5-Methyl-1,2,4-oxadiazole-3-carboxylic acid

5-甲基-1,2,4-噁二唑-3-甲酸

Also known as: 1,2,4-Oxadiazole-3-carboxylic acid, 5-methyl-, 5-Methyl-1,2,4-oxadiazol-3-carbonsaeure, 5-Methyl-1,2,4-oxadiazol-3-carboxylic acid, 5-methyl-1,2,4-oxadiazole-3-carboxylic acid

5-Methyl-1,2,4-oxadiazole-3-carboxylic acid (CAS 19703-92-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H4N2O3 and a molecular weight of 128.086 g/mol. It is also known as 1,2,4-Oxadiazole-3-carboxylic acid, 5-methyl-, 5-Methyl-1,2,4-oxadiazol-3-carbonsaeure and 5-Methyl-1,2,4-oxadiazol-3-carboxylic acid. Key properties include a boiling point of 317.9±25.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 146.1±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19703-92-5
Jingsj CID: J-1472609-9
Molecular Formula: C₄H₄N₂O₃
Chinese Name: 5-甲基-1,2,4-噁二唑-3-甲酸
Molecular Weight: 128.086 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	317.9±25.0 °C at 760 mmHg
Density	1.5±0.1 g/cm3
Flash Point	146.1±23.2 °C

Frequently Asked Questions

What is the CAS number of 5-Methyl-1,2,4-oxadiazole-3-carboxylic acid?

The CAS number of 5-Methyl-1,2,4-oxadiazole-3-carboxylic acid is 19703-92-5.

What are the molecular formula and molecular weight of 5-Methyl-1,2,4-oxadiazole-3-carboxylic acid?

5-Methyl-1,2,4-oxadiazole-3-carboxylic acid has molecular formula C4H4N2O3 and molecular weight 128.086 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-Methyl-1,2,4-oxadiazole-3-carboxylic acid (CAS 19703-92-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1472609-9 (accessed 2026-10-24).

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