American Chemical Society

St Louis Section
  • Saint Louis, MO
  • Tax exemption issued: May 1946
  • EIN: 43-6049918

Organization summary

Type of Nonprofit

Designated as a 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.

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.
2025

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$58,409
Expenses
$42,600
Net Income
$15,809
Net Assets
$564,221
Notable Sources of Revenue Percent of Total Revenue
Contributions $34,783
59.6%
Program Services $8,720
14.9%
Investment Income $14,892
25.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $14
0.0%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $564,221
Total Liabilities $0
Net Assets $564,221
Compensation
Key Employees and Officers Compensation Related Other
Cristina De Meo (Director) $0 $0 $0
Rhonda Woerndle (Director & Program Committee Chair) $0 $0 $0
John Taylor (Director) $0 $0 $0
Mikhail Berezin (Director & Awards Committee Chair) $0 $0 $0
Sean Dingman (Director) $0 $0 $0
Eric Bruton (Councilor) $0 $0 $0
Donna Friedman (Coucilor) $0 $0 $0
Jeramia Ory (Councilor & Public Relations Committee Chair) $0 $0 $0
James Bashkin (Immediate Past Chair) $0 $0 $0
Sue Wiediger (Education Committee Chair) $0 $0 $0
Brent Znosko (Professional Activities Committee Chair) $0 $0 $0
James O'brien (Director) $0 $0 $0
William Doub (Director) $0 $0 $0
Eden Tesfu (Chair Elect) $0 $0 $0
Brian Kamusinga (Secretary) $0 $0 $0
Paula Miller (Treasurer) $0 $0 $0
Elizabeth Bergman (Chair) $0 $0 $0
+ View more people

Document Links

990
Filed on Sept. 15, 2026

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

View Filing
XML

Fiscal Year Ending Dec.
2024

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$61,899
Expenses
$36,107
Net Income
$25,792
Net Assets
$494,942
Notable Sources of Revenue Percent of Total Revenue
Contributions $43,652
70.5%
Program Services $0
Investment Income $10,312
16.7%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $494,942
Total Liabilities $0
Net Assets $494,942
Compensation
Key Employees and Officers Compensation Other
Jeffrey Cornelius (Treasurer) $0 $0
Bill Doub (Director) $0 $0
Cristina Demeo (Director) $0 $0
Rhonda Woerndle (Director) $0 $0
Mikhail Berezin (Director) $0 $0
John-stephen Taylor (Director) $0 $0
Eric Bruton (Councilor) $0 $0
Donna Friedman (Councilor) $0 $0
James Bashkin (Chair) $0 $0
Tabbetha Bohac (Past Chair) $0 $0
Brian Kamusinga (Secretary) $0 $0
Sean Dingman (Director) $0 $0
Jeramia Ory (Councilor) $0 $0
Elizabeth Bergman (Chair Elect) $0 $0
+ View more people

Document Links

990-EZ
Filed on Nov. 16, 2025

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$41,384
Expenses
$9,159
Net Income
$32,225
Net Assets
$433,261
Notable Sources of Revenue Percent of Total Revenue
Contributions $22,758
55.0%
Program Services $0
Investment Income $10,076
24.3%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $433,261
Total Liabilities $0
Net Assets $433,261
Compensation
Key Employees and Officers Compensation Other
Cynthia Chapple (Past Chair) $0 $0
Jeffrey Cornelius (Treasurer) $0 $0
Bill Doub (Director) $0 $0
Cristina Demeo (Director) $0 $0
Rhonda Woerndle (Director) $0 $0
Mikhail Berezin (Director) $0 $0
John-stephen Taylor (Director) $0 $0
Eric Bruton (Councilor) $0 $0
Donna Friedman (Councilor) $0 $0
James Baskin (Chair Elect) $0 $0
Tabbetha Bohac (Chair) $0 $0
Henry Rohrs (Secretary) $0 $0
Pamela Morrison (Director) $0 $0
Jeramia Ory (Councilor) $0 $0
+ View more people

Document Links

990-EZ
Filed on Nov. 14, 2024

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$35,065
Expenses
$31,157
Net Income
$3,908
Net Assets
$375,819
Notable Sources of Revenue Percent of Total Revenue
Contributions $19,648
56.0%
Program Services $0
Investment Income $5,727
16.3%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $375,819
Total Liabilities $0
Net Assets $375,819
Compensation
Key Employees and Officers Compensation Other
Samina Azad (Past Chair) $0 $0
Jeffrey Cornelius (Treasurer) $0 $0
Bill Doub (Director) $0 $0
Cristina Demeo (Director) $0 $0
Rhonda Woerndle (Director) $0 $0
Mikhail Berezin (Director) $0 $0
John-stephen Taylor (Director) $0 $0
Eric Bruton (Councilor) $0 $0
Donna Friedman (Councilor) $0 $0
Cynthia Chappel (Chair) $0 $0
Tabbetha Bohac (Chair Elect) $0 $0
Henry Rohrs (Secretary) $0 $0
Pamela Morrison (Director) $0 $0
Jeramia Ory (Councilor) $0 $0
+ View more people

