2-Butanethiol
Also known as: sec-Butyl mercaptan, sec-Butanethiol, 2-Mercaptobutane, sec-Butyl thiol, Butan-2-thiol, 1-Methyl-1-propanethiol, S-Butanethiol
2-Butanethiol (CAS 513-53-1) 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 -140ºC, 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 21.1±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.
- 513-53-1
- Jingsj CID
- J-9078-8
- 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 | -140ºC |
|---|---|
| Boiling Point | 86.6±8.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 21.1±0.0 °C |
| Exact Mass | 90.050323 |
| PSA | 38.80000 |
| LogP | 2.13 |
| 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-Butanethiol?
The CAS number of 2-Butanethiol is 513-53-1.
What are the molecular formula and molecular weight of 2-Butanethiol?
2-Butanethiol has molecular formula C4H10S and molecular weight 90.187 g/mol.
Is 2-Butanethiol hazardous?
2-Butanethiol 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-Butanethiol?
For 2-Butanethiol, Upstream Products: 2-Bromobutane, 2-butene, Acetylene; Downstream Products: sec-butyl thioisovalerate, di-sec-butyl sulfide, sec-Butyl disulfide.
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-Butanethiol (CAS 513-53-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9078-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.