4-Mercaptobenzoic acid

4-巯基苯甲酸

Also known as: p-Mercaptobenzoic acid, 4-Carboxybenzenethiol, 4-Sulfanylbenzoic acid, Benzoic acid, 4-mercapto-, 4-Thiobenzoic acid, Mercaptobenzoic acid, 4-

4-Mercaptobenzoic acid (CAS 1074-36-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H6O2S and a molecular weight of 154.186 g/mol. It is also known as p-Mercaptobenzoic acid, 4-Carboxybenzenethiol and 4-Sulfanylbenzoic acid. Key properties include a melting point of 215-224 °C(lit.), a boiling point of 314.3±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 143.9±23.2 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1074-36-8
Jingsj CID
J-1990793-8
Molecular Formula
C7H6O2S
Chinese Name
4-巯基苯甲酸
Molecular Weight
154.186 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point215-224 °C(lit.)
Boiling Point314.3±25.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point143.9±23.2 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4-Mercaptobenzoic acid?

The CAS number of 4-Mercaptobenzoic acid is 1074-36-8.

What are the molecular formula and molecular weight of 4-Mercaptobenzoic acid?

4-Mercaptobenzoic acid has molecular formula C7H6O2S and molecular weight 154.186 g/mol.

Is 4-Mercaptobenzoic acid hazardous?

4-Mercaptobenzoic 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. "4-Mercaptobenzoic acid (CAS 1074-36-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990793-8 (accessed 2026-10-22).

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