8-hydroxyquinoline-4-carboxylic acid

8-羟基喹啉-4-羧酸

Also known as: 4-Quinolinecarboxylic acid, 8-hydroxy-, 4-carboxy-8-hydroxyquinoline, 8-Hydroxy-4-quinolinecarboxylic acid

8-hydroxyquinoline-4-carboxylic acid (CAS 55698-67-4) 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 4-Quinolinecarboxylic acid, 8-hydroxy-, 4-carboxy-8-hydroxyquinoline and 8-Hydroxy-4-quinolinecarboxylic acid. Key properties include a melting point of 258-259 °C, a boiling point of 426.7ºC at 760mmHg, a density of 1.48g/cm3 and a flash point of 211.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
55698-67-4
Jingsj CID
J-1180195-5
Molecular Formula
C10H7NO3
Chinese Name
8-羟基喹啉-4-羧酸
Molecular Weight
189.16700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point258-259 °C
Boiling Point426.7ºC at 760mmHg
Density1.48g/cm3
Flash Point211.9ºC

Frequently Asked Questions

What is the CAS number of 8-hydroxyquinoline-4-carboxylic acid?

The CAS number of 8-hydroxyquinoline-4-carboxylic acid is 55698-67-4.

What are the molecular formula and molecular weight of 8-hydroxyquinoline-4-carboxylic acid?

8-hydroxyquinoline-4-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. "8-hydroxyquinoline-4-carboxylic acid (CAS 55698-67-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1180195-5 (accessed 2026-10-25).

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