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4-Fluorothiophenol

Also known as: 4-Fluorobenzenethiol, 4-Mercaptofluorobenzene, p-Fluorothiophenol, 4-fluorobenzene-1-thiol, Benzenethiol, 4-fluoro-

4-Fluorothiophenol (CAS 371-42-6) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H5FS and a molecular weight of 128.167 g/mol. Key properties include a melting point of 43-46°C, a boiling point of 162.3±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 54.4±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — 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.
371-42-6
Jingsj CID
J-1368841-0
Molecular Formula
C6H5FS
Molecular Weight
128.167 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point43-46°C
Boiling Point162.3±13.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point54.4±0.0 °C
Exact Mass128.009598
PSA38.80000
LogP2.81
Vapor Pressure2.9±0.3 mmHg at 25°C
Refractive Index1.561
Storage ConditionsFlammables area

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning
  • H226 — Flammable liquid and vapour
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

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 4-Fluorothiophenol?

The CAS number of 4-Fluorothiophenol is 371-42-6.

What are the molecular formula and molecular weight of 4-Fluorothiophenol?

4-Fluorothiophenol has molecular formula C6H5FS and molecular weight 128.167 g/mol.

Is 4-Fluorothiophenol hazardous?

4-Fluorothiophenol has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of 4-Fluorothiophenol?

For 4-Fluorothiophenol, Upstream Products: 1-Bromo-4-fluorobenzene, 4-Fluoroiodobenzene, 4-Fluorobenzenesulfonyl chloride; Downstream Products: 4-Fluorophenyl methyl sulfone, 4-Fluoro-N,N-dimethylbenzenesulfonamide, 2-[(4-fluorophenyl)thio]acetic acid.

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

Last updated:

How to cite: Jingsj. "4-Fluorothiophenol (CAS 371-42-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1368841-0 (accessed 2026-11-09).

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