1-Methyl-5-phenyl-1H-pyrazole-3-carbonyl chloride

1-甲基-5-苯基-1H-吡唑-3-羰酰氯

Also known as: 1-Methyl-5-phenyl-1H-pyrazole-3-carbonyl chloride, 1-methyl-5-phenylpyrazole-3-carbonyl chloride, 1H-Pyrazole-3-carbonyl chloride, 1-methyl-5-phenyl-

1-Methyl-5-phenyl-1H-pyrazole-3-carbonyl chloride (CAS 859850-98-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H9ClN2O and a molecular weight of 220.65500 g/mol. It is also known as 1-methyl-5-phenylpyrazole-3-carbonyl chloride and 1H-Pyrazole-3-carbonyl chloride, 1-methyl-5-phenyl-. Key properties include a melting point of 80-81.5ºC, a boiling point of 366.9ºC at 760 mmHg, a density of 1.26g/cm3 and a flash point of 175.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
859850-98-9
Jingsj CID
J-1312969-1
Molecular Formula
C11H9ClN2O
Chinese Name
1-甲基-5-苯基-1H-吡唑-3-羰酰氯
Molecular Weight
220.65500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point80-81.5ºC
Boiling Point366.9ºC at 760 mmHg
Density1.26g/cm3
Flash Point175.7ºC

Frequently Asked Questions

What is the CAS number of 1-Methyl-5-phenyl-1H-pyrazole-3-carbonyl chloride?

The CAS number of 1-Methyl-5-phenyl-1H-pyrazole-3-carbonyl chloride is 859850-98-9.

What are the molecular formula and molecular weight of 1-Methyl-5-phenyl-1H-pyrazole-3-carbonyl chloride?

1-Methyl-5-phenyl-1H-pyrazole-3-carbonyl chloride has molecular formula C11H9ClN2O and molecular weight 220.65500 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-5-phenyl-1H-pyrazole-3-carbonyl chloride (CAS 859850-98-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1312969-1 (accessed 2026-10-24).

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