Gadobutrol Impurity 138

2,2'- (7,10-bis ((2S,3R) -1,3,4-trihydroxybutan-2-yl) -1,4,7,10-tetraazacyclododecane-1,4-diyl) diacetic acid

C20H40N4O10

496.56

Gadobutrol

2,2'- (7,10-bis ((2S,3R) -1,3,4-trihydroxybutan-2-yl) -1,4,7,10-tetraazacyclododecane-1,4-diyl) diacetic acid