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1-Hexanethiol

Also known as: hexanethiol, Hexyl mercaptan, 1-Mercaptohexane, MCH, n-Hexanethiol, n-Hexylthiol, Hexane-1-thiol, n-Thioheptylalcohol, USAF EK-4628

1-Hexanethiol (CAS 111-31-9) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H14S and a molecular weight of 118.240 g/mol. Key properties include a melting point of -81 °C, a boiling point of 152.3±3.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 20.6±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H302 — Harmful if swallowed and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
111-31-9
Jingsj CID
J-996770-8
Molecular Formula
C6H14S
Molecular Weight
118.240 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-81 °C
Boiling Point152.3±3.0 °C at 760 mmHg
Density0.8±0.1 g/cm3
Flash Point20.6±0.0 °C
Exact Mass118.081619
PSA38.80000
LogP3.37
Vapor Pressure4.5±0.3 mmHg at 25°C
Refractive Index1.446
Additional Propertyinsoluble

GHS Safety & Compliance

Flammable / Acute ToxicitySignal word: Danger
  • H226 — Flammable liquid and vapour
  • H302 — Harmful if swallowed
  • H331 — Toxic if inhaled

Customs & Trade Information

HS Code2930909090
Summary2930909090. 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 1-Hexanethiol?

The CAS number of 1-Hexanethiol is 111-31-9.

What are the molecular formula and molecular weight of 1-Hexanethiol?

1-Hexanethiol has molecular formula C6H14S and molecular weight 118.240 g/mol.

Is 1-Hexanethiol hazardous?

1-Hexanethiol has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H302 — Harmful if swallowed; H331 — Toxic if inhaled.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "1-Hexanethiol (CAS 111-31-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-996770-8 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.