What is the EIN of AMERICAN CHEMICAL SOCIETY?

The employer identification number (EIN) of AMERICAN CHEMICAL SOCIETY is 23-1531269.

Is AMERICAN CHEMICAL SOCIETY tax-exempt?

Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1946.

When is the next return of AMERICAN CHEMICAL SOCIETY due?

The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.

When did AMERICAN CHEMICAL SOCIETY last file with the IRS?

The latest return in the IRS public files is the 990-N for 2025 for the year ended December 31, 2025.

Who is the principal officer of AMERICAN CHEMICAL SOCIETY?

The 990 for the year ended December 31, 2025 names Ivona Macor.

Who are the officers and directors of AMERICAN CHEMICAL SOCIETY?

The 990 for the year ended December 31, 2025 lists 18 people; 0 received compensation from the organization.

How much revenue does AMERICAN CHEMICAL SOCIETY have?

On its 990 for the year ended December 31, 2025 it reported revenue of $220,085, expenses of $70,602 and total assets of $1,023,612 at year end.

Nonprofit · EIN 23-1531269

AMERICAN CHEMICAL SOCIETY

Also known as PHILADELPHIA SECTION

Tax-exempt · HOLLAND, PA 18966

Financials

Revenue Expenses · by fiscal year end

Financials of AMERICAN CHEMICAL SOCIETY by year, from its e-filed returns
Year ended	Form	Revenue	Expenses	Net income	Total assets	Liabilities	Net assets
December 31, 2025	990	$220,085	$70,602	$149,483	$1,023,612	$0	$1,023,612
December 31, 2024	990	$178,924	$105,186	$73,738	$874,129	$0	$874,129
December 31, 2023	990	$177,271	$98,451	$78,820	$800,391	$0	$800,391

Financial details: 990 for the year ended December 31, 2025

Revenue

Contributions, gifts and grants: $45,899
Membership dues: $42,169
Program service revenue: $40,000
Investment income: $134,186
Net gain from sales of assets: $43,110
Other revenue: $0

Expenses

Grants and similar amounts paid: $5,401
Salaries, compensation and benefits (total): $0
Professional fundraising fees: $0
Accounting fees: $938
Program services (functional): $69,005
Management and general (functional): $1,597

Balance sheet and other

Total assets, start of year: $874,129
Total assets, end of year: $1,023,612
Total liabilities, end of year: $0
Net assets, end of year: $1,023,612
Net assets without donor restrictions: $913,537
Net assets with donor restrictions: $110,075
Gross receipts: $220,085
Employees: 0
Volunteers: 3,000
Year formed: 1937
State of legal domicile: DC

From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.

Officers, directors and key employees

As listed on the 990 for the year ended December 31, 2025, highest compensation first.

Name	Title	Compensation
Ivona Macor	Treasurer Trustee or director, Officer	$0
Andrew Devany	Chair Trustee or director, Officer	$0
Greglynn Gibbs	Chair-elect Trustee or director, Officer	$0
Matthew Irwin	Secretary Trustee or director, Officer	$0
Deborah Cook	Chair of Council Affairs Trustee or director, Officer	$0
Wei Gao	Immediate past Chair Trustee or director, Officer	$0
David Chichowicz	Director Trustee or director	$0
Steven Fleming	Director Trustee or director	$0
Sharon Haynie	Director Trustee or director	$0
Victor Tortorelli	Director Trustee or director	$0
Andres Vazquez-Lopez	Director Trustee or director	$0
Catherine Bentzley	Director Trustee or director	$0
Melissa Cichowicz	Director Trustee or director	$0
Isabella Goodenough	Director Trustee or director	$0
Ann Valentine	Director Trustee or director	$0

3 more people on this return

Name	Title	Compensation
Christine McInnis	Director Trustee or director	$0
Amy Brown	Director Trustee or director	$0
Sherry Zhang	Director Trustee or director	$0

990 for the year ended December 31, 2024: 18 people

Name	Title	Hours / week	Compensation
MS IVONA MACOR	TREASURER Trustee or director, Officer	–	$0
MATTHEW IRWIN	IMMEDIATE PA Trustee or director, Officer	–	$0
MS ANNE DEMASI	SECRETARY Trustee or director, Officer	–	$0
DR MELISSA BETZ CICHOWICZ	DIRECTOR Trustee or director	–	$0
DR DEBORAH H COOK	CHAIR OF COU Trustee or director, Officer	–	$0
DR AMY BROWN	DIRECTOR Trustee or director	–	$0
DR SHARON HAYNIE	DIRECTOR Trustee or director	–	$0
DR DAVID SALAS-DE LA CRUZ	DIRECTOR Trustee or director	–	$0
DR KATHLEEN A SHAGINAW	DIRECTOR Trustee or director	–	$0
DR VICTOR J TORTORELLI	DIRECTOR Trustee or director	–	$0
ANN M VALENTINE	DIRECTOR Trustee or director	–	$0
DR DAVID CICHOWICZ	DIRECTOR Trustee or director	–	$0
ISABELLA GOODENOUGH	DIRECTOR Trustee or director	–	$0
CATHERINE M BENTZLEY	DIRECTOR Trustee or director	–	$0
DR STEVEN A FLEMING	DIRECTOR Trustee or director	–	$0
CHRISTINE E MCINNIS	DIRECTOR Trustee or director	–	$0
WEI GAO	CHAIR Trustee or director, Officer	–	$0
ANDREW DEVANY	CHAIR - ELEC Trustee or director, Officer	–	$0

