Sciencemadness Discussion Board

CAS# lookup sites

chemrox - 9-12-2015 at 13:36

Where is the best place to look up CAS by name and/or structure?

AvBaeyer - 9-12-2015 at 18:51

Unfortunately, SciFinder is the only comprehensive look up site for CAS numbers and names/structures. Publications such as the Aldrich Catalog contain an index of CAS numbers for the cataloged compounds. A similar list can be found in the Merck Index. Sometimes entering the number into Google will lead you to a structure or name. Unless you are looking for some really esoteric stuff, this works quite a bit of the time.

If you join the ACS, as a member you get some limited access to SciFinder as part of the membership. You also get a useful number of free downloads from ACS journals.

Hope this helps,

AvB

AvBaeyer - 9-12-2015 at 19:26

I was just "fooling" around on Google with the search term "CAS number index". This turns up a number of places that have indices of CAS numbers. For example, there is an interesting pesticide database:

http://www.alanwood.net/pesticides/index_rn_frame.html

And

http://depth-first.com/articles/2007/05/21/simple-cas-number...

There are plenty more.

AvB

CAS look-up

chemrox - 10-12-2015 at 17:48

I have some scifinder access with my ACS profile but not a whole lot so like to reserve that for a real strong need. Best is to take a course where there's a good library with online access to major chem journals. Thanks again AvBaeyer! You're 4/4.

BromicAcid - 10-12-2015 at 21:02

At work I use Reaxys but at home I just use the Sigma-Aldrich website or Wiki.