C3H4N2
68.08 g/mol
Research ReagentDanger
Pyrazole
CAS288-13-1EC206-017-1
Category
Research Reagent
Compound Class
Heterocycle
Primary Use
Research Compound
Pyrazole is a heteroaromatic compound consisting of a five-membered ring containing two adjacent nitrogen atoms. It is primarily used as a building block in organic synthesis and as a chelating agent.
Chelating agentReagent for organic synthesisEtching agent
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
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Safety Reference
Danger
H302Harmful if swallowed
H311Toxic in contact with skin
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation
H372Causes damage to organs through prolonged or repeated exposure
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for Pyrazole (CAS 288-13-1) 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
InChIKey
WTKZEGDFNFYCGP-UHFFFAOYSA-N
SMILES
C1=CNN=C1
Synonyms (12)
- 1,2-diazole
- 1H-Pyrazole
- 1H-pyrazol
- 2-Pyrromonazole
- 3-pyrazole
- Hpz
- Pyrazol
- Pyrazole, purum, >=98.0% (GC)
- diazole
- pyrazole
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