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2-Hydroxyquinoline-4-carboxylic acid

Also known as: 2-HYDROXY-4-QUINOLINECARBOXYLIC ACID, 2-HYDROXYCINCHONINIC ACID, 1,2-DIHYDRO-2-OXOQUINOLINE-4-CARBOXYLIC ACID, 2-OXO-1,2-DIHYDROQUINOLINE-4-CARBOXYLIC ACID, 2-OXO-1H-QUINOLINE-4-CARBOXYLIC ACID, 4-QUINOLINECARBOXYLIC ACID, 1,2-DIHYDRO-2-OXO-, 4-QUINOLINECARBOXYLIC ACID, 2-HYDROXY-, AKOS AUF0188, IFLAB-BB F1918-0080, RARECHEM AQ NN 0221

2-Hydroxyquinoline-4-carboxylic acid (CAS 15733-89-8) 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 189.167 g/mol. Key properties include a melting point of >300ºC, a boiling point of 473.6±30.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 240.2±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
15733-89-8
Jingsj CID
J-1991907-4
Molecular Formula
C10H7NO3
Molecular Weight
189.167 g/mol
Category
Pharma Intermediates
Last updated
11/3/2026
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Physicochemical Properties

Melting Point>300ºC
Boiling Point473.6±30.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point240.2±24.6 °C
Exact Mass189.042587
PSA70.42000
LogP2.19
Vapor Pressure0.0±1.2 mmHg at 25°C
Refractive Index1.730

Customs & Trade Information

HS Code2933499090
Summary2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. 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 2-Hydroxyquinoline-4-carboxylic acid?

The CAS number of 2-Hydroxyquinoline-4-carboxylic acid is 15733-89-8.

What are the molecular formula and molecular weight of 2-Hydroxyquinoline-4-carboxylic acid?

2-Hydroxyquinoline-4-carboxylic acid has molecular formula C10H7NO3 and molecular weight 189.167 g/mol.

What are the upstream and downstream products of 2-Hydroxyquinoline-4-carboxylic acid?

For 2-Hydroxyquinoline-4-carboxylic acid, Upstream Products: Malonic acid, isatin, 1-Acetyl-1H-indole-2,3-dione; Downstream Products: Quinoline-4-carboxylic acid, 2-Chloro-N-[2-(diethylamino)ethyl]-4-quinolinecarboxamide, 2-Chloroquinolin-4-amine.

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

Last updated:

How to cite: Jingsj. "2-Hydroxyquinoline-4-carboxylic acid (CAS 15733-89-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991907-4 (accessed 2026-11-09).

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