Chemicals Search

Search by Structure

The following is a list of publicly available databases which can be searched by structure or substructure.

• ChemIDplus NIH Search
• PubChem NIH
• Zelinsky Online Structure Search
• SigmaAldrich
• TimTec Organic Compounds on eMolecules.com
• ChemSpider Search
• Chemexper.com

Search by CAS

http://webbook.nist.gov/chemistry/cas-ser.html

Subscription Search Services

SciFinder

Databases of Drugs with Known Properties

DrugBank

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