March 22 - 26, 2020 | Philadelphia, PA

ACS National Meeting & Expo

Macromolecular Chemistry: The Second Century

Registration is open

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Statement on Coronavirus Disease (COVID-19) Outbreak

ACS is continuing to monitor developments related to the coronavirus disease (COVID-19) outbreak and potential impact on global travel to the Philadelphia national meeting. At present, the Pennsylvania Convention Center and our meeting hotels are all operating normally. Any changes to operating status will be communicated immediately to all registered meeting attendees. If the evolving situation affects your attendance plans, please contact us at, and we will assist you in obtaining a refund.

For the most up-to-date information regarding the virus, please refer to the U.S. Centers for Disease Control and Prevention website.

ACS Action Plan     FAQ

Technical Program 
Now available - the technical program for the Spring 2020 National Meeting is in the Online Planner.

Hotel & Travel
Receive special rates and benefits for booking with ACS.

Exhibit & Sponsor in 2020
See the spaces and sign up now to exhibit at a 2020 National Meeting & Exposition!



Monday, March 23 | 4:00 PM EDT

Learn More


2020 National Award Recipients

American Chemical Society National Awards Recipients for 2020 will be honored at meetings throughout the year.

2020 National Award Winners


The Venue

Pennsylvania Convention Center
1101 Arch Street, Philadelphia, PA 19107

Immerse yourself in America’s spirit in the city where it all began – with iconic landmarks that played a pivotal role in the establishment of the United States of America.

Upcoming National Meeting & Expo

August 16 -20  |  San Franciso, CA

Abstracts Submission

San Francisco
Call for Abstracts
is Now Open