The following sites are not maintained by Columbia University but may be useful sources of MSDS´s and chemical information.  Please call the EH&S office if you have any questions regarding the information provided.

ATSDR Fact Sheets - Agency for Toxic Substances and Disease Registry Fact Sheets provided by the Oklahoma State Department of Environmental Health and Safety Online Safety Library.
Chem Finder.comSearch the Internet for chemical information using this search engine.
Chemical Fact Sheets -  Chemical information provided by EPA´s Office of Pollution Prevention and Toxins.
EXTONET - Search this database for information on pesticides (Pesticide Information Profiles).
Health Canada´s Office of Biosafety - MSDS's for infectious substances from Health Canada's Office of Biosafety.
HHMI - Laboratory Chemical Safety Summaries provided by the Howard Hughes Medical Institute.
MSDS Online - Search the Internet for MSDS's.
MSDS-SEARCH - Access to over 1,000,000 MSDS´s and direct links to manufactureres
National Toxicology Program - Chemical Health and Safety data from the National Toxicology Program.
NIH Safety Data Sheets - National Institutes of Health Safety Data Sheets.  Information on chemicals typically used in  biomedical research laboratories. 
NIOSH - Pocket Guide to Chemicals provided by the National Institute for Occupational Safety and Health.
NIOSH/OSHA/DOE Health Guidelines- Information about chemicals for
workers and employers provided on OSHA´s website.
University of Oxford - MSDS´s and other chemical safety information provided by Oxford University.
University of Akron - Hazardous Chemical Database from the University of Akron's Department of Chemistry.