On 10/03/2008, Oldak Quill <oldakquill(a)gmail.com> wrote:
There also seems to be a free look-up independent of
ACS
(
http://webbook.nist.gov/chemistry/cas-ser.html). That said, this page
is footed with "CAS registry numbers are copyrighted by the American
Chemical Society. Redistribution rights for CAS registry numbers are
reserved by the American Chemical Society. "CAS registry" is a
registered trademark of the American Chemical society.".
"Redistribution rights" is probably the key phrase here - without
explicitly saying so, that seems to be the same sort of restriction as
SciFinder places on the user. It just makes the lookup process
no-charge...
--
- Andrew Gray
andrew.gray(a)dunelm.org.uk