Berlin's Institute of Chemistry maintains the Acronyms and Abbreviations database, which contains more than 12,000 entries geared towards chemistry and spectroscopy. Users need only type in an acronym or abbreviation and...

International Union of Pure and Applied Chemistry documents describing the nomenclature of organic compounds.

From the NIST Physics Laboratory Physical Reference Data Page, this new addition "provides access to the holdings of NIST Physics Laboratory online data organized by element." The index (accessible in frames, no-frames,...

International Programme on Chemical Safety's (IPCS's) INCHEM "consolidates a wide variety of information produced by a number of international bodies whose goal is to assist in the sound management of chemicals [and]...

The Institute for Chemical Research at Kyoto University provides this frequently updated and well-documented database of enzyme reactions. With more than 9,300 entries, the LIGAND Chemical Database includes over 3,700...