Specification :

DPR01: Dipyridamole

2, 2' , 2? , 2' ' ' -[ [ 4, 8-di( piperidin-1-yl) pyrimido[ 5, 4-d] pyrimidine -2, 6-diyl] dinitrilo] tetraethanol
[ CAS # 58-32-2 ]

DPR02: Dipyridamole EP Impurity A

CAS Name: 2, 2' -[ [ 4, 6, 8-tri( piperidin-1-yl) -pyrimido[ 5, 4-d] pyrimidin-2-yl] nitrilo] dieth anol
[ CAS # 16982-40-4 ]

DPR03: Dipyridamole EP Impurity B

CAS Name: 2, 2' , 2" , 2' ' ' , 2' ' ' ' , 2' ' ' ' ' -[ [ 8-( Piperidin-1-yl) -pyrimido[ 5, 4-d] pyrimidine-2, 4 , 6-triyl] trinitrilo] hexaethanol
[ CAS # 16908-47-7 ]

DPR04: Dipyridamole EP Impurity C

CAS Name: 2, 2' -[ [ 2-chloro-4, 8-di( piperidin-1-yl) -pyrimido[ 5, 4-d] pyrimidin-6-yl] nitrilo ] diethanol
[ CAS # 54093-92-4 ]

DPR05: Dipyridamole EP Impurity D

CAS Name: 2, 2' -[ [ 2-( 2-Hydroxyethyl) amino-4, 8-di( piperidin-1-yl) -pyrimido[ 5, 4-d] pyrimid in-6-yl] nitrilo] diethanol

DPR06: Dipyridamole EP Impurity E

CAS Name: 2, 4-Di[ di( 2-hydroxyethyl) amino] -6, 8-di( piperidin-1-yl) -pyrimido[ 5, 4-d] pyrimi dine

DPR07: Dipyridamole EP Impurity F

CAS Name: 4, 6-Di[ di( 2-hydroxyethyl) amino] -2-( 2-hydroxyethyl) amino-8-( piperidin-1-yl) -p yrimido[ 5, 4-d] pyrimidine

DPR08: Dipyridamole EP Impurity G

CAS Name: 2, 6-Dichloro-4, 8-di( piperidin-1-yl) -pyrimido[ 5, 4-d] pyrimidine

DPR09: Dipyridamole Tetrachloro Impurity

CAS Name: 2, 4, 6, 8-Tetrachloro-pyrimido[ 5, 4-d] pyrimidine

DPR10: Dipyridamole Trichloro Impurity

CAS Name: 2, 4, 6-Trichloro-8-( piperidin-1-yl) -pyrimido[ 5, 4-d] pyrimidine

DPR11: Dipyridamole Dichloro Impurity

CAS Name: 2, 6-Dichloro-4-di( 2-hydroxyethyl) amino-8-( piperidin-1-yl) -pyrimido[ 5, 4-d] pyr imidine