Compound Q&A

What are the physical and chemical properties of 1H-Pyrazole-3-carboxylic acid (CAS: 1621-91-6)?

Answer

1H-Pyrazole-3-carboxylic acid
1H-Pyrazole-3-carboxylic acid is a white crystalline solid with a molecular weight of approximately 132.13 g/mol. It is slightly soluble in water and ethanol. Chemically, it is a weak acid and can react with bases to form salts. It is also prone to hydrolysis under basic conditions and may undergo ring-opening reactions under certain conditions.

About

CAS No 1621-91-6
English Name 1H-Pyrazole-3-carboxylic acid
Molecular Formula C4H4N2O2
Molecular Weight 112.09 g/mol
SMILES C1=C(NN=C1)C(=O)O
InChIKey KOPFEFZSAMLEHK-UHFFFAOYSA-N
Last Updated: 2025-09-08 00:42

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