Document Links

990-EZ
Filed on Nov. 15, 2023

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$85,438
Expenses
$15,121
Net Income
$70,317
Net Assets
$450,367
Notable Sources of Revenue Percent of Total Revenue
Contributions $28,579
33.4%
Program Services $0
Investment Income $47,024
55.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $450,367
Total Liabilities $0
Net Assets $450,367
Compensation
Key Employees and Officers Compensation Other
Samina Azad (Chair) $0 $0
Sophia Hayes (Past Chair) $0 $0
Henry Rohrs (Secretary) $0 $0
Jeffrey Cornelius (Treasurer) $0 $0
Bill Doub (Director) $0 $0
Cristina Demeo (Director) $0 $0
Rhonda Woerndle (Director) $0 $0
Mikhail Berezin (Director) $0 $0
Keith Stine (Director) $0 $0
John-stephen Taylor (Director) $0 $0
Eric Bruton (Councilor) $0 $0
Lisa Balbes (Councilor) $0 $0
Donna Friedman (Councilor) $0 $0
+ View more people

Document Links

990-EZ
Filed on Nov. 15, 2022

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$122,642
Expenses
$46,736
Net Income
$75,906
Net Assets
$380,050
Notable Sources of Revenue Percent of Total Revenue
Contributions $16,016
13.1%
Program Services $10,585
8.6%
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $1,583
1.3%
Other Revenue $61,321
50.0%
Assets/Debt
Total Assets $380,050
Total Liabilities $0
Net Assets $380,050

No Document Links

The IRS has provided extracted financial data for this filing, but has not yet released the source documents.

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$98,752
Expenses
$65,001
Net Income
$33,751
Net Assets
$333,314
Notable Sources of Revenue Percent of Total Revenue
Contributions $28,970
29.3%
Program Services $0
Investment Income $51,574
52.2%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $7,628
7.7%
Assets/Debt
Total Assets $333,314
Total Liabilities $0
Net Assets $333,314

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$37,145
Expenses
$45,850
Net Income
-$8,705
Net Assets
$299,563
Notable Sources of Revenue Percent of Total Revenue
Contributions $29,662
79.9%
Program Services $0
Investment Income -$11,666
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $7,614
20.5%
Assets/Debt
Total Assets $299,563
Total Liabilities $0
Net Assets $299,563

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$83,558
Expenses
$58,657
Net Income
$24,901
Net Assets
$308,268
Notable Sources of Revenue Percent of Total Revenue
Contributions $29,657
35.5%
Program Services $0
Investment Income $33,044
39.5%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $9,094
10.9%
Assets/Debt
Total Assets $308,268
Total Liabilities $0
Net Assets $308,268

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$73,319
Expenses
$63,413
Net Income
$9,906
Net Assets
$283,367
Notable Sources of Revenue Percent of Total Revenue
Contributions $29,057
39.6%
Program Services $0
Investment Income $20,350
27.8%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $12,252
16.7%
Assets/Debt
Total Assets $283,367
Total Liabilities $0
Net Assets $283,367

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$58,671
Expenses
$52,028
Net Income
$6,643
Net Assets
$273,461
Notable Sources of Revenue Percent of Total Revenue
Contributions $21,244
36.2%
Program Services $0
Investment Income $5,504
9.4%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $18,787
32.0%
Assets/Debt
Total Assets $273,461
Total Liabilities $0
Net Assets $273,461

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$71,340
Expenses
$53,944
Net Income
$17,396
Net Assets
$266,819
Notable Sources of Revenue Percent of Total Revenue
Contributions $27,351
38.3%
Program Services $699
1.0%
Investment Income $18,459
25.9%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $12,466
17.5%
Assets/Debt
Total Assets $266,819
Total Liabilities $0
Net Assets $266,819

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$96,864
Expenses
$59,406
Net Income
$37,458
Net Assets
$249,423
Notable Sources of Revenue Percent of Total Revenue
Contributions $27,531
28.4%
Program Services $1,924
2.0%
Investment Income $21,662
22.4%
Net Fundraising $0
Sales of Assets $20,961
21.6%
Net Inventory Sales $0
Other Revenue $9,309
9.6%
Assets/Debt
Total Assets $249,423
Total Liabilities $0
Net Assets $249,423

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$68,358
Expenses
$50,430
Net Income
$17,928
Net Assets
$211,875
Notable Sources of Revenue Percent of Total Revenue
Contributions $29,377
43.0%
Program Services $11,003
16.1%
Investment Income $6,191
9.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $6,374
9.3%
Assets/Debt
Total Assets $211,875
Total Liabilities $0
Net Assets $211,875

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$72,801
Expenses
$56,930
Net Income
$15,871
Net Assets
$193,947
Notable Sources of Revenue Percent of Total Revenue
Contributions $24,948
34.3%
Program Services $2,563
3.5%
Investment Income $6,332
8.7%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $8,908
12.2%
Assets/Debt
Total Assets $193,947
Total Liabilities $0
Net Assets $193,947

Document Links

990-EZ

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

PDF
PDF (2 of 2)

Fiscal Year Ending Dec.
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2008

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2007

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2006

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

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

PDF
PDF (2 of 2)

Fiscal Year Ending Dec.
2005

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

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

PDF
PDF (2 of 2)

Fiscal Year Ending Dec.
2004

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2003

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2002

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

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

PDF

Fiscal Year Ending Dec.
2001

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

990-EZ

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

PDF

About This Data

What Is This Data?

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 »

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About Nonprofit Explorer

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