Fisher Scientific -- chemical catalog. Try the Acros Chemical Catalog link on the main page, which seems to have the most MSDS's available. You can also click on the "Fisher Chemical Catalog" icon at the main link and search for your chemical name. If an MSDS is available for your chemical, you will see an MSDS icon to click.
HordeNet (U Akron) Hazardous Chemical Database -- searchable by chemical name, formula, CAS registry number, this database gives chemical hazard information for over 1300 chemicals. The data has been compiled from several publicly available sources.
Materials safety data sheets list from UCSD Environmental Health and Safety Department. Links to several MSDS sites. Also visit the EHS page for additional safety information.
Vermont SIRI MSDS Collection has MSDS's by manufacturer or search for a specific material.
Last updated: 16-Jan-2008