Dhamtec Pharma and Consultants-
Dhamtec Pharma and Consultants-

Impurity Standards

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Risperidone EP Impurity L

Product Code:
DH/RIS/1009		Molecular Formula:
C11H15ClN2O
CAS Number:
63234-80-0		Molecular Weight:
226.7
Synonyms: 3-(2-Chloroethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido-(1,2a)-pyrimidin-4-one


Risperidone Impurity Difluorobenzoyl

Product Code:
DH/RIS/1010		Molecular Formula:
C12H14ClF2NO
CAS Number:
106266-04-0		Molecular Weight:
261.70
Synonyms: 4-(2,4-Difluorobenzoyl)-piperidine HCl


Risperidone EP Impurity H

Product Code:
DH/RIS/1011		Molecular Formula:
C23H27F2N3O2
CAS Number:
158697-67-7		Molecular Weight:
415.48
Synonyms: 3-[2-[4-(2,4-Difluorobenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one


Risperidone EP Impurity K

Product Code:
DH/RIS/1012		Molecular Formula:
C23H28N4O2
CAS Number:
106266-09-5		Molecular Weight:
392.49
Synonyms: 3-[2-[4-(1,2-Benzisoxazol-3-yl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4Hpyrido[1,2-a]pyrimidin-4-one.


Bicyclo Risperidone

Product Code:
DH/RIS/1013		Molecular Formula:
C23H28FIN4O2
CAS Number:
NA		Molecular Weight:
538.4
Synonyms: 3-(4-Fluoro-2-hydroxyphenyl)-1-(2-(2-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-3-yl)ethyl)-1,2-diazabicyclo[2.2.2]oct-2-en-1-ium Iodide


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