英文别名Gadobutrol Impurity 9; 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic acid, tetrakis(1,1-dimethylethyl) ester; Tetrakis(2-methyl-2-propanyl) 2,2',2'',2'''-(1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrayl)tetraacetate; 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic acid, 1,4,7,10-tetrakis(1,1-dimethylethyl) ester; Cyclen Derivatives 6; Zatetol impurity4; Gadobutrol Impurity 103; tert-Butyl 1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic acid 
