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1-Methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl chloride

1-甲基-3-三氟甲基-吡唑-4-羰酰氯

Also known as: 1-Methyl-3-(trifluoromethyl)-1H-pyrazol-4-carbonyl chloride, 1-methyl-3-(trifluoromethyl)pyrazole-4-carbonyl chloride, 1H-Pyrazole-4-carbonyl chloride, 1-methyl-3-(trifluoromethyl)-, 1H-Pyrazole-4-carbonyl chloride, 1-methyl-3-(trifluoromethyl)- (9CI)

1-Methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl chloride (CAS 126674-98-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4ClF3N2O and a molecular weight of 212.55700 g/mol. It is also known as 1-Methyl-3-(trifluoromethyl)-1H-pyrazol-4-carbonyl chloride, 1-methyl-3-(trifluoromethyl)pyrazole-4-carbonyl chloride and 1H-Pyrazole-4-carbonyl chloride, 1-methyl-3-(trifluoromethyl)-. Key properties include a boiling point of 251.1ºC at 760mmHg, a density of 1.56g/cm3 and a flash point of 105.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
126674-98-4
Jingsj CID
J-1510520-4
Molecular Formula
C6H4ClF3N2O
Chinese Name
1-甲基-3-三氟甲基-吡唑-4-羰酰氯
Molecular Weight
212.55700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point251.1ºC at 760mmHg
Density1.56g/cm3
Flash Point105.6ºC

Frequently Asked Questions

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

The CAS number of 1-Methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl chloride is 126674-98-4.

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

1-Methyl-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl chloride has molecular formula C6H4ClF3N2O and molecular weight 212.55700 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-3-(trifluoromethyl)-1H-pyrazole-4-carbonyl chloride (CAS 126674-98-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1510520-4 (accessed 2026-10-25).

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