Methanethiol

• CAT Number: M144163
• CAS Number: 74-93-1
• Molecular Formula: CH3SH
• Molecular Weight: 48.103
• Purity: ≥95%
• Synonyms: METHYL MERCAPTAN; Mercaptomethane; Methylmercaptan; Methyl sulfhydrate; Thiomethanol
• Storage: -20°C
• IUPAC Name: methanethiol
• InChI: InChI=1S/CH4S/c1-2/h2H,1H3
• InChIKey: LSDPWZHWYPCBBB-UHFFFAOYSA-N
• SMILES: CS

Methanethiol(CAS: 74-93-1) is an alkanethiol. It has a role as a human metabolite and a Saccharomyces cerevisiae metabolite.

Methyl mercaptan appears as a colorless low-boiling liquid that is denser than water. Very toxic by inhalation. Can be absorbed through the skin. Has a sharp odor, but the sense of smell cannot be relied upon to warn of the presence of vapors at low concentrations. Rate of onset: Immediate Persistence: Minutes to hours Odor threshold: 0.002 ppm Source/use/other hazard: From decayed organic matter – pulp mills, oil refineries; highly flammable; liquid burns/frostbite.

Methyl mercaptan is a colorless gas with a smell like rotten cabbage. It is a natural substance found in the blood, brain, and other tissues of people and animals. It is released from animal feces. It occurs naturally in certain foods, such as some nuts and cheese.Methyl mercaptan is released from decaying organic matter in marshes and is present in the natural gas of certain regions in the United States, in coal tar, and in some crude oils. It is manufactured for use in the plastics industry, in pesticides, and as a jet fuel additive. It is also released as a decay product of wood in pulp mills.