A recent post in the PubChem Blog announced the addition of Laboratory Chemical Safety Summaries for over 3000 compounds found in the PubChem database. LCCS information is based on the recommendations found in Prudent Practices in the Laboratory: Handling and Management of Chemical Hazards, 2011. “It includes a summary of hazard and safety information for a chemical, such as flammability, toxicity, exposure limits, exposure symptoms, first aid, handling, and clean up.” (PubChem)
The LCSS data from PubChem is freely available, and “can be downloaded as a data stream in bulk or on-demand from the PubChem website.” For more information about LCSS data on PubChem, see their page, About LCSS.