C4H4N2O2
112.09 g/mol
Pharmaceutical IntermediateWarning
1H-Pyrazole-4-carboxylic acid
CAS37718-11-9EC253-641-5
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
1H-Pyrazole-4-carboxylic acid is a chemical compound commonly utilized as a building block in pharmaceutical manufacturing. It features a pyrazole ring with a carboxylic acid group, contributing to its utility in research and synthesis of active pharmaceutical ingredients.
pharmaceutical intermediateresearch reagentbuilding block for drug synthesis
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
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ReferenceSame Category
N-Boc-D-proline
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Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 1H-Pyrazole-4-carboxylic acid (CAS 37718-11-9) is 2933.19.
HS code (international, 6-digit)
2933.19
EU CN code (8-digit)
2933 19 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
1H-pyrazole-4-carboxylic acid
InChIKey
IMBBXSASDSZJSX-UHFFFAOYSA-N
SMILES
C1=C(C=NN1)C(=O)O
Synonyms (7)
- 1H-Pyrazol-4-carbonsure
- 1H-Pyrazole-4-carboxylic acid
- 1H-pyrazol-4-carboxylic acid
- 4-CARBOXYPYRAZOLE
- 4-Pyrazolecarboxylic acid
- 4-pyrazolcarboxylic acid
- Pyrazole-4-carboxylic Acid
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