Dipyridamole Impurity I

Chemical Name: 4-(2-((6-(bis(2-hydroxyethyl)amino)-4,8-di(piperidin-1-yl)pyrimido[5,4-d]pyrimidin-2-yl)(2-hydroxyethyl)amino)ethoxy)-2,3-dihydroxy-4-oxobutanoic acid

Synonym: (R)-3-(dimethylamino)-1-(thiophen-2-yl)propan-1-ol