American Chemical Society

Southern California Section

Pasadena, CA
Tax exemption issued: May 1946
EIN: 95-2270255

Type of Nonprofit

Designated as a 501(c)(3) Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Science and Technology Research Institutes, Services / Professional Societies, Associations (NTEE)

Donations to this organization are tax deductible.

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Organizations with gross receipts of less than $50,000 can file the form 990-N postcard filing, which doesn’t include financial details. All Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2024

Revenue

$97,646

Expenses

$85,723

Net Income

$11,923

Net Assets

$228,245

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$50,898	52.1%
Program Services	$27,937	28.6%
Investment Income	$10,609	10.9%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$0

Assets/Debt
Total Assets	$228,245
Total Liabilities	$0
Net Assets	$228,245

Compensation

Key Employees and Officers	Compensation	Other
Richard Kidd (Chair)	$0	$0
Barbara Belmont (Secretary And Treasurer)	$0	$0
Veronica Jaramillo (Chair-elect)	$0	$0
Edye Udell (Immediate Past Chair)	$0	$0
Katherine Van Heuvelen (Member At Large)	$0	$0

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990-EZ

Filed on Nov. 11, 2025

Short form tax return for a nonprofit’s activities, finances, and governance

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Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2023

Revenue

$46,116

Expenses

$53,828

Net Income

-$7,712

Net Assets

$194,724

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$5,750	12.5%
Program Services	$27,764	60.2%
Investment Income	$3,004	6.5%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$0

Assets/Debt
Total Assets	$194,724
Total Liabilities	$0
Net Assets	$194,724

Compensation

Key Employees and Officers	Compensation	Other
Edie Udell (Chair)	$0	$0
Barbara Belmont (Secretary And Treasurer)	$0	$0
Richard Kidd (Chair-elect And Member At Large)	$0	$0
Thomas Mathew (Immediate Past Chair)	$0	$0
Inessa Bychinskaya (Member At Large)	$0	$0
Laurie Barge (Member At Large)	$0	$0

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990-EZ

Filed on Nov. 12, 2024

Short form tax return for a nonprofit’s activities, finances, and governance

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Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2022

Revenue

$50,030

Expenses

$56,863

Net Income

-$6,833

Net Assets

$183,660

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$4,688	9.4%
Program Services	$30,687	61.3%
Investment Income	$2,227	4.5%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$50	0.1%

Assets/Debt
Total Assets	$183,660
Total Liabilities	$0
Net Assets	$183,660

Compensation

Key Employees and Officers	Compensation	Other
Thomas Mathew (Chair)	$0	$0
Edye Udell (Chair-elect And Member At Large)	$0	$0
Barbara Belmont (Secretary Treasurer)	$0	$0
Alexandra Aloia (Member At Large)	$0	$0
Drek Marin (Member At Large)	$0	$0

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990-EZ

Filed on Nov. 7, 2023

Short form tax return for a nonprofit’s activities, finances, and governance

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Schedules ▼

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Fiscal Year Ending Dec.
2021

Revenue

$80,835

Expenses

$43,772

Net Income

$37,063

Net Assets

$211,371

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$6,784	8.4%
Program Services	$44,765	55.4%
Investment Income	$17,709	21.9%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$32	0.0%

Assets/Debt
Total Assets	$211,371
Total Liabilities	$0
Net Assets	$211,371

Compensation

Key Employees and Officers	Compensation	Other
Thomas Mathew (Chair)	$0	$0
Edye Udell (Chair-elect)	$0	$0
Brian Brady (Immediate Past-chair)	$0	$0
Barbara Belmont (Secretary Treasurer)	$0	$0

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990-EZ

Filed on Nov. 15, 2022

Short form tax return for a nonprofit’s activities, finances, and governance

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Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2020

Revenue

$64,047

Expenses

$59,897

Net Income

$4,150

Net Assets

$172,059

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$30	0.0%
Program Services	$48,095	75.1%
Investment Income	$3,019	4.7%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$363	0.6%

