6,8-Dibromo-2-oxo-2H-chromene-3-carboxylic acid

Also known as: 6,8-Dibromocoumarin-3-carboxylic acid, 6,8-DIBROMOCOUMARIN-3-CARBOXYLIC ACID, 6,8-DIBROMO-2-OXO-2H-CHROMENE-3-CARBOXYLIC ACID, 6,8-Dibromo-2-oxo-2H-chromene-3-carboxylic acid, 6,8-Dibromo-2-oxo-2h-chromene-3-carboxylic acid, 6,8-diBrCcaH, AKOS BBS-00004727, IFLAB-BB F0777-0666, MFCD00173735

6,8-Dibromo-2-oxo-2H-chromene-3-carboxylic acid (CAS 3855-87-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H4Br2O4 and a molecular weight of 347.94400 g/mol. Key properties include a melting point of 221ºC, a boiling point of 483.2ºC at 760mmHg, a density of 2.178g/cm3 and a flash point of 246ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 3855-87-6
Jingsj CID: J-1342039-8
Molecular Formula: C₁₀H₄Br₂O₄
Molecular Weight: 347.94400 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	221ºC
Boiling Point	483.2ºC at 760mmHg
Density	2.178g/cm3
Flash Point	246ºC
Exact Mass	345.84800
PSA	67.51000
LogP	3.01620

Customs & Trade Information

HS Code	2932209090
Summary	2932209090. other lactones. 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 6,8-Dibromo-2-oxo-2H-chromene-3-carboxylic acid?

The CAS number of 6,8-Dibromo-2-oxo-2H-chromene-3-carboxylic acid is 3855-87-6.

What are the molecular formula and molecular weight of 6,8-Dibromo-2-oxo-2H-chromene-3-carboxylic acid?

6,8-Dibromo-2-oxo-2H-chromene-3-carboxylic acid has molecular formula C10H4Br2O4 and molecular weight 347.94400 g/mol.

What are the upstream and downstream products of 6,8-Dibromo-2-oxo-2H-chromene-3-carboxylic acid?

For 6,8-Dibromo-2-oxo-2H-chromene-3-carboxylic acid, Upstream Products: Ethyl 6,8-dibromo-2-oxo-2H-chromene-3-carboxylate, Meldrum's acid, 3,5-Dibromosalicylaldehyde.

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. "6,8-Dibromo-2-oxo-2H-chromene-3-carboxylic acid (CAS 3855-87-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1342039-8 (accessed 2026-11-09).

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