1-Methyl-1H-pyrazole-5-carbonyl chloride

1-甲基-1H-吡唑-5-甲酰氯

Also known as: 1H-Pyrazole-5-carbonyl chloride, 1-methyl-, 2-Methyl-2H-pyrazole-3-carbonyl chloride, 2-Methyl-2H-pyrazole-3-carbonyl chloride, 5-(Chlorocarbonyl)-1-methyl-1H-pyrazole, 2-methyl-3-pyrazolecarbonyl chloride, 2-methylpyrazole-3-carbonyl chloride, 1-methylpyrazole-5-carbonyl chloride, 1-Methylpyrazol-5-oylchloride, SKL1218

1-Methyl-1H-pyrazole-5-carbonyl chloride (CAS 84547-59-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5ClN2O and a molecular weight of 144.55900 g/mol. It is also known as 1H-Pyrazole-5-carbonyl chloride, 1-methyl-, 2-Methyl-2H-pyrazole-3-carbonyl chloride and 2-Methyl-2H-pyrazole-3-carbonyl chloride, 5-(Chlorocarbonyl)-1-methyl-1H-pyrazole. Key properties include a boiling point of 226.6ºC at 760 mmHg, a density of 1.37g/cm3 and a flash point of 90.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
84547-59-1
Jingsj CID
J-951473-9
Molecular Formula
C5H5ClN2O
Chinese Name
1-甲基-1H-吡唑-5-甲酰氯
Molecular Weight
144.55900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point226.6ºC at 760 mmHg
Density1.37g/cm3
Flash Point90.8ºC

Frequently Asked Questions

What is the CAS number of 1-Methyl-1H-pyrazole-5-carbonyl chloride?

The CAS number of 1-Methyl-1H-pyrazole-5-carbonyl chloride is 84547-59-1.

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

1-Methyl-1H-pyrazole-5-carbonyl chloride has molecular formula C5H5ClN2O and molecular weight 144.55900 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-1H-pyrazole-5-carbonyl chloride (CAS 84547-59-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-951473-9 (accessed 2026-10-22).

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