Dipyridamole EP Impurity F

2,2',2'',2'''-((4-((2-hydroxyethyl)amino)-8-(piperidin-1-yl)pyrimido[5,4-d]pyrimidine-2,6-diyl)bis(azanetriyl))tetraethanol|2,2',2'',2'''-[[4-[(2-Hydroxyethyl)amino]-8-(1-piperidinyl)pyrimido[5,4-d]pyrimidine-2,6-diyl]dinitrilo]tetrakisethanol(Dipyridamole Impurity)|2,2′,2′′,2′′′-[[4-[(2-hydroxyethyl)amino]-8-(piperidin-1-yl)pyrimido[5,4-d]pyrimidine-2,6-diyl]dinitrilo]tetraethanol;;|2,6-Di[di(2-hydroxyethyl)amino]-4-(2-hydroxyethyl)amino-8-(piperidin-1-yl)-pyrimido[5,4-d]pyrimidine|Dipyridamole USP RC F|Dipyridamole USP RC F ; 2,6-Di[di(2-hydroxyethyl)amino]-4-(2-hydroxyethyl)amino-8-(piperidin-1-yl)-pyrimido[5,4-d]pyrimidine|Pyrimido[5,4-d]pyrimidine Ethanol Deriv.;