1,2-dihydro-4-hydroxy-2-oxo-3-pyridinecarboxylic acid

1,2-二氢-4-羟基-2-氧代-3-吡啶羧酸

Also known as: 1,2-dihydro-4-hydroxy-2-oxo-pyridin-3-carboxylic acid, 4-hydroxy-2-oxo-1,2-dihydropyridine-3-carboxylic acid, 4-hydroxy-2-oxo-1H-pyridine-3-carboxylic acid, 2,4-dihydroxynicotinic acid

1,2-dihydro-4-hydroxy-2-oxo-3-pyridinecarboxylic acid (CAS 856214-16-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5NO4 and a molecular weight of 155.10800 g/mol. It is also known as 1,2-dihydro-4-hydroxy-2-oxo-pyridin-3-carboxylic acid, 4-hydroxy-2-oxo-1,2-dihydropyridine-3-carboxylic acid and 4-hydroxy-2-oxo-1H-pyridine-3-carboxylic acid. Key properties include a boiling point of 370.878ºC at 760 mmHg, a density of 1.708g/cm3 and a flash point of 178.101ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

856214-16-9

Jingsj CID

J-1115598-0

Molecular Formula

C₆H₅NO₄

Chinese Name

1,2-二氢-4-羟基-2-氧代-3-吡啶羧酸

Molecular Weight

155.10800 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026