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Coumarin-3-carboxylic acid

Also known as: 2-oxochromene-3-carboxylic acid, 2H-1-Benzopyran-3-carboxylic acid, 2-oxo-, AKOS BC-1493, AURORA 2057, CUMARIN-3-CARBOXYLIC ACID, EINECS 208-518-0, MFCD00006852, OTAVA-BB BB0125160098, RARECHEM AB KA K006

Coumarin-3-carboxylic acid (CAS 531-81-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H6O4 and a molecular weight of 190.15200 g/mol. Key properties include a melting point of 189-192 °C(lit.), a boiling point of 388.6ºC at 760mmHg, a density of 1.493g/cm3 and a flash point of 162.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
531-81-7
Jingsj CID
J-2614-2
Molecular Formula
C10H6O4
Molecular Weight
190.15200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point189-192 °C(lit.)
Boiling Point388.6ºC at 760mmHg
Density1.493g/cm3
Flash Point162.7ºC
Exact Mass190.02700
PSA67.51000
LogP1.49120
Additional Property13 g/L (37 ºC)

Activity & Biological Data

Additional Information[1]. Aimin Song, et al. A convenient synthesis of coumarin-3-carboxylic acids via Knoevenagel condensation of Meldrum's acid with ortho-hydroxyaryl aldehydes or ketones. Tetrahedron Letters. 2003 Feb;44(9): 1755-1758. [2]. Kostova I, et al. New Samarium(III), Gadolinium(III), and Dysprosium(III) Complexes of Coumarin-3-Carboxylic Acid as Antiproliferative Agents. Met Based Drugs. 2007;2007:15925.

Customs & Trade Information

HS Code2932209090
Summary2932209090. 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 Coumarin-3-carboxylic acid?

The CAS number of Coumarin-3-carboxylic acid is 531-81-7.

What are the molecular formula and molecular weight of Coumarin-3-carboxylic acid?

Coumarin-3-carboxylic acid has molecular formula C10H6O4 and molecular weight 190.15200 g/mol.

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

Last updated:

How to cite: Jingsj. "Coumarin-3-carboxylic acid (CAS 531-81-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-2614-2 (accessed 2026-11-09).

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