4-(1-methyl-1H-pyrazol-3-yl)benzenesulfonyl chloride

4-(1-甲基-1H-吡唑-3-基)苯磺酰氯

Also known as: 4-(1-methyl-1H-pyrazol-3-yl)benzenesulfonyl chloride, 4-(1-methyl-1H-pyrazol-3-yl)-benzenesulfonyl chloride, 3-[4-(chlorosulphonyl)phenyl]-1-methyl-1H-pyrazole, 4-(1-methyl-1H-pyrazol-3-yl)benzenesulphonyl chloride, Benzenesulfonyl chloride, 4-(1-methyl-1H-pyrazol-3-yl)-

4-(1-methyl-1H-pyrazol-3-yl)benzenesulfonyl chloride (CAS 916766-81-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9ClN2O2S and a molecular weight of 256.70900 g/mol. It is also known as 4-(1-methyl-1H-pyrazol-3-yl)-benzenesulfonyl chloride, 3-[4-(chlorosulphonyl)phenyl]-1-methyl-1H-pyrazole and 4-(1-methyl-1H-pyrazol-3-yl)benzenesulphonyl chloride. Key properties include a melting point of 89.5-91ºC, a boiling point of 397.1ºC at 760 mmHg and a density of 1.41g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
916766-81-9
Jingsj CID
J-1352461-2
Molecular Formula
C10H9ClN2O2S
Chinese Name
4-(1-甲基-1H-吡唑-3-基)苯磺酰氯
Molecular Weight
256.70900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point89.5-91ºC
Boiling Point397.1ºC at 760 mmHg
Density1.41g/cm3

Frequently Asked Questions

What is the CAS number of 4-(1-methyl-1H-pyrazol-3-yl)benzenesulfonyl chloride?

The CAS number of 4-(1-methyl-1H-pyrazol-3-yl)benzenesulfonyl chloride is 916766-81-9.

What are the molecular formula and molecular weight of 4-(1-methyl-1H-pyrazol-3-yl)benzenesulfonyl chloride?

4-(1-methyl-1H-pyrazol-3-yl)benzenesulfonyl chloride has molecular formula C10H9ClN2O2S and molecular weight 256.70900 g/mol.

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

Last updated:

How to cite: Jingsj. "4-(1-methyl-1H-pyrazol-3-yl)benzenesulfonyl chloride (CAS 916766-81-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1352461-2 (accessed 2026-10-25).

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