How to Login
Our log-in process has changed. Your ACS Member Number will no longer serve as your username and password. ACS members need an ACS ID to access member-only content.
* Subscribers: Click Here to Log In With Your ACS ID
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
Do I have an ACS ID?
If you registered on www.acs.org before Nov. 15, 2011 you can use that user name and password (your ACS ID) to log in.
How do I get an ACS ID?
Creating one is free and will only take a few minutes. Register now.
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 to Friday, except holidays, from 8:30 a.m to 5:00 p.m. ET.
* Access to C&EN Online subscriber content is only available to ACS Members.
Become an ACS Member today.