2,5-Dimethylterephthalic acid

Also known as: 1,4-Benzenedicarboxylic acid, 2,5-dimethyl-, 2,5-Dimethyl-1,4-benzenedicarboxylic acid, 2,5-Dimethylterephthalic acid, 2,5-dimethylbenzene-1,4-dicarboxylic acid, DK7280, RARECHEM AL BO 0786

2,5-Dimethylterephthalic acid (CAS 6051-66-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H10O4 and a molecular weight of 194.184 g/mol. Key properties include a boiling point of 386.8±30.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 201.9±21.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 6051-66-7
Jingsj CID: J-4119-0
Molecular Formula: C₁₀H₁₀O₄
Molecular Weight: 194.184 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	386.8±30.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	201.9±21.1 °C
Exact Mass	194.057907
PSA	74.60000
LogP	2.92
Vapor Pressure	0.0±0.9 mmHg at 25°C
Refractive Index	1.592

Customs & Trade Information

HS Code	2917399090
Summary	2917399090 aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2,5-Dimethylterephthalic acid?

The CAS number of 2,5-Dimethylterephthalic acid is 6051-66-7.

What are the molecular formula and molecular weight of 2,5-Dimethylterephthalic acid?

2,5-Dimethylterephthalic acid has molecular formula C10H10O4 and molecular weight 194.184 g/mol.

What are the upstream and downstream products of 2,5-Dimethylterephthalic acid?

For 2,5-Dimethylterephthalic acid, Upstream Products: Carbon dioxide, Potassium benzoate, 1,2,4,5-Tetramethylbenzene; Downstream Products: 1,4-Bis(bromomethyl)-2,5-dimethylbenzene, Maleic anhydride, Pyromellitic dianhydride.

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

Last updated: 8/21/2026

How to cite: Jingsj. "2,5-Dimethylterephthalic acid (CAS 6051-66-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-4119-0 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.