Home/Compounds/Pharmaceutical Intermediate/3-(2-Chloroethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one hydrochloride
C11H16Cl2N2O
263.16 g/mol
Pharmaceutical IntermediateDanger
3-(2-chloroethyl)-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one hydrochloride
CAS93076-03-0EC642-131-1
Category
Pharmaceutical Intermediate
Compound Class
Heterocycle
Primary Use
Pharmaceutical Intermediate
This compound is a pharmaceutical intermediate used in the manufacturing of active pharmaceutical ingredients. It has a salt-like structure containing a chlorinated heterocyclic ring system.
pharmaceutical intermediate for API manufacturing
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
StrongSame Parent
3-(2-chloroethyl)-2-methyl-6,7,8,9-tetrahydro-4hpyrido(1,2-a)pyrimidin-4-one
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ReferenceSame Category
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ReferenceSame Category
(R)-2-Aminocyclohenanol
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pharmaceutical intermediate
ReferenceSame Category
Chlorocyclohexylmagnesium
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ReferenceSame Category
1-Cyclopropyl-1,4-dihydro-6,7-difluoro-4-oxoquinoline-3-carboxylic acid
CAS93107-30-3
pharmaceutical intermediate
Referencesame scaffold
3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
CAS130049-82-0
pharmaceutical intermediate
Safety Reference
Danger
H301Toxic if swallowed
H302Harmful if swallowed
H315Causes skin irritation
H317May cause an allergic skin reaction
H318Causes serious eye damage
H319Causes serious eye irritation
H335May cause respiratory irritation
H341Suspected of causing genetic defects
H371May cause damage to organs
H411Toxic to aquatic life with long lasting effects
H373May cause damage to organs through prolonged or repeated exposure
Customs Tariff Classification
The international HS code for 3-(2-chloroethyl)-2-methyl-4H,6H,7H,8H,9H-pyrido[1,2-a]pyrimidin-4-one hydrochloride (CAS 93076-03-0) is 2933.59.
HS code (international, 6-digit)
2933.59
EU CN code (8-digit)
2933 59 95
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-(2-chloroethyl)-2-methyl-6,7,8,9-tetrahydropyrido[1,2-a]pyrimidin-4-one;hydrochloride
InChIKey
OPYLAGAQMHMBNY-UHFFFAOYSA-N
SMILES
CC1=C(C(=O)N2CCCCC2=N1)CCCl.Cl
Synonyms (13)
- Risperidone EP Impurity L (HCl)
- Risperidone Imp. L (EP); 3-(2-Chloroethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one Hydrochloride; Risperidone Imp. L (EP) as Hydrochloride; Risperidone Piperidopyrimidinone Intermediate Hydrochloride; Risperidone Impurity L as Hydrochloride
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