| Formula / Notation | CH4S |
|---|---|
| CAS Number | 74-93-1 |
| Molecular Weight | 48.11 |
| Melting Point | -189.4 °F (EPA, 1998) |
| Boiling Point | 42.7 °F at 760 mmHg (EPA, 1998) |
| Density | 0.892 at 42.8 °F (USCG, 1999) - Less dense than water; will float |
| Solubility | 2 % (NIOSH, 2024) |
| Appearance | 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 ... |
| Also Known As | METHYL MERCAPTAN; Methylmercaptan; Mercaptomethane; Thiomethanol; 74-93-1; Thiomethyl alcohol; Methvtiolo; Metilmercaptano; Methylmercaptaan; Mercaptan methylique |
| Category | Organic Compounds |
What is Methanethiol?
Methanethiol is an alkanethiol. It has a role as a Saccharomyces cerevisiae metabolite and a human metabolite.
Formula & Notation
IUPAC Name: methanethiol
Other Names / Synonyms: METHYL MERCAPTAN; Methylmercaptan; Mercaptomethane; Thiomethanol; 74-93-1; Thiomethyl alcohol; Methvtiolo; Metilmercaptano; Methylmercaptaan; Mercaptan methylique
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | -189.4 °F (EPA, 1998) |
| Boiling Point | 42.7 °F at 760 mmHg (EPA, 1998) |
| Density | 0.892 at 42.8 °F (USCG, 1999) - Less dense than water; will float |
| Molecular Weight | 48.11 |
| Solubility | 2 % (NIOSH, 2024) |
| Appearance | 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 ... |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Methanethiol is an alkanethiol. It has a role as a Saccharomyces cerevisiae metabolite and a human metabolite.
Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.
Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.
The formula or notation for Methanethiol is: CH4S