CAS Registry Number

CAS 59-52-9 — 2,3-Dimercapto-1-propanol

2,3-Dimercapto-1-propanol (BAL, British Anti-Lewisite) is a thiol-based chelating agent primarily used as an antidote for heavy metal poisoning, particularly arsenic, mercury, and gold. It rapidly binds and neutralizes toxic metals, preventing their accumulation in the body. This clear liquid has a strong odor and is soluble in water and organic solvents. CAS: 59-52-9 | Molecular formula: C₃H₈OS₂ | Molecular weight: 124.225 g/mol | Storage: Ambient (stable under normal conditions) | Signal word: None. Molekula supplies 2,3-Dimercapto-1-propanol from research to bulk quantities with full documentation and ISO 9001:2015 traceability.