5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl chloride

5-氯-1-甲基-3-(三氟甲基)-1H-吡唑-4-羰酰氯

Also known as: 1H-Pyrazole-4-carbonyl chloride, 5-chloro-1-methyl-3-(trifluoromethyl)-, 5-Chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl, 5-chloro-1-methyl-3-(trifluoromethyl)pyrazole-4-carbonyl chloride, 5-chloro-1-methyl-3-trifluoromethylpyrazole-4-carbonyl chloride

5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl chloride (CAS 128564-57-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H3Cl2F3N2O and a molecular weight of 247.00200 g/mol. It is also known as 1H-Pyrazole-4-carbonyl chloride, 5-chloro-1-methyl-3-(trifluoromethyl)-, 5-Chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl and 5-chloro-1-methyl-3-(trifluoromethyl)pyrazole-4-carbonyl chloride. Key property: a melting point of 100ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
128564-57-8
Jingsj CID
J-1615987-7
Molecular Formula
C6H3Cl2F3N2O
Chinese Name
5-氯-1-甲基-3-(三氟甲基)-1H-吡唑-4-羰酰氯
Molecular Weight
247.00200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point100ºC

Frequently Asked Questions

What is the CAS number of 5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl chloride?

The CAS number of 5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl chloride is 128564-57-8.

What are the molecular formula and molecular weight of 5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl chloride?

5-chloro-1-methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl chloride has molecular formula C6H3Cl2F3N2O and molecular weight 247.00200 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-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl chloride (CAS 128564-57-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1615987-7 (accessed 2026-10-25).

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