5-Methoxy-1-methyl-1H-pyrazole-3-carboxylic acid

5-甲氧基-1-甲基-1H-吡唑-3-羧酸

Also known as: 1-Methyl-5-methoxypyrazole-3-carboxylic acid, 1H-Pyrazole-3-carboxylic acid, 5-methoxy-1-methyl-, 1H-Pyrazole-3-carboxylic acid,5-methoxy-1-methyl-(9CI), 5-methoxy-1-methylpyrazole-3-carboxylic acid

5-Methoxy-1-methyl-1H-pyrazole-3-carboxylic acid (CAS 139297-51-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H8N2O3 and a molecular weight of 156.13900 g/mol. It is also known as 1-Methyl-5-methoxypyrazole-3-carboxylic acid, 1H-Pyrazole-3-carboxylic acid, 5-methoxy-1-methyl- and 1H-Pyrazole-3-carboxylic acid,5-methoxy-1-methyl-(9CI). Key property: a boiling point of 343.4±22.0°C at 760 mmHg. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
139297-51-1
Jingsj CID
J-1387474-4
Molecular Formula
C6H8N2O3
Chinese Name
5-甲氧基-1-甲基-1H-吡唑-3-羧酸
Molecular Weight
156.13900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point343.4±22.0°C at 760 mmHg

Frequently Asked Questions

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

The CAS number of 5-Methoxy-1-methyl-1H-pyrazole-3-carboxylic acid is 139297-51-1.

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

5-Methoxy-1-methyl-1H-pyrazole-3-carboxylic acid has molecular formula C6H8N2O3 and molecular weight 156.13900 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Methoxy-1-methyl-1H-pyrazole-3-carboxylic acid (CAS 139297-51-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1387474-4 (accessed 2026-10-24).

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