C4H7ClN4
146.58 g/mol
Pharmaceutical IntermediateDanger
1H-Pyrazole-1-carboxamidine hydrochloride
CAS4023-02-3EC429-520-1
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
This compound is the hydrochloride salt of pyrazole-1-carboximidamide, a nitrogen-containing heterocyclic compound. It is primarily used as an intermediate in pharmaceutical manufacturing.
pharmaceutical intermediate
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
H317May cause an allergic skin reaction
H318Causes serious eye damage
H373May cause damage to organs through prolonged or repeated exposure
H412Harmful to aquatic life with long lasting effects
H260In contact with water releases flammable gases which may ignite spontaneously
H310Fatal in contact with skin
H313May be harmful in contact with skin
H333May be harmful if inhaled
H314Causes severe skin burns and eye damage
Customs Tariff Classification
The international HS code for 1H-Pyrazole-1-carboxamidine hydrochloride (CAS 4023-02-3) 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
pyrazole-1-carboximidamide;hydrochloride
InChIKey
RBZRMBCLZMEYEH-UHFFFAOYSA-N
SMILES
C1=CN(N=C1)C(=N)N.Cl
Synonyms (28)
- Zanamivir EP Impurity F(HCl)
- Zanamivir impurity F, European Pharmacopoeia (EP)
- Praxadine hydrochloride
- Pyrazole-1-Carboxamidine HCl
- Zanamivir impurity F
- Zanamivir impurity F CRS
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