5-Phenyl-1,2-oxazole-3-carboxylic acid

5-苯基-3-异噁唑羧酸

Also known as: 5-Phenylisoxazole-3-carboxylic acid, 5-Phenyl-3-isoxazolecarboxylic acid, 5-Phenyl-1,2-oxazole-3-carboxylic acid, 3-Isoxazolecarboxylic acid, 5-phenyl-, 5-phenyl-3-isoxazolecarboxylate, AKOS B019304, ART-CHEM-BB B019304, CHEMBRDG-BB 4401205, MFCD00464221

5-Phenyl-1,2-oxazole-3-carboxylic acid (CAS 14441-90-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H7NO3 and a molecular weight of 189.167 g/mol. It is also known as 5-Phenylisoxazole-3-carboxylic acid, 5-Phenyl-3-isoxazolecarboxylic acid and 3-Isoxazolecarboxylic acid, 5-phenyl-. Key properties include a melting point of 160-164 °C(lit.), a boiling point of 434.7±33.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 216.7±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
14441-90-8
Jingsj CID
J-49071-1
Molecular Formula
C10H7NO3
Chinese Name
5-苯基-3-异噁唑羧酸
Molecular Weight
189.167 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point160-164 °C(lit.)
Boiling Point434.7±33.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point216.7±25.4 °C

Frequently Asked Questions

What is the CAS number of 5-Phenyl-1,2-oxazole-3-carboxylic acid?

The CAS number of 5-Phenyl-1,2-oxazole-3-carboxylic acid is 14441-90-8.

What are the molecular formula and molecular weight of 5-Phenyl-1,2-oxazole-3-carboxylic acid?

5-Phenyl-1,2-oxazole-3-carboxylic acid has molecular formula C10H7NO3 and molecular weight 189.167 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Phenyl-1,2-oxazole-3-carboxylic acid (CAS 14441-90-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49071-1 (accessed 2026-10-22).

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