4-Isoxazolecarboxylic acid
Also known as: Isoxazole-4-carboxylic acid, 1,2-Oxazole-4-carboxylic acid, 4-Carboxyisoxazole, 4-Carboxy-1,2-oxazole, ISOXAZOLE-4-CARBOXYLIC ACID, ISOOXAZOLE-4-CARBOXYLIC ACID
4-Isoxazolecarboxylic acid (CAS 6436-62-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H3NO3 and a molecular weight of 113.072 g/mol. Key properties include a boiling point of 321.2±15.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 148.1±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6436-62-0
- Jingsj CID
- J-1375776-1
- Molecular Formula
- C4H3NO3
- Molecular Weight
- 113.072 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 321.2±15.0 °C at 760 mmHg |
|---|---|
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 148.1±20.4 °C |
| Exact Mass | 113.011292 |
| PSA | 63.33000 |
| LogP | -0.24 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.517 |
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 4-Isoxazolecarboxylic acid?
The CAS number of 4-Isoxazolecarboxylic acid is 6436-62-0.
What are the molecular formula and molecular weight of 4-Isoxazolecarboxylic acid?
4-Isoxazolecarboxylic acid has molecular formula C4H3NO3 and molecular weight 113.072 g/mol.
What are the upstream and downstream products of 4-Isoxazolecarboxylic acid?
For 4-Isoxazolecarboxylic acid, Upstream Products: Ethyl isoxazole-4-carboxylate, 4-(Bromomethyl)isoxazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Isoxazolecarboxylic acid (CAS 6436-62-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1375776-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.