3',4'-Dimethyl-[1,1'-biphenyl]-3-carboxylic acid

3',4'-二甲基-[1,1'-联苯]-3-羧酸

Also known as: 3',4'-Dimethylbiphenyl-3-carboxylic acid, 3-(3,4-Dimethylphenyl)benzoic acid, 3,4-Dimethylbiphenyl-3-carboxylic acid, 3',4'-Dimethyl-biphenyl-3-carboxylic acid, 3',4'-Dimethyl[1,1'-biphenyl]-3-carboxylic acid

3',4'-Dimethyl-[1,1'-biphenyl]-3-carboxylic acid (CAS 728919-21-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H14O2 and a molecular weight of 226.27000 g/mol. It is also known as 3',4'-Dimethylbiphenyl-3-carboxylic acid, 3-(3,4-Dimethylphenyl)benzoic acid and 3,4-Dimethylbiphenyl-3-carboxylic acid. Key properties include a boiling point of 406.8ºC at 760 mmHg and a flash point of 186.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 728919-21-9
Jingsj CID: J-940119-4
Molecular Formula: C₁₅H₁₄O₂
Chinese Name: 3',4'-二甲基-[1,1'-联苯]-3-羧酸
Molecular Weight: 226.27000 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	406.8ºC at 760 mmHg
Flash Point	186.7ºC

Frequently Asked Questions

What is the CAS number of 3',4'-Dimethyl-[1,1'-biphenyl]-3-carboxylic acid?

The CAS number of 3',4'-Dimethyl-[1,1'-biphenyl]-3-carboxylic acid is 728919-21-9.

What are the molecular formula and molecular weight of 3',4'-Dimethyl-[1,1'-biphenyl]-3-carboxylic acid?

3',4'-Dimethyl-[1,1'-biphenyl]-3-carboxylic acid has molecular formula C15H14O2 and molecular weight 226.27000 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "3',4'-Dimethyl-[1,1'-biphenyl]-3-carboxylic acid (CAS 728919-21-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-940119-4 (accessed 2026-10-24).

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