ChemKey Search
Organic synthetic method database with thousands of references. Free demo and ordering information available.
http://euch6f.chem.emory.edu/
Ecdybase (The Ecdysone Handbook)
A free online ecdysteroids database. Includes ecdysteroid containing products catalogue.
http://ecdybase.org/
MDL Information Systems GmbH
Official homepage of the database provider. Contains client software, manuals and links relevant to the CrossFire database.
http://www.beilstein.com/
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.
http://www.colby.edu/chemistry/cmp/cmp.html
Physiochemical Properties of Popular Liquids
Physical properties of over seventy popular solvents and liquids. Sort in ascending or descending order of the desired criteria.
http://www.trimen.pl/witek/ciecze/liquids.html