4-Bromo-1,8-naphthalic anhydride

4-溴-1,8-萘二甲酸酐

Also known as: 4-Bromo-1,8-naphthalenedicarboxylic anhydride, 6-Bromo-1H,3H-naphtho[1,8-cd]pyran-1,3-dione, 6-Bromo-benzo[de]isochromene-1,3-dione, 4-Bromonaphthalic anhydride, 1H,3H-Naphtho[1,8-cd]pyran-1,3-dione, 6-bromo-

4-Bromo-1,8-naphthalic anhydride (CAS 81-86-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H5BrO3 and a molecular weight of 277.070 g/mol. It is also known as 4-Bromo-1,8-naphthalenedicarboxylic anhydride, 6-Bromo-1H,3H-naphtho[1,8-cd]pyran-1,3-dione and 6-Bromo-benzo[de]isochromene-1,3-dione. Key properties include a melting point of 217-219 °C(lit.), a boiling point of 467.2±28.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 236.3±24.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
81-86-7
Jingsj CID
J-1523557-8
Molecular Formula
C12H5BrO3
Chinese Name
4-溴-1,8-萘二甲酸酐
Molecular Weight
277.070 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point217-219 °C(lit.)
Boiling Point467.2±28.0 °C at 760 mmHg
Density1.8±0.1 g/cm3
Flash Point236.3±24.0 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 4-Bromo-1,8-naphthalic anhydride?

The CAS number of 4-Bromo-1,8-naphthalic anhydride is 81-86-7.

What are the molecular formula and molecular weight of 4-Bromo-1,8-naphthalic anhydride?

4-Bromo-1,8-naphthalic anhydride has molecular formula C12H5BrO3 and molecular weight 277.070 g/mol.

Is 4-Bromo-1,8-naphthalic anhydride hazardous?

4-Bromo-1,8-naphthalic anhydride has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "4-Bromo-1,8-naphthalic anhydride (CAS 81-86-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523557-8 (accessed 2026-10-22).

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