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5-chloro-1-methyl-1H-pyrazole-4-carbonyl chloride

5-氯-1-甲基-1H-吡唑-4-羰酰氯

Also known as: 1H-Pyrazole-4-carbonyl chloride, 5-chloro-1-methyl- (9CI), 5-chloro-1-methyl-1H-pyrazol-4-carbonyl chloride, 5-CHLORO-1-METHYLPYRAZOLE-4-CARBONYL CHLORIDE

5-chloro-1-methyl-1H-pyrazole-4-carbonyl chloride (CAS 110763-09-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H4Cl2N2O and a molecular weight of 179.00400 g/mol. It is also known as 1H-Pyrazole-4-carbonyl chloride, 5-chloro-1-methyl- (9CI), 5-chloro-1-methyl-1H-pyrazol-4-carbonyl chloride and 5-CHLORO-1-METHYLPYRAZOLE-4-CARBONYL CHLORIDE. Key properties include a melting point of 50ºC, a boiling point of 255.4ºC at 760mmHg, a density of 1.55g/cm3 and a flash point of 108.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
110763-09-2
Jingsj CID
J-1171695-0
Molecular Formula
C5H4Cl2N2O
Chinese Name
5-氯-1-甲基-1H-吡唑-4-羰酰氯
Molecular Weight
179.00400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point50ºC
Boiling Point255.4ºC at 760mmHg
Density1.55g/cm3
Flash Point108.3ºC

Frequently Asked Questions

What is the CAS number of 5-chloro-1-methyl-1H-pyrazole-4-carbonyl chloride?

The CAS number of 5-chloro-1-methyl-1H-pyrazole-4-carbonyl chloride is 110763-09-2.

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

5-chloro-1-methyl-1H-pyrazole-4-carbonyl chloride has molecular formula C5H4Cl2N2O and molecular weight 179.00400 g/mol.

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

Last updated:

How to cite: Jingsj. "5-chloro-1-methyl-1H-pyrazole-4-carbonyl chloride (CAS 110763-09-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1171695-0 (accessed 2026-10-25).

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