2-Methyl-1-propanethiol
Also known as: Isobutyl mercaptan, Isobutanethiol, 2-Methylpropane-1-thiol, Isobutyl thiol, 1-Isobutanethiol, 1-Mercaptoisobutane
2-Methyl-1-propanethiol (CAS 513-44-0) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C4H10S and a molecular weight of 90.187 g/mol. Key properties include a melting point of -145°C, a boiling point of 86.6±8.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of -9.4±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 513-44-0
- Jingsj CID
- J-1316844-0
- Molecular Formula
- C4H10S
- Molecular Weight
- 90.187 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -145°C |
|---|---|
| Boiling Point | 86.6±8.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | -9.4±0.0 °C |
| Exact Mass | 90.050323 |
| PSA | 38.80000 |
| LogP | 2.13 |
| Additional Property | 3.1 (vs air) |
| Vapor Pressure | 74.1±0.2 mmHg at 25°C |
| Refractive Index | 1.435 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 2-Methyl-1-propanethiol?
The CAS number of 2-Methyl-1-propanethiol is 513-44-0.
What are the molecular formula and molecular weight of 2-Methyl-1-propanethiol?
2-Methyl-1-propanethiol has molecular formula C4H10S and molecular weight 90.187 g/mol.
Is 2-Methyl-1-propanethiol hazardous?
2-Methyl-1-propanethiol has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 2-Methyl-1-propanethiol?
For 2-Methyl-1-propanethiol, Upstream Products: 2-Methyl-1-propanol, Diisobutyl disulfide, hydrogen sulfide; Downstream Products: Isobutanesulfonyl chloride, S-(2-Methylpropyl) carbonochloridothioate, Diisobutyl sulfide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Methyl-1-propanethiol (CAS 513-44-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1316844-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.