- ChemBank
http://chembank.med.harvard.edu/
Initiative for Chemical Genetics. Freely available collection of data about small molecules (over 2000 compounds) and resources for studying their properties, especially their effects on biology.
- Chemcyclopedia Plus
http://pubs.acs.org/chemcy/
An annual supplement to Chemical & Engineering News (C&EN). Provides users/purchasers of chemicals with trade names, packaging, special shipping requirements, potential applications, and CAS Registry Numbers. Chemicals are listed in categories.
- ChemExpo
http://www.chemexpo.com
News, stock reports, products, directories, classifieds, and profiles of commercially available chemical products; focus reports;
- ChemIDplus
http://chem.sis.nlm.nih.gov/chemidplus/
A free database of 350000 chemical compounds. Records consist of name, synonyms, CAS number, molecular formula, and direct links to biomedical resources. Included also over 100000 structures. Searchable by substructure with free Chime plugin.
- CHEMnetBASE
http://chemnetbase.com
Online access to major chemical reference works from Chapman & Hall/CRC including Combined Chemical Dictionary (CCD), The Handbook of Chemistry & Physics, Polymers: A Property Database, Properties of Organic Compounds.
- EuroSpec
http://www.is-db.org/eurospec/
International spectroscopic data bank and archive project for spectroscopic and associated data, from peer reviewed publications, with link to the chemical abstracts register.
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