1-ethyl-5-methyl-1H-pyrazole-4-sulfonyl chloride

1-乙基-5-甲基-1H-吡唑-4-磺酰氯

Also known as: 1-ETHYL-5-METHYL-1H-PYRAZOLE-4-SULFONYL CHLORIDE, 1-ethyl-5-methyl-1H-pyrazole-4-sulfonyl chloride(SALTDATA: FREE), 1H-Pyrazole-4-sulfonyl chloride, 1-ethyl-5-methyl-, AKOS B017630, ART-CHEM-BB B017630, ASINEX-REAG BAS 13503518, BB_SC-7534, TIMTEC-BB SBB009411

1-ethyl-5-methyl-1H-pyrazole-4-sulfonyl chloride (CAS 957261-55-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H9ClN2O2S and a molecular weight of 208.66600 g/mol. It is also known as 1-ETHYL-5-METHYL-1H-PYRAZOLE-4-SULFONYL CHLORIDE, 1-ethyl-5-methyl-1H-pyrazole-4-sulfonyl chloride(SALTDATA: FREE) and 1H-Pyrazole-4-sulfonyl chloride, 1-ethyl-5-methyl-. Key properties include a boiling point of 313.5ºC at 760 mmHg, a density of 1.44g/cm3 and a flash point of 143.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
957261-55-1
Jingsj CID
J-993567-9
Molecular Formula
C6H9ClN2O2S
Chinese Name
1-乙基-5-甲基-1H-吡唑-4-磺酰氯
Molecular Weight
208.66600 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point313.5ºC at 760 mmHg
Density1.44g/cm3
Flash Point143.4ºC

Frequently Asked Questions

What is the CAS number of 1-ethyl-5-methyl-1H-pyrazole-4-sulfonyl chloride?

The CAS number of 1-ethyl-5-methyl-1H-pyrazole-4-sulfonyl chloride is 957261-55-1.

What are the molecular formula and molecular weight of 1-ethyl-5-methyl-1H-pyrazole-4-sulfonyl chloride?

1-ethyl-5-methyl-1H-pyrazole-4-sulfonyl chloride has molecular formula C6H9ClN2O2S and molecular weight 208.66600 g/mol.

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

Last updated:

How to cite: Jingsj. "1-ethyl-5-methyl-1H-pyrazole-4-sulfonyl chloride (CAS 957261-55-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-993567-9 (accessed 2026-10-23).

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