2-hydroxyisonicotinic acid

2-羟基异烟酸

Also known as: 2-hydroxypyridine-4-carboxylic acid, 2-hydroxy-4-pyridinecarboxylic acid, 2-hydroxy-isonicotinic acid, 2-oxo-1,2-dihydropyridine-4-carboxylic acid, 4-carboxy-2(1H)-pyridinone, MFCD01318566, RARECHEM AL BO 2291

2-hydroxyisonicotinic acid (CAS 169253-31-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H5NO3 and a molecular weight of 139.10900 g/mol. It is also known as 2-hydroxypyridine-4-carboxylic acid, 2-hydroxy-4-pyridinecarboxylic acid and 2-hydroxy-isonicotinic acid. Key properties include a boiling point of 384ºC at 760 mmHg, a density of 1.451 g/cm3 and a flash point of 186ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
169253-31-0
Jingsj CID
J-1153698-3
Molecular Formula
C6H5NO3
Chinese Name
2-羟基异烟酸
Molecular Weight
139.10900 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point384ºC at 760 mmHg
Density1.451 g/cm3
Flash Point186ºC

Frequently Asked Questions

What is the CAS number of 2-hydroxyisonicotinic acid?

The CAS number of 2-hydroxyisonicotinic acid is 169253-31-0.

What are the molecular formula and molecular weight of 2-hydroxyisonicotinic acid?

2-hydroxyisonicotinic acid has molecular formula C6H5NO3 and molecular weight 139.10900 g/mol.

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

Last updated:

How to cite: Jingsj. "2-hydroxyisonicotinic acid (CAS 169253-31-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1153698-3 (accessed 2026-10-25).

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