
Commission (the "SEC") and the Comptroller of the Currency, without admitting or
denying allegations and findings, with respect to findings that Citibank
violated certain securities laws in its role as a transfer agent with respect to
the proper safeguarding and destruction of canceled securities certificates. The
orders, and related facts and circumstances, were described in Current Reports
on Form 8-K, dated July 21, 1992, and January 19, 1993, that Citicorp previously
filed with the SEC.

(f) Citicorp is a Delaware corporation. Citibank is a national
banking association and 399 Venture is a Delaware corporation. Except as
indicated on Annex A, to the knowledge of Citicorp, Citibank and 399 Venture,
each executive officer or director of such Reporting Person is a citizen of the
United States. Shawnee is an Oklahoma general partnership. 63 BR is an Oklahoma
general partnership. Richard M. Klein , John H. Schroeder, Albert L. Eilender,
Joe J. Belcher, Stephen R. Adler, Gerald DeLaney, Dwight Tamaki, Robert Login,
Frank Zunino, James T. Comfort, Nathalie C. Urry, William T. Comfort, III,
Stuyvesant P. Comfort, Richard M. Cashin, Michael A. Delaney, A.

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<PAGE>

Richard Blair, Delores D. Blair and Stephen W. Klein are citizens of the United
States. Peter de Bruijn, Aard Vandenberg, Hans Huiskes and Hans Bruggnwirth are
citizens of the Netherlands. Jose M. Rodriguez is a citizen of Great Britain and
of Mexico.

ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

No funds were involved in the formation of the group by the Reporting
Persons. It is anticipated that the source of funds for the transaction(s)
proposed by the Reporting Persons will be loans from institutional lenders and
an issuance or issuances of debt securities, but the exact forms of such loans
and securities have not been determined.

ITEM 4. PURPOSE OF TRANSACTION.

On October 17, 1997, the Original Reporting Persons, acting as a
group, presented to Sybron's Board of Directors a proposal to acquire, through
an entity to be formed by them, all of the issued and outstanding Shares, not
owned by the Original Reporting Persons, for a purchase price of $32 to $33 per
Share in cash, with the result that the Shares would become eligible for
termination of registration pursuant to Section 12(g)(4) of the Exchange Act.

On December 11, 1997, Sybron entered into an Agreement and Plan of Merger
(the "Merger Agreement") by and among Sybron, Sybron Holdings, Inc.
("Holdings"), a Delaware Corporation and Acquisition, a Delaware corporation and
wholly owned subsidiary of Holdings. A copy of the Merger Agreement is filed
herewith as Exhibit 2 and incorporated herein by reference to Exhibit 2 to
Sybron's Current Report on Form 8-K filed with the Commission on December 16,
1997. Pursuant to and subject to the terms and conditions of the Merger
Agreement, Acquisition will merge with and into Sybron (the "Merger"), with
Sybron being the surviving corporation, and Sybron's stockholders (other than
Holdings and Acquisition) will receive $34.50 per Share, in cash. The Merger
Agreement provides that holders of Shares (other than Holdings and Acquisition)
would be entitled to additional consideration under certain circumstances if,
within 18 months after the Merger, all or part of Sybron is disposed of by
Holdings.

The terms of the Merger Agreement require, among other things, the
affirmative vote of holders of a majority of the outstanding Shares that are not
beneficially owned by the Reporting Persons or by persons that are affiliates or
associates of the Reporting Persons.

The foregoing description of the Merger Agreement is qualified in its
entirety by reference to the terms of the Merger Agreement which has been filed
as Exhibit 2 to this Statement.

The increased price per Share was agreed upon after extensive negotiations
between certain of the Original Reporting Persons and a Special Committee
consisting of two disinterested outside members of Sybron's Board of Directors
appointed to evaluate the proposal. Chase Securities, Inc. is acting as
financial advisor to the Special Committee.

As a result of the Merger, the Shares would be delisted from the American
Stock Exchange and become eligble for termination of registration pursuant to
Section 12(g)(4) of the Exchange Act.

On January 7, 1998, in response to an unsolicited offer by GenCorp to
acquire all of the Shares in a merger in which holders of Shares would receive
$38 per Share, in cash, CVC on behalf of 399 Venture, notified GenCorp that it
intended to remain a stockholder in Sybron. Later that day, Dr. Klein and Mr.
Schroeder each notified the Board of Directors of Sybron that they supported the
position expressed by CVC in its letter to

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<PAGE>

Gencorp. Copies of the letters sent by CVC to GenCorp and by Dr. Klein and Mr.
Schroeder to the Sybron Board of Directors are filed herewith as Exhibits 3, 4
and 5.

