C5H4ClNO
129.54 g/mol
Pharmaceutical IntermediateWarning
5-Chloro-2-pyridone
CAS4214-79-3EC224-146-1
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
5-Chloro-2-pyridone is a chemical compound used as a pharmaceutical intermediate for heterocyclic synthesis. It features a pyridone ring substituted with a chlorine atom, making it a versatile building block in medicinal chemistry research.
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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Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 5-Chloro-2-pyridone (CAS 4214-79-3) is 2933.79.
HS code (international, 6-digit)
2933.79
EU CN code (8-digit)
2933 79 00
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-chloro-1H-pyridin-2-one
InChIKey
SZFUWUOHDRMCKD-UHFFFAOYSA-N
SMILES
C1=CC(=O)NC=C1Cl
Synonyms (22)
- 2(1H)-Pyridinone, 5-chloro-
- 2(1H)-Pyridone, 5-chloro-
- 2-Hydroxy-5-chloropyridine
- 2-PYRIDINOL, 5-CHLORO-
- 3-Chloro-6-hydroxypyridine
- 5-CHLORO-1H-2-PYRIDINONE
- 5-CHLORO-2(1H)-PYRIDONE
- 5-Chloro-2(1H)-pyridinone
- 5-Chloro-2-hydroxypyridine
- 5-Chloro-2-pyridinol
- 5-Chloro-2-pyridol
- 5-Chloro-2-pyridone
- 5-Chloropyridin-2-ol
- 5-chloro-1H-pyridin-2-one
- 5-chlorohydropyridin-2-one
- 5-chloropyrid-2-one
- 5-chloropyridin-2(1H)-one
- 5-chloropyridine-2-ol
- 5-chloropyridone
- pyridine, 5-chloro-2-hydroxy-
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