Chemical Name: (R)-2-((6-(3-(5-methyl-1,3-dioxoisoindolin-2-yl)piperidin-1-yl)-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)methyl)benzonitrile
Synonym: Carvedilol Epoxy Impurity ; 4-(2,3-Epoxypropoxy)carbazole ; 1-(9H-carbazol-4-yloxy)-3-[4-[2-hydroxy-3-[[2-(2-methoxyphenoxy)ethyl]amino]propoxy]-9H-carbazol-9-yl]propan-2-ol