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-2-one

InChIKey

UBQKCCHYAOITMY-UHFFFAOYSA-N

SMILES

C1=CC(=O)NC=C1

Synonyms (45)

HRZ
Levetiracetam EP Impurity C
Levetiracetam impurity C, European Pharmacopoeia (EP)
Pyridin-2-ol; Levetiracetam Imp. C (EP); 2-Hydroxypyridine; Levetiracetam Impurity C
(1H)-pyridone
1,2-dihydro-oxopyridine
1,2-dihydropyridin-2-one
1-Hydroxy-2-pyridine
1H-2-Pyridone
1H-pyridin-2-one
2(1H)-Pyridinone
2(1H)-Pyridinone (NIST)
2(1H)-Pyridone
2(1H)-Pyridone, dimer
2(lH)-Pyridinone
2-HYDROXYPYRIDINE
2-Oxopyridine
2-Pyridinol
2-Pyridinol (ACD/Name 4.0)
2-Pyridinone
2-Pyridol
2-Pyridone
2-hydroxyl pyridine
2-hydroxypryidine
2-hyroxypyridine
2-pyridyl alcohol
2H-pyridin-2-one
HYDROXYPYRIDINE, 2-
Hydroxypyridine
LEVETIRACETAM IMPURITY C
Levetiracetam impurity C CRS
Pyridinol
Pyridinone
Pyridone-2 [French]
alpha-Pyridone
hydroxylpyridine
pyrdinone
pyridin-2(1H)-one
pyridine, 1,2-dihydro-2-oxo-
pyridine, 2-hydroxy-
pyridinyl alcohol
|A-Pyridone

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