3-Cyano-5-(methoxycarbonyl)benzoic acid

3-氰基-5-(甲氧基羰基)苯甲酸

Also known as: 5-Cyanoisophthalic acid monomethyl ester, Methyl 5-cyanoisophthalate, 5-Cyanoisophthalic acid 1-methyl ester, 1,3-Benzenedicarboxylic acid, 5-cyano-, 1-methyl ester, 3-cyano-5-methoxycarbonylbenzoic acid

3-Cyano-5-(methoxycarbonyl)benzoic acid (CAS 126739-90-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H7NO4 and a molecular weight of 205.16700 g/mol. It is also known as 5-Cyanoisophthalic acid monomethyl ester, Methyl 5-cyanoisophthalate and 5-Cyanoisophthalic acid 1-methyl ester. Key properties include a boiling point of 399ºC at 760 mmHg, a density of 1.39g/cm3 and a flash point of 195.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
126739-90-0
Jingsj CID
J-999236-8
Molecular Formula
C10H7NO4
Chinese Name
3-氰基-5-(甲氧基羰基)苯甲酸
Molecular Weight
205.16700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point399ºC at 760 mmHg
Density1.39g/cm3
Flash Point195.1ºC

Frequently Asked Questions

What is the CAS number of 3-Cyano-5-(methoxycarbonyl)benzoic acid?

The CAS number of 3-Cyano-5-(methoxycarbonyl)benzoic acid is 126739-90-0.

What are the molecular formula and molecular weight of 3-Cyano-5-(methoxycarbonyl)benzoic acid?

3-Cyano-5-(methoxycarbonyl)benzoic acid has molecular formula C10H7NO4 and molecular weight 205.16700 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-(methoxycarbonyl)benzoic acid (CAS 126739-90-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-999236-8 (accessed 2026-10-25).

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