Assets/Debt
Total Assets	$172,059
Total Liabilities	$0
Net Assets	$172,059

Compensation

Key Employees and Officers	Compensation	Other
Brian Brady (Chair)	$0	$0
Krishna Kallury (Immediate Past-chair)	$0	$0
Thomas Mathew (Chair-elect)	$0	$0
Barbara Belmont (Secretary/treasurer)	$0	$0

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990-EZ

Filed on Nov. 16, 2021

Short form tax return for a nonprofit’s activities, finances, and governance

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Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2019

Revenue

$81,200

Expenses

$82,161

Net Income

-$961

Net Assets

$158,368

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$18,821	23.2%
Program Services	$38,180	47.0%
Investment Income	$39	0.0%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$11,153	13.7%

Assets/Debt
Total Assets	$159,102
Total Liabilities	$734
Net Assets	$158,368

Compensation

Key Employees and Officers	Compensation	Other
Krishna Kallury (Chair)	$0	$0
Brian Brady (Chair-elect)	$0	$0
Robert De Groot (Immediate Past-chair)	$0	$0
Barbara Belmont (Secretary/treasurer)	$0	$0

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990-EZ

Filed on Nov. 12, 2020

Short form tax return for a nonprofit’s activities, finances, and governance

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2018

Revenue

$90,164

Expenses

$97,643

Net Income

-$7,479

Net Assets

$79,164

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$22,261	24.7%
Program Services	$49,859	55.3%
Investment Income	$86	0.1%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$3,826	4.2%

Assets/Debt
Total Assets	$89,641
Total Liabilities	$10,477
Net Assets	$79,164

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2017

Revenue

$88,742

Expenses

$109,130

Net Income

-$20,388

Net Assets

$86,643

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$30,793	34.7%
Program Services	$19,572	22.1%
Investment Income	$111	0.1%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$3,019	3.4%

Assets/Debt
Total Assets	$97,706
Total Liabilities	$11,063
Net Assets	$86,643

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2016

Revenue

$78,241

Expenses

$84,893

Net Income

-$6,652

Net Assets

$107,032

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$19,560	25.0%
Program Services	$21,608	27.6%
Investment Income	$113	0.1%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$2,578	3.3%

Assets/Debt
Total Assets	$111,514
Total Liabilities	$4,482
Net Assets	$107,032

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2015

Revenue

$78,943

Expenses

$90,817

Net Income

-$11,874

Net Assets

$115,698

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$19,431	24.6%
Program Services	$21,241	26.9%
Investment Income	$199	0.3%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$3,570	4.5%

Assets/Debt
Total Assets	$118,672
Total Liabilities	$2,974
Net Assets	$115,698

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2014

Revenue

$88,333

Expenses

$101,432

Net Income

-$13,099

Net Assets

$127,572

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$27,162	30.7%
Program Services	$22,569	25.5%
Investment Income	$100	0.1%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$3,567	4.0%

Assets/Debt
Total Assets	$129,052
Total Liabilities	$1,480
Net Assets	$127,572

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2013

Revenue

$90,558

Expenses

$93,205

Net Income

-$2,647

Net Assets

$140,500

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$16,719	18.5%
Program Services	$33,008	36.4%
Investment Income	$311	0.3%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$4,889	5.4%

Assets/Debt
Total Assets	$141,790
Total Liabilities	$1,290
Net Assets	$140,500

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2012

Revenue

$96,331

Expenses

$98,001

Net Income

-$1,670

Net Assets

$140,840

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$21,574	22.4%
Program Services	$35,451	36.8%
Investment Income	$476	0.5%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$4,294	4.5%

Assets/Debt
Total Assets	$142,253
Total Liabilities	$1,413
Net Assets	$140,840

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2011

Revenue

$96,683

Expenses

$104,403

Net Income

-$7,720

Net Assets

$142,440

Notable Sources of Revenue		Percent of Total Revenue
Contributions	$31,809	32.9%
Program Services	$23,768	24.6%
Investment Income	$741	0.8%
Net Fundraising	$0
Sales of Assets	$0
Net Inventory Sales	$0
Other Revenue	$5,785	6.0%

Assets/Debt
Total Assets	$144,018
Total Liabilities	$1,578
Net Assets	$142,440

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains financial information from tax returns processed by the IRS since the 2012 calendar years, as well as data extracted from digital filings. IRS summary data also includes limited older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits for nonprofit organizations that spent $750,000 or more in federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Most organizations that have been recognized as tax exempt by the IRS have to file the Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file the Form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard," which does not contain financial details. Churches are not required to file Form 990.