Later on January 7, the Company announced that its Board of the Directors
had unanimously rejected the unsolicited GenCorp offer after concluding that the
offer was not viable in light of the holdings of the Reporting Persons and the
matters described in the preceding paragraph.

On January 19, 1998, the other Reporting Persons agreed to join in the
group previously formed by the Original Reporting Persons for the purposes set
forth above. On January 19, 1998, each of the Reporting Persons entered into the
amended and restated filing agreement filed herewith as Exhibit 1.

At the present time, other than the actions described in the preceding
paragraph, the Reporting Persons have no specific plans or proposals that would
relate to or result in any of the actions specified in clauses (a) through (j)
of Item 4. However, the Reporting Persons may consider any such plans or
proposals in the future, if deemed appropriate.

ITEM 5. INTEREST IN SECURITIES OF THE ISSURER.

(a) 399 Venture is the record and beneficial owner of 2,025,000
Shares or approximately 35.7% of the issued and outstanding Shares.

399 Venture is a wholly owned subsidiary of Citibank, N.A., and
Citibank, N.A. is a wholly owned subsidiary of Citicorp. Citibank, N.A. and
Citicorp own no Shares directly.

Richard M. Klein is the beneficial owner of 470,551 Shares, consisting
of 455,895 issued and outstanding Shares and including options to purchase 7,800
Shares which are exercisable on or before 60 days from the date hereof and 6,856
Shares which Dr. Klein has the right to receive within 60 days from Sybron's
Executive Bonus Plan, representing approximately 8.3% of the class. Dr. Klein
also holds options to purchase 22,200 Shares which options are not presently
exercisable within 60 days of the date hereof and are not included in his
beneficial ownership for the purposes of this Item.

John H. Schroeder is the beneficial owner of 67,482 Shares, consisting
of 57,643 issued and outstanding Shares and including options to purchase 7,200
Shares which are exercisable on or before 60 days from the date hereof and 2,639
Shares which Mr. Schroeder has the right to receive within 60 days from Sybron's
Executive Bonus Plan, representing approximately 1.2% of the class. Mr.
Schroeder also holds options to purchase 19,800 Shares which options are not
presently exercisable within 60 days of the date hereof and are not included in
his beneficial ownership for the purposes of this Item.

Peter de Bruijn is the beneficial owner of 8,745 Shares, consisting of
1,787 issued and outstanding Shares and including options to purchase 6,250
Shares which are exercisable on or before 60 days from the date hereof and 708
Shares which Mr. de Bruijn has the right to receive within 60 days from Sybron's
Executive Bonus Plan, representing approximately 0.2% of the class. Mr. de
Bruijn also holds options to purchase 15,750 Shares which options are not
presently exercisable within 60 days of the date hereof and are not included in
his beneficial ownership for the purposes of this Item.

Albert L. Eilender is the beneficial owner of 14,262 Shares,
consisting of 5,504 issued and outstanding Shares and including options to
purchase 5,000 Shares which are exercisable on or

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<PAGE>

before 60 days from the date hereof and 3,758 Shares which Mr. Eilender has the
right to receive within 60 days from Sybron's Executive Bonus Plan, representing
approximately 0.3% of the class. Mr. Eilender also holds options to purchase
20,000 Shares which options are not presently exercisable within 60 days of the
date hereof and are not included in his beneficial ownership for the purposes of
this Item.

Joe J. Belcher is the beneficial owner of 18,863 Shares, consisting of
15,913 issued and outstanding Shares and including options to purchase 2,950
Shares which are exercisable on or before 60 days from the date hereof,
representing approximately 0.3% of the class. Mr. Belcher also holds options to
purchase 11,050 Shares which options are not presently exercisable within 60
days of the date hereof and are not included in his beneficial ownership for the
purposes of this Item.

Stephen R. Adler is the beneficial owner of 17,453 Shares, consisting
of 12,286 issued and outstanding Shares and including options to purchase 4,000
Shares which are exercisable on or before 60 days from the date hereof and 1,167
Shares which Mr. Adler has the right to receive within 60 days from Sybron's
Executive Bonus Plan, representing approximately 0.3% of the class. Mr. Adler
also holds options to purchase 11,000 Shares which options are not presently
exercisable within 60 days of the date hereof and are not included in his
beneficial ownership for the purposes of this Item.

