3-Nitro-1H-pyrazole-5-carboxylic acid

3-硝基-1H-吡唑-5-羧酸

Also known as: 3-Nitropyrazole-5-carboxylic acid, 3-Nitro-2H-pyrazole-5-carboxylic acid

3-Nitro-1H-pyrazole-5-carboxylic acid (CAS 925646-13-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H3N3O4 and a molecular weight of 157.08400 g/mol. It is also known as 3-Nitropyrazole-5-carboxylic acid and 3-Nitro-2H-pyrazole-5-carboxylic acid. Key properties include a melting point of 174-175 °C (water), a boiling point of 509.6±35.0 °C (760 mmHg) and a density of 1.840±0.06 g/cm3 (20 °C, 760 mmHg). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
925646-13-5
Jingsj CID
J-1446972-3
Molecular Formula
C4H3N3O4
Chinese Name
3-硝基-1H-吡唑-5-羧酸
Molecular Weight
157.08400 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point174-175 °C (water)
Boiling Point509.6±35.0 °C (760 mmHg)
Density1.840±0.06 g/cm3 (20 °C, 760 mmHg)

Frequently Asked Questions

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

The CAS number of 3-Nitro-1H-pyrazole-5-carboxylic acid is 925646-13-5.

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

3-Nitro-1H-pyrazole-5-carboxylic acid has molecular formula C4H3N3O4 and molecular weight 157.08400 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Nitro-1H-pyrazole-5-carboxylic acid (CAS 925646-13-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1446972-3 (accessed 2026-10-23).

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