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1,2-Benzenedicarboxylic acid, 3,4-dimethoxy-

3,4-二甲氧基邻苯二甲酸

Also known as: 3,4-Dimethoxy-1,2-benzenedicarboxylic acid, 3,4-dimethoxyphthalic acid, Hemipinic acid

1,2-Benzenedicarboxylic acid, 3,4-dimethoxy- (CAS 518-90-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H10O6 and a molecular weight of 226.18300 g/mol. It is also known as 3,4-Dimethoxy-1,2-benzenedicarboxylic acid, 3,4-dimethoxyphthalic acid and Hemipinic acid. Key properties include a boiling point of 396.2ºC at 760mmHg, a density of 1.391g/cm3 and a flash point of 157.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
518-90-1
Jingsj CID
J-1117528-5
Molecular Formula
C10H10O6
Chinese Name
3,4-二甲氧基邻苯二甲酸
Molecular Weight
226.18300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point396.2ºC at 760mmHg
Density1.391g/cm3
Flash Point157.8ºC

Frequently Asked Questions

What is the CAS number of 1,2-Benzenedicarboxylic acid, 3,4-dimethoxy-?

The CAS number of 1,2-Benzenedicarboxylic acid, 3,4-dimethoxy- is 518-90-1.

What are the molecular formula and molecular weight of 1,2-Benzenedicarboxylic acid, 3,4-dimethoxy-?

1,2-Benzenedicarboxylic acid, 3,4-dimethoxy- has molecular formula C10H10O6 and molecular weight 226.18300 g/mol.

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

Last updated:

How to cite: Jingsj. "1,2-Benzenedicarboxylic acid, 3,4-dimethoxy- (CAS 518-90-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1117528-5 (accessed 2026-10-22).

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