Compound Q&A
What are the physical and chemical properties of 1H-Pyrazole-4-carboxylic acid (CAS: 37718-11-9)?
Answer
1H-Pyrazole-4-carboxylic acid is a white to off-white crystalline solid with a molecular weight of approximately 131.12 g/mol. It has a pKa of 3.2 and a partition coefficient (log P) of -0.5, indicating a slightly acidic nature and moderate lipophilicity. The compound is slightly soluble in water and ethanol but soluble in organic solvents like dichloromethane and acetone. It demonstrates reactivity towards nucleophiles and can undergo condensation reactions and amide formations.
About
CAS No
37718-11-9
English Name
1H-Pyrazole-4-carboxylic acid
Molecular Formula
C4H4N2O2
Molecular Weight
112.09 g/mol
SMILES
C1=C(C=NN1)C(=O)O
InChIKey
IMBBXSASDSZJSX-UHFFFAOYSA-N
Last Updated: 2025-09-09 08:06
