5-Fluoro-2-sulfanylbenzoic acid

5-氟-2-巯基苯甲酸

Also known as: 5-Fluoro-2-mercaptobenzoic acid, 5-Fluoro-2-thiobenzoic acid, 5-Fluoro-2-sulfanylbenzoic acid, 5-Fluoro-2-mercaptobenzoic acid, 5-Fluoro-2-sulphanylbenzoic acid, 5-Fluoro-2-thiobenzoic, 5-Fluoro-2-thiobenzoic acid 98%, 5-fluorothiosalicylic acid, Benzoic acid, 5-fluoro-2-mercapto-, MFCD02683508

5-Fluoro-2-sulfanylbenzoic acid (CAS 120121-07-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H5FO2S and a molecular weight of 172.177 g/mol. It is also known as 5-Fluoro-2-mercaptobenzoic acid, 5-Fluoro-2-thiobenzoic acid and 5-Fluoro-2-mercaptobenzoic acid, 5-Fluoro-2-sulphanylbenzoic acid. Key properties include a melting point of 137-142ºC(lit.), a boiling point of 294.1±25.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 131.7±23.2 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
120121-07-5
Jingsj CID
J-19869-3
Molecular Formula
C7H5FO2S
Chinese Name
5-氟-2-巯基苯甲酸
Molecular Weight
172.177 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point137-142ºC(lit.)
Boiling Point294.1±25.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point131.7±23.2 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 5-Fluoro-2-sulfanylbenzoic acid?

The CAS number of 5-Fluoro-2-sulfanylbenzoic acid is 120121-07-5.

What are the molecular formula and molecular weight of 5-Fluoro-2-sulfanylbenzoic acid?

5-Fluoro-2-sulfanylbenzoic acid has molecular formula C7H5FO2S and molecular weight 172.177 g/mol.

Is 5-Fluoro-2-sulfanylbenzoic acid hazardous?

5-Fluoro-2-sulfanylbenzoic acid has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "5-Fluoro-2-sulfanylbenzoic acid (CAS 120121-07-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19869-3 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.