Jose M. Rodriguez is the beneficial owner of 15,271 Shares, consisting
of 13,196 issued and outstanding Shares and including options to purchase 2,075
Shares which are exercisable on or before 60 days from the date hereof,
representing approximately 0.3% of the class. Mr. Rodriguez also holds options
to purchase 8,300 Shares which options are not presently exercisable within 60
days of the date hereof and are not included in his beneficial ownership for the
purposes of this Item.

Gerald DeLaney is the beneficial owner of 14,616 Shares, consisting of
12,961 issued and outstanding Shares and including options to purchase 800
Shares which are exercisable on or before 60 days from the date hereof and 855
Shares which Mr. DeLaney has the right to receive within 60 days from Sybron's
Executive Bonus Plan, representing approximately 0.3% of the class. Mr. DeLaney
also holds options to purchase 1,700 Shares which options are not presently
exercisable within 60 days of the date hereof and are not included in his
beneficial ownership for the purposes of this Item.

Dwight Tamaki is the beneficial owner of 18,833 Shares, consisting of
17,287 issued and outstanding Shares and including options to purchase 700
Shares which are exercisable on or before 60 days from the date hereof and 846
Shares which Mr. Tamaki has the right to receive within 60 days from Sybron's
Executive Bonus Plan representing approximately 0.3% of the class. Mr. Tamaki
also holds options to purchase 1,800 Shares which options are not presently
exercisable within 60 days of the date hereof and are not included in his
beneficial ownership for the purposes of this Item.

Robert Login is the beneficial owner of 14,184 Shares, consisting of
1,944 issued and outstanding Shares and including options to purchase 10,300
Shares which are exercisable on or before 60 days from the date hereof and 1,940
Shares which Dr. Login has the right to receive within 60 days from Sybron's
Executive Bonus Plan, representing approximately 0.2% of the class. Dr. Login
also holds options to purchase 17,700 Shares which options are not presently
exercisable within 60 days of the date hereof and are not included in his
beneficial ownership for the purposes of this Item.

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<PAGE>

Aard Vandenberg is the beneficial owner of 3,299 Shares, consisting of
1,682 issued and outstanding Shares and including options to purchase 830 Shares
which are exercisable on or before 60 days from the date hereof and 787 Shares
which Mr. Vandenberg has the right to receive within 60 days from Sybron's
Executive Bonus Plan representing less than 0.1% of the class. Mr. Vandenberg
also holds options to purchase 1,420 Shares which options are not presently
exerciseable within 60 days of the date hereof and are not included in his
beneficial ownership for the purposes of this Item.

Hans Bruggnwirth is the beneficial owner of 1,788 Shares, consisting
of 66 issued and outstanding Shares and including options to purchase 1,620
Shares which are exercisable on or before 60 days from the date hereof and 102
Shares which Mr. Bruggnwirth has the right to receive within 60 days from
Sybron's Executive Bonus Plan representing less than 0.1% of the class. Mr.
Bruggnwirth also holds options to purchase 3,130 Shares which options are not
presently exerciseable within 60 days of the date hereof and are not included in
his beneficial ownership for the purposes of this Item.

Hans Huiskes the beneficial owner of 3,993 Shares, consisting of 2,045
issued and outstanding Shares and including options to purchase 640 Shares which
are exercisable on or before 60 days from the date hereof, and 1,308 Shares
which Mr. Huiskes has the right to receive within 60 days from Sybron's
Executive Bonus Plan representing less than 0.1% of the class. Mr. Huiskes also
holds options to purchase 1,360 Shares which options are not presently
exerciseable within 60 days of the date hereof and are not included in his
beneficial ownership for the purposes of this Item.

Frank Zunino is the beneficial owner of 3,229 Shares, consisting of
2,729 issued and outstanding Shares and including options to purchase 500 Shares
which are exercisable on or before 60 days from the date hereof, representing
less than 0.1% of the class.

Shawnee is a partnership organized under the laws of the state of
Oklahoma. Shawnee is the beneficial owner of 27,366 of the outstanding Shares,
approximately 0.5% of the class. James T. Comfort, Nathalie C. Urry, William T.
Comfort, III and Stuyvesant P. Comfort, in their capacities as partners of
Shawnee, beneficially own such Shares and share voting and dispositive power
with respect thereto.

63 BR is a partnership organized under the laws of the state of
Oklahoma. 63 BR is the beneficial owner of 20,500 of the outstanding Shares,
approximately 0.4% of the class. Nathalie C. Urry, William T. Comfort, III and
Stuyvesant P. Comfort, in their capacities as partners of 63 BR, beneficially
own such Shares and share voting and dispositive power with respect thereto.

