5-amino-1-phenyl-1H-pyrazole-4-carboxylic acid

5-氨基-1-苯基-1H-吡唑-4-羧酸

Also known as: 5-amino-1-phenylpyrazole-4-carboxylic acid, 1-Phenyl-4-carboxy-5-aminopyrazole, 5-amino-1-phenyl-4-pyrazolecarboxylic acid, 1H-Pyrazole-4-carboxylic acid, 5-amino-1-phenyl-, MFCD00220607, 5-Amino-4-carboxy-1-phenyl-1H-pyrazole

5-amino-1-phenyl-1H-pyrazole-4-carboxylic acid (CAS 51649-80-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H9N3O2 and a molecular weight of 203.19700 g/mol. It is also known as 5-amino-1-phenylpyrazole-4-carboxylic acid, 1-Phenyl-4-carboxy-5-aminopyrazole and 5-amino-1-phenyl-4-pyrazolecarboxylic acid. Key properties include a melting point of 183-188ºC, a boiling point of 433.8ºC at 760 mmHg, a density of 1.41g/cm3 and a flash point of 216.2ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
51649-80-0
Jingsj CID
J-32262-5
Molecular Formula
C10H9N3O2
Chinese Name
5-氨基-1-苯基-1H-吡唑-4-羧酸
Molecular Weight
203.19700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point183-188ºC
Boiling Point433.8ºC at 760 mmHg
Density1.41g/cm3
Flash Point216.2ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 5-amino-1-phenyl-1H-pyrazole-4-carboxylic acid?

The CAS number of 5-amino-1-phenyl-1H-pyrazole-4-carboxylic acid is 51649-80-0.

What are the molecular formula and molecular weight of 5-amino-1-phenyl-1H-pyrazole-4-carboxylic acid?

5-amino-1-phenyl-1H-pyrazole-4-carboxylic acid has molecular formula C10H9N3O2 and molecular weight 203.19700 g/mol.

Is 5-amino-1-phenyl-1H-pyrazole-4-carboxylic acid hazardous?

5-amino-1-phenyl-1H-pyrazole-4-carboxylic acid has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "5-amino-1-phenyl-1H-pyrazole-4-carboxylic acid (CAS 51649-80-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32262-5 (accessed 2026-10-22).

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