Ethyl 5-(thiophen-2-yl)isoxazole-3-carboxylate
Also known as: Ethyl 5-(2-thienyl)isoxazole-3-carboxylate, Ethyl 5-(thien-2-yl)isoxazole-3-carboxylate, Ethyl 5-thien-2-ylisoxazole-3-carboxylate, Ethyl 5-thiophen-2-yl-1,2-oxazole-3-carboxylate, ethyl 5-(thiophen-2-yl)-1,2-oxazole-3-carboxylate, 5-(Thiophen-2-yl)isoxazole-3-carboxylic acid ethyl ester, AKOS PAO-1404, RARECHEM AL BI 1296
Ethyl 5-(thiophen-2-yl)isoxazole-3-carboxylate (CAS 90924-54-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9NO3S and a molecular weight of 223.24800 g/mol. Key properties include a melting point of 47.5-51.5ºC, a boiling point of 379.7ºC at 760 mmHg, a density of 1.278g/cm3 and a flash point of 183.4ºC. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 90924-54-2
- Jingsj CID
- J-1510565-4
- Molecular Formula
- C10H9NO3S
- Molecular Weight
- 223.24800 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 47.5-51.5ºC |
|---|---|
| Boiling Point | 379.7ºC at 760 mmHg |
| Density | 1.278g/cm3 |
| Flash Point | 183.4ºC |
| Exact Mass | 223.03000 |
| PSA | 80.57000 |
| LogP | 2.57980 |
| Refractive Index | 1.554 |
GHS Safety & Compliance
- H319 — Causes serious eye irritation
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 Ethyl 5-(thiophen-2-yl)isoxazole-3-carboxylate?
The CAS number of Ethyl 5-(thiophen-2-yl)isoxazole-3-carboxylate is 90924-54-2.
What are the molecular formula and molecular weight of Ethyl 5-(thiophen-2-yl)isoxazole-3-carboxylate?
Ethyl 5-(thiophen-2-yl)isoxazole-3-carboxylate has molecular formula C10H9NO3S and molecular weight 223.24800 g/mol.
Is Ethyl 5-(thiophen-2-yl)isoxazole-3-carboxylate hazardous?
Ethyl 5-(thiophen-2-yl)isoxazole-3-carboxylate has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation.
What are the upstream and downstream products of Ethyl 5-(thiophen-2-yl)isoxazole-3-carboxylate?
For Ethyl 5-(thiophen-2-yl)isoxazole-3-carboxylate, Upstream Products: 2-Acetylthiophene, Ethyl 2,4-dioxo-4-(thiophen-2-yl)butanoate, 2-Acetyl-5-bromothiophene; Downstream Products: 5-(2-Thienyl)isoxazole-3-carbaldehyde, [5-(thiophen-2-yl)-1,2-oxazol-3-yl]methanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ethyl 5-(thiophen-2-yl)isoxazole-3-carboxylate (CAS 90924-54-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1510565-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.