Stuyvesant P. Comfort is the beneficial owner of 50,866 Shares or
approximately 0.9% of the class. Mr. Comfort has sole voting and dispositive
power with regard to 3,000 Shares owned by him individually. Mr. Comfort also
has shared voting and dispositive power with regard to 47,866 Shares in his
capacity as a partner of Shawnee and 63 BR.

Nathalie C. Urry and William T. Comfort, III each beneficially own
47,866 Shares or approximately 0.8% of the class. Ms. Urry and Mr. Comfort have
shared voting and dispositive powers in their capacities as partners of Shawnee
and 63 BR.

James T. Comfort is the beneficial owner of 27,366 Shares or
approximately 0.5% of the class. Mr. Comfort has shared voting and dispositive
power in his capacity as a partner of Shawnee.

Richard M. Cashin is the beneficial owner of 117,310 Shares or
approximately 2.1 % of the class.

Michael A. Delaney is the beneficial owner of 1,800 Shares,
representing less than 0.1% of the class.

A. Richard Blair is the beneficial owner of 15,000 Shares or
approximately 0.3% of the class.

Delores D. Blair is the beneficial owner of 2,000 Shares, representing
less than 0.1% of the class.

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<PAGE>

Stephen W. Klein is the beneficial owner of 2,000 Shares, representing
less than 0.1% of the class.

The options referred to above which are not presently exercisable will
become exercisable as a result of the Merger and the transactions contemplated
by the Merger Agreement.

(b) 399 Venture has sole ownership of, and voting and dispositive
powers over, 2,025,000 Shares. Citicorp and Citibank, N.A. own no Shares
directly. Dr. Klein has sole ownership of, and voting and dispositive powers
over, 470,551 Shares. Mr. Schroeder has sole ownership of, and voting and
dispositive powers over, 67,482 Shares. Mr. de Bruijn has sole ownership of, and
voting and dispositive powers over 8,745 Shares. Mr. Eilender has sole ownership
of, and voting and dispositive powers over 14,262 Shares. Mr. Belcher has sole
ownership of, and voting and dispositive powers over 18,863 Shares. Mr. Adler
has sole ownership of, and voting and dispositive powers over 17,453 Shares. Mr.
Rodriguez has sole ownership of, and voting and dispositive powers over 15,271
Shares. Mr. DeLaney has sole ownership of, and voting and dispositive powers
over 14,616 Shares. Mr. Tamaki has sole ownership of, and voting and dispositive
powers over 18,833 Shares. Dr. Login has sole ownership of, and voting and
dispositive powers over 14,184 Shares. Mr. Vandenberg has sole ownership of, and
voting and dispositive powers over 3,299 Shares. Mr. Huiskes has sole ownership
of, and voting and dispositive powers over 3,993 Shares. Mr. Bruggnwirth has
sole ownership of, and voting and dispositive powers over 1,788 Shares. Mr.
Zunino has sole ownership of, and voting and dispositive powers over 3,229
Shares. Shawnee has sole ownership of, and voting and dispositive powers over
27,366 Shares. 63 BR has sole ownership of, and voting and dispositive powers
over 20,500 Shares. James T. Comfort has shared ownership of, and voting and
dispositive powers over 27,366 Shares. Nathalie C. Urry has shared ownership of,
and voting and dispositive powers over 47,866 Shares. William T. Comfort, III
has shared ownership of, and voting and dispositive powers over 47,866 Shares.
Stuyvesant P. Comfort has sole ownership of, and voting and dispositive powers
over 3,000 Shares and has shared ownership of, and voting and dispositive powers
over 47,866 Shares. Mr. Cashin has sole ownership of, and voting and dispositive
powers over 117,310 Shares. Mr. Delaney has sole ownership of, and voting and
dispositive powers over 1,800 Shares. Mr. Blair has sole ownership of, and
voting and dispositive power over 15,000 Shares. Mrs. Blair has sole ownership
of, and voting and dispositive power over 2,000 Shares. Mr. Stephen W. Klein has
sole ownership of, and voting and dispositive powers over 2,000 Shares.

(c) On January 12, 1998, A. Richard Blair sold 6,100 Shares at $36
per Share and on January 13, 1998 A. Richard Blair sold 100 Shares at $36.50 per
Share. On January 15, 1998, Mr. Blair bought 1,100 Shares at $36 per Share. Such
purchases and sales were effected through open market brokerage transactions by
Freimark Blair & Co., Inc. On January 12, 1998, Delores D. Blair sold 2,000
Shares at $36 per Share and on January 14, 1998 Delores D. Blair bought 2,000
Shares at $36 per Share. Such purchases and sales were effected through open
market brokerage transactions by Freimark Blair & Co., Inc. None of the other
Reporting Persons has effected any transactions in the class of securities
reported on within the last 60 days.

