A vast, reliable source of critical information on health and safety data, regulatory standards, toxicity, carcinogenicity, and physical properties of over 20,000 chemical substances. * 2,000 completely new chemicals, drugs, and biological agents. * Streamlined toxicity data. * New or additional physical data added for 9,000 entries. * 3 Instant Locator Indexes. * 100,000 domestic and international synonyms. * New European Data. * CAS Registry Numbers for more than 18,000 entries. * 14,000 updated entries. * OSHA, ACGIII, MAK exposure limits. * NIOSH REL workplace air limits. * Carcinogens and reproductive effects. * New advanced safety profiles for handling spills, accidental exposures and fires.|A vast, reliable source of critical information on health and safety data, regulatory standards, toxicity, carcinogenicity, and physical properties of over 20,000 chemical substances. * 2,000 completely new chemicals, drugs, and biological agents. * 14,000 update entries. * New or additional physical data added for 9,000 entries. * CAS Registry Numbers for more than 18,000 entries. * 100,000 domestic and international synonyms. * 3 Instant Locator Indexes. * Streamlined toxicity data. * OSHA, CGIH, MAK exposure limits. * NIOSH REL workplace air limits. * New advanced safety profiles for handling spills, accidental exposures, and fires. * Carcinogens and reproductive effects. * New European Data.