Chemical substructure searching: comparing three commercially available databases Available to Purchase

Three commercially available chemical substructure databases are reviewed: Chemical Abstracts, Index Chemicus, and the SANSS file (Chemical Information System). Coverage and overlap of Chemical Abstracts and Index Chemicus are studied, as well as differences between Chemical Abstracts as mounted by two different vendors (STN International and Questel). Guidelines for determining the database/system of choice are given.