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3-Bromophthalic anhydride

Also known as: 4-Bromophthalic anhydride, 4-Bromoisobenzofuran-1,3-dione, 4-Bromo-2-benzofuran-1,3-dione, 5-Bromo-1,3-dihydro-2-benzofuran-1,3-dione, 1,3-Isobenzofurandione, 4-bromo-, EINECS 201-707-9, TIMTEC-BB SBB008534

3-Bromophthalic anhydride (CAS 82-73-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H3BrO3 and a molecular weight of 227.012 g/mol. Key properties include a melting point of 103-105ºC, a boiling point of 363.2±25.0 °C at 760 mmHg, a density of 1.9±0.1 g/cm3 and a flash point of 173.5±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
82-73-5
Jingsj CID
J-22734-9
Molecular Formula
C8H3BrO3
Molecular Weight
227.012 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point103-105ºC
Boiling Point363.2±25.0 °C at 760 mmHg
Density1.9±0.1 g/cm3
Flash Point173.5±23.2 °C
Exact Mass225.926544
PSA43.37000
LogP2.37
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.651

Customs & Trade Information

HS Code2932999099
Summary2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3-Bromophthalic anhydride?

The CAS number of 3-Bromophthalic anhydride is 82-73-5.

What are the molecular formula and molecular weight of 3-Bromophthalic anhydride?

3-Bromophthalic anhydride has molecular formula C8H3BrO3 and molecular weight 227.012 g/mol.

What are the upstream and downstream products of 3-Bromophthalic anhydride?

For 3-Bromophthalic anhydride, Upstream Products: 3-bromophthalic acid, 2,3-Dimethylphenol, 3-Bromo-o-xylene; Downstream Products: 4-Bromo-2-benzofuran-1(3H)-one.

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

Last updated:

How to cite: Jingsj. "3-Bromophthalic anhydride (CAS 82-73-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22734-9 (accessed 2026-11-09).

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