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

5-甲基噁唑-2-甲酸

Also known as: 5-Methyloxazole-2-carboxylic acid, 5-Methyl-2-oxazolecarboxylic acid, 2-Oxazolecarboxylic acid, 5-methyl-, 5-methyl-1,3-oxazole-2-carboxylic acid

5-Methyl-1,3-oxazole-2-carboxylic acid (CAS 45676-69-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H5NO3 and a molecular weight of 127.09800 g/mol. It is also known as 5-Methyloxazole-2-carboxylic acid, 5-Methyl-2-oxazolecarboxylic acid and 2-Oxazolecarboxylic acid, 5-methyl-. Key properties include a boiling point of 288.365ºC at 760 mmHg and a density of 1.348 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
45676-69-5
Jingsj CID
J-1091324-0
Molecular Formula
C5H5NO3
Chinese Name
5-甲基噁唑-2-甲酸
Molecular Weight
127.09800 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point288.365ºC at 760 mmHg
Density1.348 g/cm3

Frequently Asked Questions

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

The CAS number of 5-Methyl-1,3-oxazole-2-carboxylic acid is 45676-69-5.

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

5-Methyl-1,3-oxazole-2-carboxylic acid has molecular formula C5H5NO3 and molecular weight 127.09800 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Methyl-1,3-oxazole-2-carboxylic acid (CAS 45676-69-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1091324-0 (accessed 2026-10-25).

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