ChemFinder Searching - An index to chemical information on the Internet, with structures and physical properties, searchable by name, structure, CAS Number, and physical properties.WWW Chemicals - Searchable directory of chemical products, suppliers, and MSDS.
USPTO Web Patent Databases - Freely searchable US Patent full text database, US Patent bibliographic database, AIDS Patent database (a database of the full text and images of selected AIDS-related patents issued by the US, Japanese and European patent offices).
NIST WebBook - NIST site provides chemical and physical property data on over 30,000 compounds (MS, IR, ...).
ChemWeb Conference Diary - Details of hundreds of chemistry related meetings worldwide.
Medline - Huge database of health related issues. Search includes CAS number, very useful if you are looking for toxicity of your compounds. Accessible via ChemWeb on http://www.chemweb.com/databases/medline/display.exe (useful for CAS searches)
Abbreviations of Chemical Compounds - searchable.
Conversion of Units - Database of conversion factors and a conversion calculator.
Esp@cenet - The European Patent Office - Free search of worldwide patents.
ChemExper Chemical Directory - A free service that allows to find a chemical by its molecular formula, IUPAC name, common name, CAS number, catalog number, substructure or physical characteristics. One may also submit data.
Acronym Database Search - Acronyms related to chemistry.
SPECS and BioSPECS B.V. - Provider of synthetic organic compound library's for HTS in vials or plates.
Chemsoc Conference and Events Database - A comprehensive, fully searchable database of events, large and small, around the world. The free online submission form makes it easy for organizers to publicize their events free of charge.
Ecdin Databank - This database is searchable by CAS number, name and chemical formula. A very valuable resource, especially if you are interested in the biological activity and toxicity of a compound.
