3,4-Dihydro-2H-1,4-benzoxazine-2-carboxylic acid

3,4-二氢-2H-1,4-苯并噁嗪-2-羧酸

Also known as: 3,4-dihydro-2H-benzo[1,4]oxazine-2-carboxylic acid, 3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylic acid, (+/-)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylic acid, 2H-1,4-Benzoxazine-2-carboxylic acid, 3,4-dihydro-

3,4-Dihydro-2H-1,4-benzoxazine-2-carboxylic acid (CAS 90563-93-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H9NO3 and a molecular weight of 179.17300 g/mol. It is also known as 3,4-dihydro-2H-benzo[1,4]oxazine-2-carboxylic acid, 3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylic acid and (+/-)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylic acid. Key properties include a melting point of 175-177ºC, a boiling point of 399.7ºC at 760mmHg, a density of 1.321g/cm3 and a flash point of 195.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
90563-93-2
Jingsj CID
J-1524268-8
Molecular Formula
C9H9NO3
Chinese Name
3,4-二氢-2H-1,4-苯并噁嗪-2-羧酸
Molecular Weight
179.17300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point175-177ºC
Boiling Point399.7ºC at 760mmHg
Density1.321g/cm3
Flash Point195.6ºC

Frequently Asked Questions

What is the CAS number of 3,4-Dihydro-2H-1,4-benzoxazine-2-carboxylic acid?

The CAS number of 3,4-Dihydro-2H-1,4-benzoxazine-2-carboxylic acid is 90563-93-2.

What are the molecular formula and molecular weight of 3,4-Dihydro-2H-1,4-benzoxazine-2-carboxylic acid?

3,4-Dihydro-2H-1,4-benzoxazine-2-carboxylic acid has molecular formula C9H9NO3 and molecular weight 179.17300 g/mol.

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

Last updated:

How to cite: Jingsj. "3,4-Dihydro-2H-1,4-benzoxazine-2-carboxylic acid (CAS 90563-93-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1524268-8 (accessed 2026-10-26).

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