(d) Not applicable.

(e) Not applicable.

ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT
TO SECURITIES OF THE ISSUER.

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<PAGE>

To the extent such information was available on the date hereof, to
the knowledge of each Reporting Person on the date hereof, except as set forth
herein or in the Exhibits, if any, filed herewith, no Reporting Person nor any
of its executive officers or directors, as applicable, has any other contracts,
arrangements, understandings or relationships (legal or otherwise) with any
person with respect to securities issued by Sybron, including, but not limited
to, transfer or voting of any such securities, finder's fees, joint ventures,
loan or option arrangements, puts or calls, guarantees of profits, divisions of
profits or loss or the giving or withholding of proxies.

The Original Reporting Persons have an understanding that an as yet
undetermined portion of each Original Reporting Person's respective Shares may
be converted into equity securities of Holdings and anticipate entering into
agreement(s) among themselves relating to the Shares, Holdings, Acquisition
and/or Sybron, but no such agreement(s) have been entered into as of the date
hereof (other than the Merger Agreement and the Filing Agreement). It is
anticipated that certain other Reporting Persons who are employees of Sybron may
also participate in such conversion, but the identities of such participants
have not been fully determined.

Richard M. Klein, John H. Schroeder, Albert L. Eilender, Joe J.
Belcher, Stephen R. Adler, Jose M. Rodriguez, Gerald DeLaney, Dwight Tamaki,
Robert Login and Frank Zunino are eligible to participate in Sybron's Savings &
Thrift Plan, as amended, (the "401(k) Plan") 1992 Stock Option Plan, as amended,
and Executive Bonus Plan. Additionally, all of the above have the right to
participate in Sybron's Supplemental Executive Retirement Plan (the "SERP").
Each of the Reporting Persons referred to in this paragraph is an employee of
Sybron.

Pursuant to Sybron's Savings and Thrift Plan, as amended (the "401(k)
Plan"), each of Dr. Klein, Mr. Schroeder, Mr. Eilender, Mr. Belcher, Mr. Adler,
Mr. Rodriguez, Mr. DeLaney, Mr. Tamaki, Dr. Login and Mr. Zunino may purchase
Shares, in the 401(k) Plan, by deferring compensation otherwise payable to them
by Sybron, and Sybron will contribute, in the form of Shares on behalf of each
of Dr. Klein, Mr. Schroeder, Mr. Eilender, Mr. Belcher, Mr. Adler,
Mr. Rodriguez, Mr. DeLaney, Mr. Tamaki, Dr. Login and Mr. Zunino an amount
equal to 35 cents for each dollar of such deferred compensation invested in the
401(k) Plan. The Shares beneficially owned by each such person referred to above
through the 401(k) Plan are included in the number of Shares beneficially owned
by each such person in Item 5 above.

Pursuant to the terms of Sybron's 1992 Stock Option Plan, as amended,
from time to time, each of Dr. Klein, Mr. Schroeder, Mr. de Bruijn, Mr.
Eilender, Mr. Belcher, Mr. Adler, Mr. Rodriguez, Mr. DeLaney, Mr. Tamaki, Dr.
Login, Mr. Vandenberg, Mr. Huiskes, Mr. Bruggnwirth and Mr. Zunino may be
awarded Shares in the sole discretion of Sybron's Board of Directors. During
the 60 days immediately preceding the date hereof, no options were granted to
Dr. Klein, Mr. Schroeder, Mr. de Bruijn, Mr. Eilender, Mr. Belcher, Mr. Adler,
Mr. Rodriguez, Mr. DeLaney, Mr. Tamaki, Dr. Login, Mr. Vandenberg, Mr. Huiskes,
Mr. Bruggnwirth or Mr. Zunino.

Pursuant to the terms of the Executive Bonus Plan, certain executives
of Sybron receive a portion of their bonus in the form of Shares. Dr. Klein,
Mr. Schroeder, Mr. de Bruijn, Mr. Eilender, Mr. Adler, Mr. DeLaney, Mr. Tamaki,
Dr. Login, Mr. Vandenberg, Mr. Huiskes, Mr. Bruggnwirth and Mr. Zunino each are
eligible to receive Shares pursuant to the Executive Bonus Plan as set forth in
Item 5(a) above. Such Shares have been earned by such executives and are payable
on March 1, 1998. Each

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<PAGE>

of the Reporting Persons that is also an employee of Sybron is eligible to
participate in the Executive Bonus Plan in future years.

