ethyl 5-(1H-pyrazol-3-yl)isoxazole-3-carboxylate

5-(1H-吡唑-3-基)异噁唑-3-羧酸乙酯

Also known as: ethyl 5-(1H-pyrazol-5-yl)isoxazole-3-carboxylate, ethyl 5-(1H-pyrazol-5-yl)-1,2-oxazole-3-carboxylate, 3-isoxazolecarboxylic acid, 5-(1H-pyrazol-3-yl)-, ethyl ester, HMS1451B19

ethyl 5-(1H-pyrazol-3-yl)isoxazole-3-carboxylate (CAS 264226-03-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H9N3O3 and a molecular weight of 207.18600 g/mol. It is also known as ethyl 5-(1H-pyrazol-5-yl)isoxazole-3-carboxylate, ethyl 5-(1H-pyrazol-5-yl)-1,2-oxazole-3-carboxylate and 3-isoxazolecarboxylic acid, 5-(1H-pyrazol-3-yl)-, ethyl ester. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 264226-03-1
Jingsj CID: J-1488859-3
Molecular Formula: C₉H₉N₃O₃
Chinese Name: 5-(1H-吡唑-3-基)异噁唑-3-羧酸乙酯
Molecular Weight: 207.18600 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of ethyl 5-(1H-pyrazol-3-yl)isoxazole-3-carboxylate?

The CAS number of ethyl 5-(1H-pyrazol-3-yl)isoxazole-3-carboxylate is 264226-03-1.

What are the molecular formula and molecular weight of ethyl 5-(1H-pyrazol-3-yl)isoxazole-3-carboxylate?

ethyl 5-(1H-pyrazol-3-yl)isoxazole-3-carboxylate has molecular formula C9H9N3O3 and molecular weight 207.18600 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "ethyl 5-(1H-pyrazol-3-yl)isoxazole-3-carboxylate (CAS 264226-03-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1488859-3 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.