3,9-Dibromobenzanthrone

Also known as: 3,9-dibromo-7H-benzo[de]anthracen-7-one, 3,9-dibromo-7H-benz(de)anthracen-7-one, 2,7-dibromomesobenzanthrone, 3,9-dibrombenzanthrone, 6-Bz-1-dibrombenzanthron, Dibromobenzanthrone, 3,9-dibromobenzo[a]phenalen-7-one, 3,9-dibromobenzo[b]phenalen-7-one

3,9-Dibromobenzanthrone (CAS 81-98-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C17H8Br2O and a molecular weight of 388.05300 g/mol. Key properties include a melting point of 255-256ºC, a boiling point of 535.5ºC at 760 mmHg, a density of 1.836g/cm3 and a flash point of 178.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 81-98-1
Jingsj CID: J-1516722-3
Molecular Formula: C₁₇H₈Br₂O
Molecular Weight: 388.05300 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	255-256ºC
Boiling Point	535.5ºC at 760 mmHg
Density	1.836g/cm3
Flash Point	178.2ºC
Exact Mass	385.89400
PSA	17.07000
LogP	5.57620
Refractive Index	1.762

Customs & Trade Information

HS Code	2914700090
Summary	HS: 2914700090 halogenated, sulphonated, nitrated or nitrosated derivatives of ketones and quinones, whether or not with other oxygen function Tax rebate rate:9.0% Supervision conditions:none VAT:17.0% MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3,9-Dibromobenzanthrone?

The CAS number of 3,9-Dibromobenzanthrone is 81-98-1.

What are the molecular formula and molecular weight of 3,9-Dibromobenzanthrone?

3,9-Dibromobenzanthrone has molecular formula C17H8Br2O and molecular weight 388.05300 g/mol.

What are the upstream and downstream products of 3,9-Dibromobenzanthrone?

For 3,9-Dibromobenzanthrone, Upstream Products: Benzanthrone, 3-Bromobenzanthrone, Methyl 5-bromo-2-iodobenzoate; Downstream Products: Isoviolanthrone.

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. "3,9-Dibromobenzanthrone (CAS 81-98-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516722-3 (accessed 2026-11-09).

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