Pursuant to the terms of the SERP, on an annual basis, on or about
March 1st, Sybron makes a contribution to the SERP for the benefit of each of
Dr. Klein, Mr. Schroeder, Mr. Eilender, Mr. Belcher, Mr. Adler, Mr. Rodriguez,
Mr. DeLaney, Mr. Tamaki, Dr. Login and Mr. Zunino which is based on the
reduction in the amount that Dr. Klein, Mr. Schroeder, Mr. Eilender, Mr.
Belcher, Mr. Adler, Mr. Rodriquez, Mr. DeLaney, Mr. Tamaki, Dr. Login and Mr.
Zunino, respectively, would be eligible to invest in the 401(k) Plan, but for
the limits on recognized compensation under applicable tax law.

ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.

<TABLE>
<CAPTION>
Exhibit Description Page
<S> <C> <C>
Exhibit 1 Amended and Restated Joint Filing
Agreement, dated January 19, 1998 among
399 Venture, Citibank, N.A., Citicorp,
Richard M. Klein, John H. Schroeder,
Peter de Bruijn, Albert L. Eilender,
Joe J. Belcher, Stephen R. Adler, Jose
M. Rodriguez, Gerald DeLaney, Dwight
Tamaki, Robert Login, Aard Vandenberg,
Hans Huiskes, Hans Bruggnwirth, Frank
Zunino, James T. Comfort, Nathalie C.
Urry, William T. Comfort, III,
Stuyvesant P. Comfort, Shawnee, 63 BR,
Richard M. Cashin, Michael A. Delaney,
A. Richard Blair, Delores D. Blair and
Stephen W. Klein.

Exhibit 2 Agreement and Plan of Merger, dated
December 11, 1997 among Sybron,
Holdings and Acquisition incorporated
by reference to Exhibit 2 to the Report
on Form 8-K of Sybron Chemicals, Inc.
dated December 11, 1997 and filed
December 16, 1998.

Exhibit 3 Letter dated January 7, 1998 from CVC
to Gencorp.

Exhibit 4 Letter dated January 7, 1998 from
Richard M. Klein to the Sybron Board of
Directors.

Exhibit 5 Letter dated January 7, 1998 from
John Schroeder to the Sybron Board of
Directors.
</TABLE>

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<PAGE>

SIGNATURES

After reasonable inquiry and to the best of their knowledge and
belief, the undersigned certify that the information set forth in this statement
is true, complete and correct. In executing this statement, the undersigned
agree, to the extent required by Rule 13d-1(f), that this statement is being
filed on behalf of each of the reporting persons herein.

Dated: January 20, 1998 399 VENTURE PARTNERS, INC.

By: /s/ Paul C. Schorr IV
-------------------------
Name: Paul C. Schorr IV
Title: Vice President

CITIBANK, N.A.

By: /s/ Mary Lynn Putney
-------------------------
Name: Mary Lynn Putney
Title: Managing Director

CITICORP

By: /s/ Ann M. Goodbody
-------------------------
Name: Ann M. Goodbody
Title: Vice President

/s/ Richard M. Klein
----------------------
Richard M. Klein

/s/ John H. Schroeder
----------------------
John H. Schroeder

/s/ Peter de Bruijn
----------------------
Peter de Bruijn

/s/ Albert L. Eilender
----------------------
Albert L. Eilender

/s/ Joe J. Belcher
----------------------
Joe J. Belcher

-42-
<PAGE>

/s/ Stephen R. Adler
----------------------
Stephen R. Adler

/s/ Jose M. Rodriguez
----------------------
Jose M. Rodriguez

/s/ Gerald DeLaney
----------------------
Gerald DeLaney

/s/ Dwight Tamaki
----------------------
Dwight Tamaki

/s/ Robert Login
----------------------
Robert Login

/s/ Aard Vandenberg
----------------------
Aard Vandenberg

/s/ Hans Huiskes
----------------------
Hans Huiskes

/s/ Hans Bruggnwirth
----------------------
Hans Bruggnwirth

/s/ Frank Zunino
----------------------
Frank Zunino

SHAWNEE PARTNERSHIP

By: /s/ Stuyvesant P. Comfort
------------------------------
Name: Stuyvesant P. Comfort
Title: Partner

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<PAGE>

63 BR PARTNERSHIP

By: /s/ Stuyvesant P. Comfort
--------------------------------
Name: Stuyvesant P. Comfort
Title: Partner

/s/ James T. Comfort
-----------------------------
James T. Comfort

/s/ Nathalie C. Urry
-----------------------------
Nathalie C. Urry

/s/ William T. Comfort, III
-----------------------------
William T. Comfort, III

/s/ Stuyvesant P. Comfort
-----------------------------
Stuyvesant P. Comfort

/s/ Richard M. Cashin
-----------------------------
Richard M. Cashin

/s/ Michael A. Delaney
-----------------------------
Michael A. Delaney

/s/ A. Richard Blair
-----------------------------
A. Richard Blair

/s/ Delores D. Blair
-----------------------------
Delores D. Blair

/s/ Stephen W. Klein
-----------------------------
Stephen W. Klein

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<PAGE>

ANNEX A SCHEDULE 13D RELATING TO
COMMON SHARES OF SYBRON CHEMICALS INC.

