3-Oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylic acid

3-氧-3,4-二氢-2H-1,4-苯并恶嗪-6-羧酸

Also known as: 3,4-Dihydro-3-oxo-2H-1,4-benzoxazine-6-carboxylic acid, 3-Oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carboxylic acid, 3-Oxo-3,4-dihydro-2H-benzo[1,4]oxazine-6-carboxylic acid, 3-Oxo-4H-1,4-benzoxazine-6-carboxylic acid, 6-Carboxy-2,3-dihydro-3-oxo-4H-1,4-benzoxazine, TIMTEC-BB SBB005401, BAS 06481766

3-Oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylic acid (CAS 134997-87-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H7NO4 and a molecular weight of 193.156 g/mol. It is also known as 3,4-Dihydro-3-oxo-2H-1,4-benzoxazine-6-carboxylic acid, 3-Oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carboxylic acid and 3-Oxo-3,4-dihydro-2H-benzo[1,4]oxazine-6-carboxylic acid. Key properties include a melting point of 310-314℃, a boiling point of 471.4±45.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 238.9±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

134997-87-8

Jingsj CID

J-1138288-1

Molecular Formula

C₉H₇NO₄

Chinese Name

3-氧-3,4-二氢-2H-1,4-苯并恶嗪-6-羧酸

Molecular Weight

193.156 g/mol

Category

Organic Acids

Last updated

8/21/2026