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2,5-Dibromoterephthalic acid

Also known as: 1,4-Benzenedicarboxylic acid, 2,5-dibromo-, 2,5-Dibromobenzene-1,4-dicarboxylic acid, 2,5-Dibromoterephthalic Acid, 2,5-dibromoterephthalic acid, 2,5-Dibromoterephtalic acid

2,5-Dibromoterephthalic acid (CAS 13731-82-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H4Br2O4 and a molecular weight of 323.923 g/mol. Key properties include a melting point of 315-318ºC, a boiling point of 445.0±45.0 °C at 760 mmHg, a density of 2.2±0.1 g/cm3 and a flash point of 222.9±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
13731-82-3
Jingsj CID
J-1094761-2
Molecular Formula
C8H4Br2O4
Molecular Weight
323.923 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point315-318ºC
Boiling Point445.0±45.0 °C at 760 mmHg
Density2.2±0.1 g/cm3
Flash Point222.9±28.7 °C
Exact Mass321.847626
PSA74.60000
LogP2.63
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.680
Storage ConditionsRoom temperature.

Customs & Trade Information

HS Code2915900090
Summary2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

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

The CAS number of 2,5-Dibromoterephthalic acid is 13731-82-3.

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

2,5-Dibromoterephthalic acid has molecular formula C8H4Br2O4 and molecular weight 323.923 g/mol.

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

For 2,5-Dibromoterephthalic acid, Upstream Products: 1,4-Dibromo-2,5-dimethylbenzene, 2,5-Dibromo-4-methylbenzoic acid, p-Xylene; Downstream Products: Diethyl 2,5-dibromoterephthalate, dimethyl 2,5-dibromoterephthalate, Pyromellitic diimide.

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

Last updated:

How to cite: Jingsj. "2,5-Dibromoterephthalic acid (CAS 13731-82-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1094761-2 (accessed 2026-11-09).

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