4-Methylisoxazole-5-carboxylic acid
4-甲基异噁唑-5-羧酸
Also known as: 4-methyl-1,2-oxazole-5-carboxylic acid, 4-methyl-5-isoxazolecarboxylic acid, 5-carboxy-4-methylisoxazole, 5-isoxazolecarboxylic acid, 4-methyl-
4-Methylisoxazole-5-carboxylic acid (CAS 261350-46-3) 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 4-methyl-1,2-oxazole-5-carboxylic acid, 4-methyl-5-isoxazolecarboxylic acid and 5-carboxy-4-methylisoxazole. Key properties include a boiling point of 310ºC, a density of 1.348 and a flash point of 141ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 261350-46-3
- Jingsj CID
- J-1422522-8
- Molecular Formula
- C5H5NO3
- Chinese Name
- 4-甲基异噁唑-5-羧酸
- Molecular Weight
- 127.09800 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 310ºC |
|---|---|
| Density | 1.348 |
| Flash Point | 141ºC |
Frequently Asked Questions
What is the CAS number of 4-Methylisoxazole-5-carboxylic acid?
The CAS number of 4-Methylisoxazole-5-carboxylic acid is 261350-46-3.
What are the molecular formula and molecular weight of 4-Methylisoxazole-5-carboxylic acid?
4-Methylisoxazole-5-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. "4-Methylisoxazole-5-carboxylic acid (CAS 261350-46-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1422522-8 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.