2‑Mercaptobenzothiazole (CAS No. 149‑30‑4; formula C₇H₅NS₂; MW ≈ 167.25 g/mol) is a white to yellow crystalline powder with typically 94–97% purity. It melts around 178–183 °C, is poorly soluble in water, but dissolves in acetone and ethanol. It serves as a versatile industrial reagent