4-Chloro-1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid

4-氯-3-丙基-1-甲基吡唑-5-甲酸

Also known as: 4-chloro-2-methyl-5-propylpyrazole-3-carboxylic acid, 4-chloro-2-methyl-5-propyl-3-pyrazolecarboxylic acid, 1H-Pyrazole-5-carboxylic acid, 4-chloro-1-methyl-3-propyl-, 1H-Pyrazole-5-carboxylicacid,4-chloro-1-methyl-3-propyl

4-Chloro-1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid (CAS 128537-49-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H11ClN2O2 and a molecular weight of 202.63800 g/mol. It is also known as 4-chloro-2-methyl-5-propylpyrazole-3-carboxylic acid, 4-chloro-2-methyl-5-propyl-3-pyrazolecarboxylic acid and 1H-Pyrazole-5-carboxylic acid, 4-chloro-1-methyl-3-propyl-. Key properties include a boiling point of 349.3ºC at 760 mmHg, a density of 1.34 g/cm3 and a flash point of 165.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
128537-49-5
Jingsj CID
J-1370859-3
Molecular Formula
C8H11ClN2O2
Chinese Name
4-氯-3-丙基-1-甲基吡唑-5-甲酸
Molecular Weight
202.63800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point349.3ºC at 760 mmHg
Density1.34 g/cm3
Flash Point165.1ºC

Frequently Asked Questions

What is the CAS number of 4-Chloro-1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid?

The CAS number of 4-Chloro-1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid is 128537-49-5.

What are the molecular formula and molecular weight of 4-Chloro-1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid?

4-Chloro-1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid has molecular formula C8H11ClN2O2 and molecular weight 202.63800 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Chloro-1-methyl-3-propyl-1H-pyrazole-5-carboxylic acid (CAS 128537-49-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1370859-3 (accessed 2026-10-25).

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