1-Methyl-5-thien-2-yl-1H-pyrazole-3-carbonyl chloride

1-甲基-5-噻吩-2-基-1H-吡唑-3-羰酰氯

Also known as: 1-methyl-5-(2-thienyl)pyrazole-3-carbonyl chloride, 1-methyl-5-thiophen-2-ylpyrazole-3-carbonyl chloride, 1H-Pyrazole-3-carbonyl chloride, 1-methyl-5-(2-thienyl)-

1-Methyl-5-thien-2-yl-1H-pyrazole-3-carbonyl chloride (CAS 876316-46-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7ClN2OS and a molecular weight of 226.68300 g/mol. It is also known as 1-methyl-5-(2-thienyl)pyrazole-3-carbonyl chloride, 1-methyl-5-thiophen-2-ylpyrazole-3-carbonyl chloride and 1H-Pyrazole-3-carbonyl chloride, 1-methyl-5-(2-thienyl)-. Key properties include a melting point of 48ºC, a boiling point of 366.5ºC at 760 mmHg, a density of 1.45g/cm3 and a flash point of 175.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
876316-46-0
Jingsj CID
J-1591978-0
Molecular Formula
C9H7ClN2OS
Chinese Name
1-甲基-5-噻吩-2-基-1H-吡唑-3-羰酰氯
Molecular Weight
226.68300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point48ºC
Boiling Point366.5ºC at 760 mmHg
Density1.45g/cm3
Flash Point175.4ºC

Frequently Asked Questions

What is the CAS number of 1-Methyl-5-thien-2-yl-1H-pyrazole-3-carbonyl chloride?

The CAS number of 1-Methyl-5-thien-2-yl-1H-pyrazole-3-carbonyl chloride is 876316-46-0.

What are the molecular formula and molecular weight of 1-Methyl-5-thien-2-yl-1H-pyrazole-3-carbonyl chloride?

1-Methyl-5-thien-2-yl-1H-pyrazole-3-carbonyl chloride has molecular formula C9H7ClN2OS and molecular weight 226.68300 g/mol.

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

Last updated:

How to cite: Jingsj. "1-Methyl-5-thien-2-yl-1H-pyrazole-3-carbonyl chloride (CAS 876316-46-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1591978-0 (accessed 2026-10-23).

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