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3-Hydroxy-2-quinoxalinecarboxylic acid

Also known as: 2-Quinoxalinecarboxylic acid, 3,4-dihydro-3-oxo-, 2-Quinoxalinecarboxylic acid, 3-hydroxy-, 3,4-Dihydro-3-oxo-2-quinoxalinecarboxylic acid, 3,4-Dihydro-3-oxoquinoxaline-2-carboxylic acid, 3-Hydroxyquinoxaline-2-carboxylic acid, 3-Oxo-3,4-dihydroquinoxaline-2-carboxylic acid

3-Hydroxy-2-quinoxalinecarboxylic acid (CAS 1204-75-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H6N2O3 and a molecular weight of 190.156 g/mol. Key properties include a melting point of 267-268ºC(lit.), a boiling point of 432.4±45.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 215.3±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1204-75-7
Jingsj CID
J-47336-9
Molecular Formula
C9H6N2O3
Molecular Weight
190.156 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point267-268ºC(lit.)
Boiling Point432.4±45.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point215.3±28.7 °C
Exact Mass190.037842
PSA83.31000
LogP3.30
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.746

Frequently Asked Questions

What is the CAS number of 3-Hydroxy-2-quinoxalinecarboxylic acid?

The CAS number of 3-Hydroxy-2-quinoxalinecarboxylic acid is 1204-75-7.

What are the molecular formula and molecular weight of 3-Hydroxy-2-quinoxalinecarboxylic acid?

3-Hydroxy-2-quinoxalinecarboxylic acid has molecular formula C9H6N2O3 and molecular weight 190.156 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. "3-Hydroxy-2-quinoxalinecarboxylic acid (CAS 1204-75-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47336-9 (accessed 2026-11-09).

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