ACS Program and Abstract Creation System (PACS) 

Please use your ACS ID to log in to the Program and Abstract Creation System. Use this system to view, modify, or withdraw an abstract or preprint, download a visa letter for ACS National Meetings, and carry out your tasks as program chair or symposium organizer.

Visit the PACS Resource Page for training resources.

Please send questions or comments to

More about ACS IDs

What is an ACS ID?
The ACS ID is a single set of log-in credentials (i.e., user name and password) used to access multiple ACS online products, including:

  • ACS Publications journals
  • C&EN Online
  • ACS Network

How do I get an ACS ID?
Creating one is free for both members and non-members and will only take a few minutes. Register now.

Questions about ACS IDs?
Contact ACS Member Services by email or phone.

  • 800-333-9511 (US only)
  • 614-447-3776 (outside the US)

Customer Service representatives are available Monday through Friday, except holidays, from 8:30 a.m to 5:00 p.m. ET.


(Not a member? Join ACS)