Risperidone

Risperidone 4-Hydroxybenzoyl Impurity Risperidone 4-Hydroxybenzoyl Impurity:

3-[2-[4-(2-Fluoro-4-hydroxybenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one ; C23H28FN3O3 ; MW: 413.49 ;
Risperidone Risperidone :

CAS : 106266-06-2 ; C23H27FN4O2 ; MW: 410.48 ;
Risperidone Acetylpiperidine Impurity Risperidone Acetylpiperidine Impurity :

4-[4-Fluoro-2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl] benzoyl]-N-acetylpiperidine ; C26H27F2N3O3 ;  MW: 467.51 ;
Risperidone Desfluoro 2-Hydroxybenzoyl Impurity Risperidone Desfluoro 2-Hydroxybenzoyl Impurity :

3-[2-[4-(2-Hydroxybenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one ;   C23H29N3O3 ;  MW: 395.49 ;
Risperidone Difluoro Acetyl Impurity Risperidone Difluoro Acetyl Impurity :

4-(2,4-Difluorobenzoyl)-N-acetylpiperidine ; CAS : 84162-82-3 ;

C14H15F2NO2 ;  MW: 267.27 ;
Risperidone Difluorobenzoyl Impurity Risperidone Difluorobenzoyl Impurity :

4-(2,4-Difluorobenzoyl)-piperidine HCl ; CAS : 106266-04-0 ; C12H14ClF2NO ;  MW: 261.70 ;
Risperidone Impurity A Risperidone  Impurity A :

Risperidone E-Oxime ; CAS : 691007-09-7 ; C23H28F2N4O2 ; MW: 430.49 ;
Risperidone Impurity B Risperidone Impurity B :

Risperidone Z-Oxime ; CAS : 132961-05-8 ;  C23H28F2N4O2 ;  MW: 430.49 ;
Risperidone Impurity C Risperidone  Impurity C :

9-Hydroxy Risperidone ; Paliperidone ; CAS : 144598-75-4 ;

C23H27FN4O3 ;  MW: 426.48 ;
Risperidone Impurity D Risperidone  Impurity D :

Risperidone 5-Fluoro Isomer ; CAS : 1199589-74-6 ; C23H27FN4O2 ;

MW: 410.48 ;
Risperidone Impurity E Risperidone Impurity E:

6-Methyl Risperidone ; 2,6-Dimethyl Risperidone ; CAS : 1346602-28-5 ;

C24H29FN4O2 ;MW: 424.51 ;
Risperidone Impurity F Risperidone  Impurity F:

Risperidone Carboxylate Impurity ;

2-[2-Methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a] pyrimidin-3-yl] ethyl 4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidin-1-carboxylate ;  C24H27FN4O4 ;   MW: 454.49 ;
 
Risperidone Impurity H Risperidone Impurity H:

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 ; CAS : 158697-67-7 ; C23H27F2N3O2 ;  MW: 415.48 ;
Risperidone Impurity I Risperidone Impurity I :

3-[2-[4-[4-Fluoro-2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]benzoyl]piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H- pyrido[1,2-a]pyrimidin-4-one ; CAS : 1329796-66-8 ;   C36H39F2N5O3 ;   MW: 615.71 ;
Risperidone Impurity J Risperidone  Impurity J;

3-[2-[4-[(Z)-(4-Fluoro-2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl)phenyl](hydroxyimino)methyl]piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one ; CAS : 1346606-24-3 ;   C35H40F2N6O3 ;  MW: 630.73 ;
Risperidone Impurity K Risperidone  Impurity K:

Desfluoro Risperidone ; CAS : 106266-09-5 ; C23H28N4O2 ;  MW: 392.49 ;
Risperidone Impurity L Risperidone Impurity L:

Risperidone Chloroethyl Impurity ; CAS : 63234-80-0 ;

C11H15ClN2O ; MW: 226.7 ;
Risperidone Impurity M Risperidone Impurity M:

Risperidone Amine Impurity (HCl Salt) ; CAS : 84163-13-3 ;  C12H14ClFN2O ;  MW: 256.70 ;
Risperidone Ethyl Impurity Risperidone Ethyl Impurity :

3-Ethyl-2-methyl-6,7,8,9-tetrahydro-4H-pyrido-(1,2-a)-pyrimidin-4-one ; CAS : 70381-58-7 ;  C11H16N2O ;  MW: 192.26 ;
Risperidone Hydroxyethyl Impurity Risperidone Hydroxyethyl Impurity :

3-(2-Hydroxyethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido-(1,2-a)-pyrimidin-4-one ; C11H16N2O2 ; MW: 208.26 ;
Risperidone N-Oxide Risperidone N-Oxide:

3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-oxido-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one ; CAS : 832747-55-4 ; C23H27FN4O3 ; MW: 426.48 ;
Risperidone Piperidine Impurity Risperidone Piperidine Impurity:

4-[4-Fluoro-2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl] benzoyl]-piperidine ; C24H25F2N3O2 ;  MW: 425.47 ;
Risperidone RC G Risperidone  RC G:

Risperidone 2-Hydroxybenzoyl Impurity ; 3-[2-[4-(4-Fluoro-2-hydroxybenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one ; CAS : 152542-00-2 ; C23H28FN3O3 ;  MW: 413.49 ;

 

Risperidone Form-II Risperidone Form-II:

3-[2-4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one ;  C₂₃H₂₇FN₄O₂ ;  MW: 410.48 g/mol ;