Specialty Chemicals Specialty Chemicals 
Hazardous Chemical Database [Akron, USA]
MSDS-SEARCH [MSDS-SEARCH claims to be the most comprehensive single address for free information related to the document known as a Material Safety Data Sheet (MSDS), providing access to over 1,000,000 MSDSs and 1000 links directly to manufacturers in the manufacturers links section.]
Chemical Abstracts Service is the producer of the world's largest and most comprehensive databases of chemical information. (CAS Numbers)
Derwent Patent and Scientific Information Solutions
US Patent and Trademark Office
Thesaurus of Chemical Terms NASA, USA
