Organic Compounds Database - Search the database by melting point, boiling point, index of refraction, molecular weight, formula, UV absorption wavelengths, mass spectral peaks, and/or chemical types.
ChemKey Search - Organic synthetic method database with thousands of references. Free demo and ordering information available.
MDL Information Systems GmbH - Official homepage of the database provider. Contains client software, manuals and links relevant to the CrossFire database.