Isoxazole
Also known as: 1,2-Oxazole, Isoxazol, 1-Oxa-2-azacyclopentadiene, MFCD00003149
Isoxazole (CAS 288-14-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H3NO and a molecular weight of 69.062 g/mol. Key properties include a boiling point of 95.5±9.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 8.9±0.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 288-14-2
- Jingsj CID
- J-12048-9
- Molecular Formula
- C3H3NO
- Molecular Weight
- 69.062 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 95.5±9.0 °C at 760 mmHg |
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| Density | 1.1±0.1 g/cm3 |
| Flash Point | 8.9±0.0 °C |
| Exact Mass | 69.021461 |
| PSA | 26.03000 |
| LogP | 0.08 |
| Additional Property | 2.4 (vs air) |
| Vapor Pressure | 51.7±0.2 mmHg at 25°C |
| Refractive Index | 1.422 |
| Storage Conditions | Store at RT. |
Activity & Biological Data
| Additional Information | [1]. Zhu J, et al. The recent progress of isoxazole in medicinal chemistry. Bioorg Med Chem. 2018 Jul 23;26(12):3065-3075. [2]. Sysak A, et al. Isoxazole ring as a useful scaffold in a search for new therapeutic agents. Eur J Med Chem. 2017 Sep 8;137:292-309. |
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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 Isoxazole?
The CAS number of Isoxazole is 288-14-2.
What are the molecular formula and molecular weight of Isoxazole?
Isoxazole has molecular formula C3H3NO and molecular weight 69.062 g/mol.
What are the upstream and downstream products of Isoxazole?
For Isoxazole, Upstream Products: 1,1,3,3-Tetraethoxypropane, Acetylene, Propiolaldehyde; Downstream Products: 1-(4-Nitrophenyl)-1H-pyrazole, ketene, 4-Bromoisoxazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Isoxazole (CAS 288-14-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12048-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.