Contrast media particularly useful for X-ray diagnostic investigations on man and animals, consisting of 2,2',4,4',6,6'-hexaiodobiphenyl derivatives carrying one or more (poly)hydroxyalkoxyl, polyoxaalkoxyl, - N(D)COR₄ (wherein D = H, alkyl, (poly)hydroxylakyl and R₄ = (poly)hydroxylakyl), CONR₂R₃ (wherein R₂ and R₃, which are the same or different, are H, alkyl, (poly)hydroxyalkyl, alkoxyalkyl, polyoxaalkyl ....) chains.
特别适用于人类和动物 X 射线诊断研究的造影剂,由 2,2',4,4',6,6'-六代二苯基衍
生物组成,其中含有一个或多个(多)羟基烷氧基、多氧烷氧基、- N(D)COR₄(其中 D = H、烷基、(多)羟基烷基,R₄ = (多)羟基烷基)、CONR₂R₃(其中 R₂ 和 R₃ 相同或不同,分别为 H、烷基、(多)羟基烷基、烷氧基烷基、多氧烷基......)链。...)链。