Methyl 5-phenylisoxazole-3-carboxylate
Also known as: 3-Isoxazolecarboxylic acid, 5-phenyl-, methyl ester, Methyl 5-phenyl-1,2-oxazole-3-carboxylate, Methyl 5-phenyl-3-isoxazolecarboxylate, 3-(Methoxycarbonyl)-5-phenylisoxazole
Methyl 5-phenylisoxazole-3-carboxylate (CAS 51677-09-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H9NO3 and a molecular weight of 203.194 g/mol. Key properties include a melting point of 81ºC, a boiling point of 370.2±30.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 177.7±24.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 51677-09-9
- Jingsj CID
- J-1439062-6
- Molecular Formula
- C11H9NO3
- Molecular Weight
- 203.194 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 81ºC |
|---|---|
| Boiling Point | 370.2±30.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 177.7±24.6 °C |
| Exact Mass | 203.058243 |
| PSA | 52.33000 |
| LogP | 2.41 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.541 |
| 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 Methyl 5-phenylisoxazole-3-carboxylate?
The CAS number of Methyl 5-phenylisoxazole-3-carboxylate is 51677-09-9.
What are the molecular formula and molecular weight of Methyl 5-phenylisoxazole-3-carboxylate?
Methyl 5-phenylisoxazole-3-carboxylate has molecular formula C11H9NO3 and molecular weight 203.194 g/mol.
What are the upstream and downstream products of Methyl 5-phenylisoxazole-3-carboxylate?
For Methyl 5-phenylisoxazole-3-carboxylate, Upstream Products: Methyl 2,4-dioxo-4-phenylbutanoate, Phenylacetylene, 5-Phenyl-1,2-oxazole-3-carboxylic acid; Downstream Products: 5-Phenyl-3-isoxazolecarboxamide, 5-Phenylisoxazole-3-carbaldehyde, 5-Phenyl-1,2-oxazole-3-carboxylic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl 5-phenylisoxazole-3-carboxylate (CAS 51677-09-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1439062-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.