4-Methyl-1H-pyrazole-3-carboxylic acid

4-甲基-1H-吡唑-3-羧酸

Also known as: 4-Methylpyrazole-3-carboxylic acid, 1H-Pyrazole-3-carboxylic acid, 4-methyl-, 4-Methyl-1H-pyrazole-5-carboxylic acid (incorrect), 4-Methyl-1H-pyrazole-3-carboxylic acid (main)

4-Methyl-1H-pyrazole-3-carboxylic acid (CAS 82231-51-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O2 and a molecular weight of 126.113 g/mol. It is also known as 4-Methylpyrazole-3-carboxylic acid, 1H-Pyrazole-3-carboxylic acid, 4-methyl- and 4-Methyl-1H-pyrazole-5-carboxylic acid (incorrect). Key properties include a boiling point of 389.2±22.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 189.2±22.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
82231-51-4
Jingsj CID
J-1369405-8
Molecular Formula
C5H6N2O2
Chinese Name
4-甲基-1H-吡唑-3-羧酸
Molecular Weight
126.113 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point389.2±22.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point189.2±22.3 °C

Frequently Asked Questions

What is the CAS number of 4-Methyl-1H-pyrazole-3-carboxylic acid?

The CAS number of 4-Methyl-1H-pyrazole-3-carboxylic acid is 82231-51-4.

What are the molecular formula and molecular weight of 4-Methyl-1H-pyrazole-3-carboxylic acid?

4-Methyl-1H-pyrazole-3-carboxylic acid has molecular formula C5H6N2O2 and molecular weight 126.113 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Methyl-1H-pyrazole-3-carboxylic acid (CAS 82231-51-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1369405-8 (accessed 2026-10-22).

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