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1-Phenyl-1H-pyrazole-5-carboxylic acid

1-苯基-1H-吡唑-5-羧酸

Also known as: 2-phenylpyrazole-3-carboxylic acid, 1H-Pyrazole-5-carboxylic acid, 1-phenyl-, 1-phenyl-1H-pyrazole-5-carboxylic acid

1-Phenyl-1H-pyrazole-5-carboxylic acid (CAS 1133-77-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H8N2O2 and a molecular weight of 188.18300 g/mol. It is also known as 2-phenylpyrazole-3-carboxylic acid, 1H-Pyrazole-5-carboxylic acid, 1-phenyl- and 1-phenyl-1H-pyrazole-5-carboxylic acid. Key properties include a melting point of 182ºC, a boiling point of 379.6ºC at 760 mmHg, a density of 1.28 g/cm3 and a flash point of 183.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1133-77-3
Jingsj CID
J-33781-2
Molecular Formula
C10H8N2O2
Chinese Name
1-苯基-1H-吡唑-5-羧酸
Molecular Weight
188.18300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point182ºC
Boiling Point379.6ºC at 760 mmHg
Density1.28 g/cm3
Flash Point183.4ºC

Frequently Asked Questions

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

The CAS number of 1-Phenyl-1H-pyrazole-5-carboxylic acid is 1133-77-3.

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

1-Phenyl-1H-pyrazole-5-carboxylic acid has molecular formula C10H8N2O2 and molecular weight 188.18300 g/mol.

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

Last updated:

How to cite: Jingsj. "1-Phenyl-1H-pyrazole-5-carboxylic acid (CAS 1133-77-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-33781-2 (accessed 2026-10-22).

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