3-Cyano-5-methylbenzoic acid

3-氰基-5-甲基苯甲酸

Also known as: 3-cyano-5-methyl-benzoic acid, 3-methyl-5-cyanobenzoic acid, 5-cyano-3-methylbenzoic acid, benzoic acid, 3-cyano-5-methyl-

3-Cyano-5-methylbenzoic acid (CAS 78621-81-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H7NO2 and a molecular weight of 161.157 g/mol. It is also known as 3-cyano-5-methyl-benzoic acid, 3-methyl-5-cyanobenzoic acid and 5-cyano-3-methylbenzoic acid. Key properties include a boiling point of 343.0±30.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 161.2±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
78621-81-5
Jingsj CID
J-1422131-4
Molecular Formula
C9H7NO2
Chinese Name
3-氰基-5-甲基苯甲酸
Molecular Weight
161.157 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point343.0±30.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point161.2±24.6 °C

Frequently Asked Questions

What is the CAS number of 3-Cyano-5-methylbenzoic acid?

The CAS number of 3-Cyano-5-methylbenzoic acid is 78621-81-5.

What are the molecular formula and molecular weight of 3-Cyano-5-methylbenzoic acid?

3-Cyano-5-methylbenzoic acid has molecular formula C9H7NO2 and molecular weight 161.157 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Cyano-5-methylbenzoic acid (CAS 78621-81-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1422131-4 (accessed 2026-10-25).

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