March 22 - 26, 2020 | Philadelphia, PA

ACS National Meeting & Expo

Macromolecular Chemistry: The Second Century

Registration is open

Register and become a member to save – all in one place!

ACS will extend early registration pricing to those affected by the recent earthquakes in Puerto Rico. Please contact registration assistance at 508-743-0192 by January 31, 2020.

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!

2020 National Award Recipients

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

The Winners Are


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