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4-Bromoisophthalic acid

Also known as: 4-Bromo-1,3-benzenedicarboxylic acid, 1,3-Benzenedicarboxylic acid, 4-bromo-, 1,3-Dicarboxy-4-bromobenzene, 2-Bromobenzene-1,5-dicarboxylic acid, 4-bromobenzene-1,3-dicarboxylic acid, 4-bromo-3-benzenedicarboxylic acid, NSC 38770

4-Bromoisophthalic acid (CAS 6939-93-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H5BrO4 and a molecular weight of 245.027 g/mol. Key properties include a melting point of 297-299 °C(lit.), a boiling point of 430.6±40.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 214.2±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6939-93-1
Jingsj CID
J-22039-3
Molecular Formula
C8H5BrO4
Molecular Weight
245.027 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point297-299 °C(lit.)
Boiling Point430.6±40.0 °C at 760 mmHg
Density1.9±0.1 g/cm3
Flash Point214.2±27.3 °C
Exact Mass243.937119
PSA74.60000
LogP2.11
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.652

Customs & Trade Information

HS Code2917399090
Summary2917399090 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 4-Bromoisophthalic acid?

The CAS number of 4-Bromoisophthalic acid is 6939-93-1.

What are the molecular formula and molecular weight of 4-Bromoisophthalic acid?

4-Bromoisophthalic acid has molecular formula C8H5BrO4 and molecular weight 245.027 g/mol.

What are the upstream and downstream products of 4-Bromoisophthalic acid?

For 4-Bromoisophthalic acid, Upstream Products: 1-Bromo-2,4-dimethylbenzene, 4-Bromobenzoic acid, 1-(4-Bromo-3-methylphenyl)ethanone; Downstream Products: 9-oxo-9H-xanthene-2-carboxylic acid, Dimethyl 4-aminoisophthalate, 4-Hydroxyisophthalic acid.

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

Last updated:

How to cite: Jingsj. "4-Bromoisophthalic acid (CAS 6939-93-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22039-3 (accessed 2026-11-09).

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