PubChemFree, massive data of chemical information. Searchable by name, CAS-RN, and structures. Each record contains an extensive collection about that information, including safety and toxicity information, extracted from multiple sources (including US and international) like:
- Hazardous Substances Data Bank (NIH)
- ILO-WHO International Chemical Safety Cards (ICSCs)
- CAMEO Chemicals (NOAA)
- Agency for Toxic Substances and Disease Registry (CDC)
- Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Plus resources from the FDA, OSHA, NIOSH, EPA, and DOT.