What are Material Safety Data Sheets (MSDS) and whom are they meant for?
Occupational Health and Safety Assessment Specification (OHSAH) MSDS Database
All sheets are less than three years old and are Workplace Hazardous Materials Information System (WHMIS)-compliant PDF files. Handy pop-ups in the results include additional information. Search by product and/or manufacturer.
Environmental Defense Fund free searchable database. These are not MSDS, but return data on human health hazards, risk assessment values, rankings, uses, environmental release information, and regulatory coverage.
Envirofacts Chemical Databases - US Environmental Protection Agency (EPA)
Search US EPA information by name or CAS number. These are not MSDS but may contain useful safety and environmental information. Approximately 320 sheets are EPA—the rest are links to other sites in this section such as Scorecard (above).
Occupational Safety and Health Administration (OSHA)
The National Institute for Occupational Safety and Health (NIOSH)