C5H6N2O
110.11 g/mol
Pharmaceutical IntermediateDanger
4-Aminopyridine 1-oxide
CAS3535-75-9EC222-569-6
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
4-Aminopyridine 1-oxide is a chemical compound used as a pharmaceutical intermediate. It features an aromatic ring structure with an N-oxide functional group and an imine-like nitrogen substituent.
pharmaceutical intermediateresearch 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
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1-Methyl-5-nitro-1H-benzimidazole-2-butanoic acid ethyl ester
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Safety Reference
Danger
H301Toxic if swallowed
Customs Tariff Classification
The international HS code for 4-Aminopyridine 1-oxide (CAS 3535-75-9) is 2933.39.
HS code (international, 6-digit)
2933.39
EU CN code (8-digit)
2933 39 99
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
1-hydroxypyridin-4-imine
InChIKey
SJQWWHFNDOUAGY-UHFFFAOYSA-N
SMILES
C1=CN(C=CC1=N)O
Synonyms (13)
- 1-hydroxypyridin-4-imine
- 4-Aminopyridine 1-oxide
- 4-Aminopyridine N-Oxide
- 4-Pyridinamine, 1-oxide
- 4-Pyrimidinamine 1-oxide
- 4-aminopyridin-1-ium-1-olate
- PYRIDINE, 4-AMINO-, 1-OXIDE
- Phillips 1863
- Pyridin-4-amine 1-oxide
- Pyridine, 4-amino-, N-oxide
- Pyridine, N-oxide
- pyridine, 1-oxide, 4-amino-
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