2-Oxo-1,2-dihydroquinoline-6-carboxylic acid

2-氧代-1,2-二氢喹啉-6-羧酸

Also known as: 2-Hydroxyquinoline-6-carboxylic acid, 6-Carboxycarbostyril, 1,2-Dihydro-2-oxo-6-quinolinecarboxylic acid, 2-(1H)-Quinolinon-6-carboxylic acid, 2-oxo-1H-quinoline-6-carboxylic acid, 2-(1H)-QUINOLINONE-6-CARBOXYLIC ACID

2-Oxo-1,2-dihydroquinoline-6-carboxylic acid (CAS 70639-78-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H7NO3 and a molecular weight of 189.16700 g/mol. It is also known as 2-Hydroxyquinoline-6-carboxylic acid, 6-Carboxycarbostyril and 1,2-Dihydro-2-oxo-6-quinolinecarboxylic acid. Key properties include a melting point of >300 °C, a boiling point of 487.694ºC at 760 mmHg, a density of 1.405g/cm3 and a flash point of 248.748ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
70639-78-0
Jingsj CID
J-1353507-4
Molecular Formula
C10H7NO3
Chinese Name
2-氧代-1,2-二氢喹啉-6-羧酸
Molecular Weight
189.16700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point>300 °C
Boiling Point487.694ºC at 760 mmHg
Density1.405g/cm3
Flash Point248.748ºC

Frequently Asked Questions

What is the CAS number of 2-Oxo-1,2-dihydroquinoline-6-carboxylic acid?

The CAS number of 2-Oxo-1,2-dihydroquinoline-6-carboxylic acid is 70639-78-0.

What are the molecular formula and molecular weight of 2-Oxo-1,2-dihydroquinoline-6-carboxylic acid?

2-Oxo-1,2-dihydroquinoline-6-carboxylic acid has molecular formula C10H7NO3 and molecular weight 189.16700 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Oxo-1,2-dihydroquinoline-6-carboxylic acid (CAS 70639-78-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1353507-4 (accessed 2026-10-25).

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