C5H5NO
95.1 g/mol
Industrial ChemicalDanger
4-HYDROXYPYRIDINE
CAS626-64-2EC210-958-3
Category
Industrial Chemical
Compound Class
Heterocycle
Primary Use
Chemical intermediate for synthesis
4-Hydroxypyridine is an organic compound that appears as a colorless solid. It is primarily used as a chemical intermediate for synthesis.
chemical intermediate for organic 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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Solvent and chemical intermediate
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chemical intermediate for synthesis
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Chemical solvent and intermediate
ReferenceSame Category
3-bromo-1-propanol
CAS627-18-9
chemical intermediate
Referencestereoisomer of
4-hydroxypyridine-d5
CAS45503-33-1
research compound
Referencesame scaffold
3-Amino-4-hydroxypyridine
CAS6320-39-4
Heterocyclic research compound
Referencesame scaffold
4-Hydroxy-3,5-diiodopyridine
CAS7153-08-4
pharmaceutical raw material
Referencesame scaffold
3-iodopyridin-4-ol
CAS89282-03-1
research compound
Safety Reference
Danger
H302Harmful if swallowed
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-HYDROXYPYRIDINE (CAS 626-64-2) 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
1H-pyridin-4-one
InChIKey
GCNTZFIIOFTKIY-UHFFFAOYSA-N
SMILES
C1=CNC=CC1=O
Synonyms (22)
- CQG
- 1,4-Dihydro-4-pyridinone
- 1,4-dihydropyridin-4-one
- 1H-pyridin-4-one
- 4(1H)-Pyridinone
- 4(1H)-Pyridone
- 4-HYDROXYPYRIDINE
- 4-Oxopyridine
- 4-Pyridinol
- 4-Pyridinone
- 4-Pyridol
- 4-Pyridone
- 4-hydroxypridine
- 4-hydroxypyridine, AldrichCPR
- HYDROXYPYRIDINE, 4-
- gamma-Hydroxypyridine
- gamma-Pyridone
- p-Hydroxypyridine
- pyridin-4(1H)-one
- pyridine, 4-hydroxy-
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