Hours:

8 a.m. - 8 p.m. U.S. Eastern Time (Monday - Friday)

Phone:

800-753-4227 (North America)
614-447-3700 (worldwide)

Option 2: General information or account-related questions
Option 3: Assistance with search strategies, database content, or using a product
Option 4: Assistance with software setup, installation, and configuration 

Fax:

614-447-3751

E-mail:

help@cas.org

Mailing Address:
(general correspondence)
CAS
P.O. Box 3012
Columbus, OH 43210-0012
U.S.A.

(overnight packages)
CAS
2540 Olentangy River Road
Columbus, OH 43202
U.S.A.