1-ETHYL-3-METHYL-1H-PYRAZOLE-5-CARBONYL CHLORIDE

1-乙基-3-甲基-1H-吡唑-5-羰酰氯

Also known as: 1-ETHY-3-METHYL-1H-PYRAZOLE-5-CARBONYL CHLORIDE, 1-ETHYL-3-METHYLPYRAZOLE-5-CARBONYL CHLORIDE, 1-Ethyl-3-Methylpyrazole-5-Carbonyl Chloride, 1-Ethyl-3-methyl-1H-pyrazol-5-carbonyl chloride, 1-ethyl-3-methylpyrazole-5-carboxylic acid chloride, 1H-Pyrazole-5-carbonyl chloride, 1-ethyl-3-methyl-, 2-ethyl-5-methylpyrazole-3-carbonyl chloride, 5-(Chlorocarbonyl)-1-ethyl-3-methyl-1H-pyrazole, 5-(Chloroformyl)-1-ethyl-3-methyl-1H-pyrazole, BUTTPARK 37\06-100

1-ETHYL-3-METHYL-1H-PYRAZOLE-5-CARBONYL CHLORIDE (CAS 128249-59-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H9ClN2O and a molecular weight of 172.61200 g/mol. It is also known as 1-ETHY-3-METHYL-1H-PYRAZOLE-5-CARBONYL CHLORIDE, 1-ETHYL-3-METHYLPYRAZOLE-5-CARBONYL CHLORIDE and 1-Ethyl-3-Methylpyrazole-5-Carbonyl Chloride. Key properties include a boiling point of 263.4ºC at 760mmHg, a density of 1.26g/cm3 and a flash point of 113.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
128249-59-2
Jingsj CID
J-1065283-5
Molecular Formula
C7H9ClN2O
Chinese Name
1-乙基-3-甲基-1H-吡唑-5-羰酰氯
Molecular Weight
172.61200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point263.4ºC at 760mmHg
Density1.26g/cm3
Flash Point113.1ºC

Frequently Asked Questions

What is the CAS number of 1-ETHYL-3-METHYL-1H-PYRAZOLE-5-CARBONYL CHLORIDE?

The CAS number of 1-ETHYL-3-METHYL-1H-PYRAZOLE-5-CARBONYL CHLORIDE is 128249-59-2.

What are the molecular formula and molecular weight of 1-ETHYL-3-METHYL-1H-PYRAZOLE-5-CARBONYL CHLORIDE?

1-ETHYL-3-METHYL-1H-PYRAZOLE-5-CARBONYL CHLORIDE has molecular formula C7H9ClN2O and molecular weight 172.61200 g/mol.

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

Last updated:

How to cite: Jingsj. "1-ETHYL-3-METHYL-1H-PYRAZOLE-5-CARBONYL CHLORIDE (CAS 128249-59-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1065283-5 (accessed 2026-10-24).

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