1-Butanethiol

• CAT Number: M067886
• CAS Number: 109-79-5
• Molecular Formula: C4H10S
• Molecular Weight: 90.18
• Purity: ≥95%
• Storage: -20°C
• IUPAC Name: butane-1-thiol
• InChI: InChI=1S/C4H10S/c1-2-3-4-5/h5H,2-4H2,1H3
• InChIKey: WQAQPCDUOCURKW-UHFFFAOYSA-N
• SMILES: CCCCS

1-Butanethiol（Cat No.:M067886）, also known as butyl mercaptan, is an organosulfur compound with the molecular formula C₄H₁₀S. It is a clear to yellowish liquid with an extremely strong, unpleasant odor, similar to rotten eggs or skunk spray. This compound is used as an odorant in natural gas for leak detection and as an intermediate in chemical synthesis, particularly in the production of pesticides, pharmaceuticals, and rubber additives. It is flammable and volatile, requiring careful storage. Exposure can cause irritation to the skin, eyes, and respiratory tract, and it should be handled with proper protective equipment.