(Parenthetical references are to the country of citizenship of persons who are
not United Stated citizens)

Citicorp
Directors Executive Officers
Alain J. P. Belds (Brazil) William I. Campbell (Canada)
D. Wayne Calloway Paul J. Collins
Paul J. Collins Edward Horowitz
Kenneth T. Derr Thomas E. Jones (England)
John M. Deutch Charles E. Long
Ruben Mark Dionisio R. Martin (Argentina)
Richard D. Parsons Robert A. McCormack
John S. Reed Victor J. Menezes (India)
William R. Rhodes Lawrence R. Phillips
Roseanne L. Ridgeway John S. Reed
H. Onno Ruding (Netherlands) William R. Rhodes
Robert B. Shapiro John J. Roobe
Frank A. Shrontz H. Onno Ruding (Netherlands)
Franklin A. Thomas Mary Alice Taylor
Edgar S. Woolard, Jr.

Citibank
Directors Executive Officers
D. Wayne Calloway William I. Campbell (Canada)
Paul J. Collins Paul J. Collins
John M. Deutch Edward Horowitz
Ruben Mark Thomas E. Jones (England)
Richard D. Parsons Charles E. Long
John S. Reed Dionisio R. Martin (Argentina)
William R. Rhodes Robert A. McCormack
Roseanne L. Ridgeway Victor J. Menezes (India)
Robert B. Shapiro Lawrence R. Phillips
Frank A. Shrontz John S. Reed
Franklin A. Thomas William R. Rhodes
John J. Roobe
H. Onno Ruding (Netherlands)
Mary Alice Taylor

399 Venture Partners, Inc.
Directors Executive Officers
William T. Comfort, Jr. William T. Comfort, Jr.
Ann M. Goodbody David F. Thomas
Thomas E. Jones Bryon L. Knief
Frederick A. Roesch Richard M. Cashin
Charles E. Corpening
Michael A. Delaney
Noelle M. Doumar
David Y. Howe
Richard E. Mayberry
Thomas F. McWilliams
M. Saleem Maquaddam
Paul C. Schorr
Joseph M. Silvestri
James A. Urry
John D. Weber
Lauren M. Connelly
Helene B. Shavin
Thomas H. Sanders

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<PAGE>

Exhibit 1

Amended and Restated Filing Agreement dated January 19, 1998
Re: Joint Filing of Schedule 13D

The undersigned hereby agree that:

(i) each of them is individually eligible to use the Schedule 13D
attached hereto;

(ii) the attached Schedule 13D is filed on behalf of each of them;

(iii) each of them is responsible for the timely filing of such
Schedule 13D and any amendments thereto, and for the
completeness and accuracy of the information therein concerning
himself or itself; but none of them is responsible for the
completeness and accuracy of the information concerning the
other persons making the filing, unless he or it knows or has
reason to believe that such information is inaccurate.

/s/ Richard M. Klein 399 VENTURE PARTNERS, INC.
- -----------------------
Richard M. Klein
/s/ Paul C. Schorr IV
/s/ John H. Schroeder By:_______________________
- ----------------------- Name: Paul C. Schorr IV
John H. Schroeder Title: Vice President

/s/ Peter de Bruijn CITIBANK, N.A.
- -----------------------
Peter de Bruijn /s/ Mary Lynn Putney
By:_______________________
/s/ Albert L. Eilender Name: Mary Lynn Putney
- ----------------------- Title: Managing Director
Albert L. Eilender
CITICORP
/s/ Joe J. Belcher
- ----------------------- /s/ Ann M. Goodbody
Joe J. Belcher By:_______________________
Name: Ann M. Goodbody
/s/ Stephen R. Adler Title: Vice President
- -----------------------
Stephen R. Adler /s/ Richard M. Cashin
--------------------------
/s/ Richard Blair Richard M. Cashin
- -----------------------
A. Richard Blair /s/ Delores D. Blair
--------------------------
Delores D. Blair

