| Chemistry name: | mercaptan |
| Hazard: | |
| Aliphatic thiols are flammable. Toxic by inhalation. | |
| Use: | |
| Warning agents in fuel gas lines, chemical intermediates. Note: Adoption of the name thiol to replace mercaptan has been officially approved as more consistent with the molecular constitution of these compounds. The older term, which literally means “mercury seizing,” is inappropriate. | |