Methanethiol
Also known as: Methyl mercaptan, Mercaptomethane, Thiomethanol, Methyl thioalcohol, Methyl sulfhydrate, FEMA 2716, 4Q 1998, MERCAPTAN C1, MFCD00004866, Methanthiol
Methanethiol (CAS 74-93-1) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula CH4S and a molecular weight of 48.10750 g/mol. Key properties include a melting point of −123 °C(lit.), a boiling point of 6 °C(lit.), a density of 0.8665 and a flash point of <71ºC. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 74-93-1
- Jingsj CID
- J-13758-4
- Molecular Formula
- CH4S
- Molecular Weight
- 48.10750 g/mol
- Category
- Alcohols
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −123 °C(lit.) |
|---|---|
| Boiling Point | 6 °C(lit.) |
| Density | 0.8665 |
| Flash Point | <71ºC |
| Exact Mass | 48.00340 |
| PSA | 38.80000 |
| LogP | 0.54600 |
| Additional Property | 1.66 (vs air) |
| Vapor Pressure | 1536 mm Hg ( 20 °C) |
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Methanethiol?
The CAS number of Methanethiol is 74-93-1.
What are the molecular formula and molecular weight of Methanethiol?
Methanethiol has molecular formula CH4S and molecular weight 48.10750 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methanethiol (CAS 74-93-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-13758-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.