990 for the year ended December 31, 2023: 20 people

Name	Title	Hours / week	Compensation
DR GRAHAM E DOBEREINER	CHAIR Trustee or director, Officer	–	$0
MS IVONA SASIMOVICH	IMMEDIATE PA Trustee or director, Officer	–	$0
DR WEI WANG	TREASURER Trustee or director, Officer	–	$0
MATTHEW IRWIN	CHAIR ELECT Trustee or director, Officer	–	$0
MS ANNE DEMASI	CHAIR COUNCI Trustee or director, Officer	–	$0
ROSE B MULLIGAN	SECRETARY Trustee or director, Officer	–	$0
DR MELISSA BETZ CICHOWICZ	DIRECTOR Trustee or director	–	$0
DR DEBORAH H COOK	DIRECTOR Trustee or director	–	$0
DR AMY BROWN	DIRECTOR Trustee or director	–	$0
DR SHARON HAYNIE	DIRECTOR Trustee or director	–	$0
DR DAVID SALAS-DE LA CRUZ	DIRECTOR Trustee or director	–	$0
DR KATHLEEN A SHAGINAW	DIRECTOR Trustee or director	–	$0
DR VICTOR J TORTORELLI	DIRECTOR Trustee or director	–	$0
ANN M VALENTINE	DIRECTOR Trustee or director	–	$0
DR DAVID CICHOWICZ	DIRECTOR Trustee or director	–	$0
DR WILLIAM RICK EWING	DIRECTOR Trustee or director	–	$0
ISABELLA GOODENOUGH	DIRECTOR Trustee or director	–	$0
CATHERINE M BENTZLEY	DIRECTOR Trustee or director	–	$0
CHRISTINE E MCINNIS	DIRECTOR Trustee or director	–	$0
WEI GAO	DIRECTOR Trustee or director	–	$0

Address and contacts

Address (IRS master file): 16 SHELLEY RD, HOLLAND, PA 18966-2421
In care of: % IVONA SASIMOVICH
Mailing address (990-N for 2025): 231 South 34th Street, Philadelphia PA 19104
Principal officer (990 for 2025): Ivona Macor, 432 Schindler Dr, Yardley, PA 19067
Principal officer (990-N for 2025): Ivona Macor, 432 Schindler Dr, Yardley PA 19067
Signed the 990: Ivona Macor, Treasurer
Website: https://phillyacs.org

Mission

Empowering all members and our community to thrive through chemistry education and outreach, professional networking, and advocacy. Catalizing enrichment of the greater Philadelphia community through chemistry.
990 for the year ended December 31, 2025

Program accomplishments

chemistry programs, lectures, awards to teachers who have made significant accomplishments in chemistry, interacting with local schools and colleges, continuing education programs and topical groups.
Expenses $63,603
Expenses
Expenses $5,402

What it must file and when

IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.

Tax year	Year ended	Due	IRS public records
2025	December 31, 2025	May 15, 2026	990-N on file
2024	December 31, 2024	May 15, 2025	990 on file
2023	December 31, 2023	May 15, 2024	990 on file

File the 2026 990-N for AMERICAN CHEMICAL SOCIETY

Due May 17, 2027 · e-filed with the IRS by 990.tax, an IRS-authorized e-file provider

IRS record

EIN: 23-1531269
Tax-exempt status: 501(c)(3): Charitable, religious, educational or scientific organization
Foundation status: Publicly supported organization (509(a)(2))
Exempt since: 1946
Accounting year ends: December
Files: Form 990-N (e-Postcard)
Category (NTEE): Science and technology (U33C)
Group exemption: 0945: AMERICAN CHEMICAL SOCIETY
Assets (IRS master file): $1,023,612
Income (IRS master file): $220,085

Filing history

Form	Year ended	Revenue	Expenses	Assets	Return
990-N for 2025 Officer: Ivona Macor	December 31, 2025	≤ $50,000 receipts	–	–	e-Postcard
990	December 2025	$220,085	$70,602	$1,023,612	XML
990	December 2024	$178,924	$105,186	$874,129	XML
990	December 2023	$177,271	$98,451	$800,391	XML
990	December 2022	$111,491	$44,246	$721,571	IRS
990	December 2021	–	–	–	IRS
990	December 2020	–	–	–	IRS
990	December 2018	–	–	–	IRS
990	December 2017	–	–	–	IRS
990-N for 2009 Officer: Dr Andrew Weber	December 31, 2009	≤ $50,000 receipts	–	–	e-Postcard

990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 23-1531269).

Questions about AMERICAN CHEMICAL SOCIETY

What is the EIN of AMERICAN CHEMICAL SOCIETY?: The employer identification number (EIN) of AMERICAN CHEMICAL SOCIETY is 23-1531269.
Is AMERICAN CHEMICAL SOCIETY tax-exempt?: Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1946.
Which annual return does AMERICAN CHEMICAL SOCIETY file?: Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of AMERICAN CHEMICAL SOCIETY due?: The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did AMERICAN CHEMICAL SOCIETY last file with the IRS?: The latest return in the IRS public files is the 990-N for 2025 for the year ended December 31, 2025.
Who is the principal officer of AMERICAN CHEMICAL SOCIETY?: The 990 for the year ended December 31, 2025 names Ivona Macor.
Who are the officers and directors of AMERICAN CHEMICAL SOCIETY?: The 990 for the year ended December 31, 2025 lists 18 people; 0 received compensation from the organization.
How much revenue does AMERICAN CHEMICAL SOCIETY have?: On its 990 for the year ended December 31, 2025 it reported revenue of $220,085, expenses of $70,602 and total assets of $1,023,612 at year end.

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