1-Ethyl-1H-pyrazole-4-sulfonyl chloride

1-乙基-1H-吡唑-4-磺酰氯

Also known as: 1-Ethylpyrazole-4-sulfonyl chloride, 1-ethyl-1H-pyrazole-4-sulfonyl chloride, 1H-Pyrazole-4-sulfonyl chloride, 1-ethyl-, AKOS B017628, ART-CHEM-BB B017628, TIMTEC-BB SBB009409

1-Ethyl-1H-pyrazole-4-sulfonyl chloride (CAS 957514-21-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H7ClN2O2S and a molecular weight of 194.63900 g/mol. It is also known as 1-Ethylpyrazole-4-sulfonyl chloride, 1-ethyl-1H-pyrazole-4-sulfonyl chloride and 1H-Pyrazole-4-sulfonyl chloride, 1-ethyl-. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 957514-21-5
Jingsj CID: J-1073408-3
Molecular Formula: C₅H₇ClN₂O₂S
Chinese Name: 1-乙基-1H-吡唑-4-磺酰氯
Molecular Weight: 194.63900 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 1-Ethyl-1H-pyrazole-4-sulfonyl chloride?

The CAS number of 1-Ethyl-1H-pyrazole-4-sulfonyl chloride is 957514-21-5.

What are the molecular formula and molecular weight of 1-Ethyl-1H-pyrazole-4-sulfonyl chloride?

1-Ethyl-1H-pyrazole-4-sulfonyl chloride has molecular formula C5H7ClN2O2S and molecular weight 194.63900 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. "1-Ethyl-1H-pyrazole-4-sulfonyl chloride (CAS 957514-21-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1073408-3 (accessed 2026-10-23).

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