The search function can determine the type of search being requested and search accordingly. The following general cases are automatically detected

• Molecular formulas if written with carbon then hydrogen first
• CAS Registry numbers
• 4Chiral catalog numbers
• MDL numbers
• EC numbers

Also you may indicate the following types of searches as follows

• Beilstein Registry Numbers by preceding the number with BRN

Any other text is assumed to be a chmical name. At this time, stereochemical and regiochemical indicators can not be searched. Your search by name will include all isomers.

Wildcards are allowed in the search for chemical names.

• The question mark (?) or underscore (_) characters match any single character.
• The asterisk (*) or percent (%) characters match any number of characters (including zero characters).

Search by entering one or more name fragments. For example:

• To find Carbobenzyloxy protected amino acids, enter "CBZ". (Single-letter terms are ignored so the equivalent search "Z" will fail).
• To find p-nitro-L-phenylalanine, enter "nitrophenylalanine".
• To find chlorinated carboxylic acids enter "chloro acid"

If you are unable to find any compound with our search tool, please email us with the details of your search and we will improve it.

At this time, equipment, supplies, and books can not be searched. Please contact us to inquire after these items. At this time, hits are not sorted by quality.