C5H6N2O2
126.11 g/mol
Research ReagentWarning
5-Methyl-1H-pyrazole-3-carboxylic acid
CAS402-61-9
Category
Research Reagent
Compound Class
Heterocycle
Primary Use
Research Compound
5-Methyl-1H-pyrazole-3-carboxylic acid is a pyrazole derivative bearing a methyl group at position 5 and a carboxylic acid group at position 3. It is recognized as a metabolite and is commonly used as a research compound.
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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CAS402-69-7
research compound
ReferenceSame Category
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research compound
ReferenceSame Category
3,5-Dimethyl-4-nitro-1H-pyrrole-2-carbaldehyde
CAS40236-20-2
research compound
ReferenceSame Category
N,N-dimethyl-3-(4-methylbenzoyl)propionamide
CAS402470-91-1
research compound
Safety Reference
Warning
H302Harmful if swallowed
H312Harmful in contact with skin
H332Harmful if inhaled
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 5-Methyl-1H-pyrazole-3-carboxylic acid (CAS 402-61-9) 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
5-methyl-1H-pyrazole-3-carboxylic acid
InChIKey
WSMQKESQZFQMFW-UHFFFAOYSA-N
SMILES
CC1=CC(=NN1)C(=O)O
Synonyms (15)
- 5-carb-oxy-3-methylpyrazole
- 5-methyl-3-carboxyl-pyrazole
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