C12H15N3O
217.27 g/mol
Pharmaceutical IntermediateDanger
1-(4-Piperidinyl)-1,3-dihydro-2H-benzimidazol-2-one
CAS20662-53-7EC243-950-3
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
This compound is a piperidine-substituted benzimidazolone derivative, structurally related to fentanyl analogs. It is primarily used as a pharmaceutical intermediate in the synthesis of various active pharmaceutical ingredients.
pharmaceutical intermediateresearch reagent
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
Danger
H301Toxic if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 1-(4-Piperidinyl)-1,3-dihydro-2H-benzimidazol-2-one (CAS 20662-53-7) 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
3-piperidin-4-yl-1H-benzimidazol-2-one
InChIKey
BYNBAMHAURJNTR-UHFFFAOYSA-N
SMILES
C1CNCCC1N2C3=CC=CC=C3NC2=O
Synonyms (35)
- Benperidol EP Impurity A; Pimozide EP Impurity A
- Benperidol Imp. A (EP); 1-(Piperidin-4-yl)-1,3-dihydro-2H-benzimidazol-2-one; Benperidol Impurity A
- Benzimidazolone
- PIMOZIDE IMPURITY A
- Phenoperidol impurity A
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