Nonprofit Explorer has organizations that are claiming tax exemption in any of the 27 subsections of the 501(c) section of the tax code. Taxable trusts and private foundations that are required to file a form 990PF are also included.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

Raw filing data. Includes Employer Identification Numbers and summary financials as structured data.
Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica.
Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

API

The data powering this website is available programmatically, via an API. Read the API documentation »

See an issue with the data?

Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

Updated October 22, 2026

American Chemical Society

Organization summary

Type of Nonprofit

Tax Filings by Year

Fiscal Year Ending Dec. 2024

Extracted Financial Data

Extracted Financial Data from 990-EZ

Compensation

Document Links

990-EZ

Fiscal Year Ending Dec. 2023

Extracted Financial Data

Extracted Financial Data from 990-EZ

Compensation

Document Links

990-EZ

Fiscal Year Ending Dec. 2022

Extracted Financial Data

Extracted Financial Data from 990-EZ

Compensation

Document Links

990-EZ

Fiscal Year Ending Dec. 2021

Extracted Financial Data

Extracted Financial Data from 990-EZ

Compensation

Document Links

990-EZ

Fiscal Year Ending Dec. 2020

Extracted Financial Data

Extracted Financial Data from 990-EZ

Compensation

Document Links

990-EZ

Fiscal Year Ending Dec. 2019

Extracted Financial Data

Extracted Financial Data from 990-EZ

Compensation

Document Links

990-EZ

Fiscal Year Ending Dec. 2018

Extracted Financial Data

Extracted Financial Data from 990-EZ

Document Links

990-EZ

Fiscal Year Ending Dec. 2017

Extracted Financial Data

Extracted Financial Data from 990-EZ

Document Links

990-EZ

Fiscal Year Ending Dec. 2016

Extracted Financial Data

Extracted Financial Data from 990-EZ

Document Links

990-EZ

Fiscal Year Ending Dec. 2015

Extracted Financial Data

Extracted Financial Data from 990-EZ

Document Links

990-EZ

Fiscal Year Ending Dec. 2014

Extracted Financial Data

Extracted Financial Data from 990-EZ

Document Links

990-EZ

Fiscal Year Ending Dec. 2013

Extracted Financial Data

Extracted Financial Data from 990-EZ

Document Links

990-EZ

Fiscal Year Ending Dec. 2012

Extracted Financial Data

Extracted Financial Data from 990-EZ

Document Links

990-EZ

Fiscal Year Ending Dec. 2011

Extracted Financial Data

Extracted Financial Data from 990-EZ

Document Links

990-EZ

Fiscal Year Ending Dec.
2024

Fiscal Year Ending Dec.
2023

Fiscal Year Ending Dec.
2022

Fiscal Year Ending Dec.
2021

Fiscal Year Ending Dec.
2020

Fiscal Year Ending Dec.
2019

Fiscal Year Ending Dec.
2018

Fiscal Year Ending Dec.
2017

Fiscal Year Ending Dec.
2016

Fiscal Year Ending Dec.
2015

Fiscal Year Ending Dec.
2014

Fiscal Year Ending Dec.
2013

Fiscal Year Ending Dec.
2012

Fiscal Year Ending Dec.
2011

Fiscal Year Ending Dec.
2010

Fiscal Year Ending Dec.
2009

Fiscal Year Ending Dec.
2008

Fiscal Year Ending Dec.
2007

Fiscal Year Ending Dec.
2005

Fiscal Year Ending Dec.
2004

Fiscal Year Ending Dec.
2003

Fiscal Year Ending Dec.
2002

Fiscal Year Ending Dec.
2001