Catalog Structure Search

Welcome to the WWW Chemicals Catalog Structure Search. The future
of chemical information is available to you right now!

Don’t worry about writing correct chemical names, or finding CAS numbers
anymore. Use the universal language of chemistry - structural formula!

Simply draw a structure and search our WWW Chemicals Catalog for it.
If you already have your structure file in any format, it can be used for searching
as well. Click here to search by a structure file.

You don’t have to install any additional programs, Java applets developed by
Anatoli O. Krassavine - the author of ChemSymphony - will do the job.

There are two of them: Prepare Query Here, and Submit.

They will appear on your screen after you click on the above links to our catalog.
Please allow some time for these applets to load. Enjoy your search!

You can also perform structure search the 127,000 3D structure NCI database
by drawing a structure on-line, or by pasting a structure file.