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<PAGE>

/s/ Michael A. Delaney SHAWNEE PARTNERSHIP
- --------------------------
Michael A. Delaney
/s/ James T. Comfort
/s/ Jose M. Rodriguez By:____________________________
- -------------------------- Name: James T. Comfort
Jose M. Rodriguez Title: Partner

/s/ Gerald Delaney /s/ Nathalie C. Urry
- -------------------------- By:____________________________
Gerald DeLaney Name: Nathalie C. Urry
Title: Partner
/s/ Dwight Tamaki
- -------------------------- /s/ William T. Comfort, II
Dwight Tamaki By:____________________________
Name: William T. Comfort, II
/s/ Robert Login Title: Partner
- --------------------------
Robert Login /s/ Stuyvesant P. Comfort
By:____________________________
/s/ Aard Vanderberg Name: Stuyvesant P. Comfort
- -------------------------- Title: Partner
Aard Vandenberg
63 BR PARTNERSHIP
/s/ Hans Huiskes
- -------------------------- /s/ Nathalie C. Urry
Hans Huiskes By:____________________________
Name: Nathalie C. Urry
/s/ Hans Bruggnwirth Title: Partner
- --------------------------
Hans Bruggnwirth /s/ William T. Comfort, III
By:____________________________
/s/ James T. Comfort Name: William T. Comfort, III
- -------------------------- Title: Partner
James T. Comfort
/s/ Stuyvesant P. Comfort
/s/ Nathalie C. Urry By:____________________________
- -------------------------- Name: Stuyvesant P. Comfort
Nathalie C. Urry Title: Partner

/s/ William T. Comfort III /s/ Frank Zunino
- -------------------------- -----------------------
William T. Comfort, III Frank Zunino

/s/ Stuyvesant P. Comfort /s/ Stephen W. Klein
- -------------------------- -----------------------
Stuyvesant P. Comfort Stephen W. Klein

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<PAGE>

EXHIBIT 3
[LETTERHEAD OF CITIBANK]

[LOGO]

January 7, 1998

Mr. John B. Yasinsky
Chairman
GenCorp
175 Ghent Road
Fairlawn, OH 44333-3300

FAX: (330)869-4410

Dear John:

In light of the obvious confusion on your side concerning Citicorp Venture
Capital's intentions regarding Sybron, I thought it might be helpful to
reiterate CVC's views on this matter.

By way of background, Citicorp Venture Capital's philosophy is to be a
long-term investor supporting management in the growth of their companies. As
I indicated, CVC continues to be quite enthusiastic about the prospects of
Sybron Chemical and is committed to remaining invested in the company.
Consistent with this, we have no intentions of selling our position at this
time.

We are participating with the buying group in the transaction that has been
approved by Sybron's Board and Special Committee because we recognize that the
investment perspective of Sybron's public stockholders may differ from our own.
Due, in large part, to the illiquidity and lack of analyst attention that have
resulted from Sybron's size, Sybron's stock performance has been mediocre. The
transaction approved by the Board is designed to provide the public stockholders
the opportunity to elect to receive a fair price in cash for their shares that
will represent an attractive premium over historic trading prices. We think that
a substantial majority of the public stockholders will find this alternative
attractive. If we are wrong about this, however, and the public stockholders
wish to continue as partners with us in Sybron, we will be happy to accept that
vote of confidence and go forward with Sybron as an independent public company.
We are confident that Sybron's management shares our philosophy.

We hope this will serve to clear up any confusion that may exist in your
mind about our position.

Sincerely,
/S/ Michael A. Delaney
Michael A. Delaney

cc: Sybron's Board of Directors

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<PAGE>

EXHIBIT 4

[LOGO]
[LETTERHEAD OF SYBRON CHEMICALS INC.]

January 7, 1998

TO: Sybron Chemical Inc. Board of Directors

Gentlemen:

This will confirm the fact that my position relative to the sale of my
shares of Sybron Chemicals Inc. to GenCorp is totally consistent with the
position expressed by Citicorp Venture Capital in their letter to GenCorp of
January 7, 1998.

Sincerely,

/s/ Richard M. Klein
Richard M. Klein
President and CEO

RMK/me

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<PAGE>

Exhibit 5

[LETTERHEAD OF SYBRON CHEMICALS INC.] [LOGO]

January 7, 1998

TO: Sybron Chemicals Inc. Board of Directors

Gentlemen:

Sincerely,

/s/ John H. Schroeder
-------------------------------------
John H. Schroeder
Executive Vice President
Environmental Products and Services

JHS/me
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