Here is an excerpt from the press release issued by Jim Corning:
"Columbus, Ohio (September 8, 2009) – Chemical Abstracts Service (CAS), a division of the American Chemical Society, announced that on September 7 it recorded the 50 millionth substance in CAS REGISTRY, the world’s most comprehensive and high-quality compendium of publicly disclosed chemical information. The recently registered substance is a novel arylmethylidene heterocycle with analgesic properties. Reaching the 50 million mark so quickly is an indicator of the accelerating pace of scientific knowledge. CAS registered the 40 millionth substance just nine months ago—in contrast, it took 33 years for CAS to register the 10 millionth compound in 1990."
The complete press release may be found at
http://www.cas.org/newsevents/releases/50millionth090809.html
For an up to date count users may consult http://www.cas.org/cgi-bin/cas/regreport.pl
Most substances (80%?) have appeared in the literature only once.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment