Hours of Availabilty for Chemical Abstracts Online

Chemical Abstracts Online through STN is available for searching only
during the following times (all times given are for Pacific time zone):

Saturday/Monday 10:00 PM Saturday to 5:00 AM Monday
Monday through Thursday 5:00 PM to 5:00 AM the following day
Friday/Saturday 5:00 PM Friday to 7:00 PM Saturday*
*On the first Saturday of each month, STN is only available until
2:00PM

If you cannot get in during these times, the STN International computer
could be down. You may call the Help Desk and/or Customer Service Monday -
Friday from 5:00AM to 5:00PM (Pacific time) at the following numbers:

STN Help Desk 1-800-848-6533 (toll-free in North America only)
Customer Service 1-800-753-4227 (toll free in North America
only)