3-oxo-1,3-dihydro-2,1-benzoxazole-4-carboxylic acid

3-氧代-1,3-二氢苯并[c]异噁唑-4-羧酸

Also known as: 1,3-dihydro-3-oxo-2,1-benzisoxazole-4-carboxylic acid, 1,3-dihydro-3-oxo-2,1-benzoxazole-4-carboxylic acid, 3-oxo-1,3-dihydrobenzo[c]isoxazole-4-carboxylic acid, 2,1-benzisoxazole-4-carboxylic acid, 1,3-dihydro-3-oxo-

3-oxo-1,3-dihydro-2,1-benzoxazole-4-carboxylic acid (CAS 3096-76-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H5NO4 and a molecular weight of 179.130 g/mol. It is also known as 1,3-dihydro-3-oxo-2,1-benzisoxazole-4-carboxylic acid, 1,3-dihydro-3-oxo-2,1-benzoxazole-4-carboxylic acid and 3-oxo-1,3-dihydrobenzo[c]isoxazole-4-carboxylic acid. Key properties include a melting point of 191 °C(decomp), a boiling point of 403.9±47.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 198.1±29.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3096-76-2
Jingsj CID
J-1502626-2
Molecular Formula
C8H5NO4
Chinese Name
3-氧代-1,3-二氢苯并[c]异噁唑-4-羧酸
Molecular Weight
179.130 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point191 °C(decomp)
Boiling Point403.9±47.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point198.1±29.3 °C

Frequently Asked Questions

What is the CAS number of 3-oxo-1,3-dihydro-2,1-benzoxazole-4-carboxylic acid?

The CAS number of 3-oxo-1,3-dihydro-2,1-benzoxazole-4-carboxylic acid is 3096-76-2.

What are the molecular formula and molecular weight of 3-oxo-1,3-dihydro-2,1-benzoxazole-4-carboxylic acid?

3-oxo-1,3-dihydro-2,1-benzoxazole-4-carboxylic acid has molecular formula C8H5NO4 and molecular weight 179.130 g/mol.

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

Last updated:

How to cite: Jingsj. "3-oxo-1,3-dihydro-2,1-benzoxazole-4-carboxylic acid (CAS 3096-76-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1502626-2 (accessed 2026-10-24).

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