5-Methylisoxazole-3-carbonitrile
Also known as: 3-Cyano-5-methylisoxazole, 5-Methyl-3-isoxazolecarbonitrile, 5-Methyl-1,2-oxazole-3-carbonitrile, 5-Methylisoxazol-3-carbonitrile, 3-Isoxazolecarbonitrile, 5-methyl-
5-Methylisoxazole-3-carbonitrile (CAS 57351-99-2) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H4N2O and a molecular weight of 108.09800 g/mol. Key properties include a boiling point of 249.4ºC at 760mmHg, a density of 1.18g/cm3 and a flash point of 104.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 57351-99-2
- Jingsj CID
- J-25231-3
- Molecular Formula
- C5H4N2O
- Molecular Weight
- 108.09800 g/mol
- Category
- Nitrogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 249.4ºC at 760mmHg |
|---|---|
| Density | 1.18g/cm3 |
| Flash Point | 104.6ºC |
| Exact Mass | 108.03200 |
| PSA | 49.82000 |
| LogP | 0.85468 |
| Refractive Index | 1.488 |
| Storage Conditions | 2-8°C |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 5-Methylisoxazole-3-carbonitrile?
The CAS number of 5-Methylisoxazole-3-carbonitrile is 57351-99-2.
What are the molecular formula and molecular weight of 5-Methylisoxazole-3-carbonitrile?
5-Methylisoxazole-3-carbonitrile has molecular formula C5H4N2O and molecular weight 108.09800 g/mol.
What are the upstream and downstream products of 5-Methylisoxazole-3-carbonitrile?
For 5-Methylisoxazole-3-carbonitrile, Upstream Products: 5-Methylisoxazole-3-carboxamide, Ethyl 5-methylisoxazole-3-carboxylate, 5-Methylisoxazole-3-carbonyl chloride; Downstream Products: (5-Methyl-3-isoxazolyl)methylamine, 1-(5-Methylisoxazol-3-yl)ethanone, N'-hydroxy-5-methylisoxazole-3-carboximidamide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Methylisoxazole-3-carbonitrile (CAS 57351-99-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25231-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.