英文名称:Imp-Ep-M; Cisatracurium Besylate Ep Impurity K (Monobesylate); Cisatracurium Besylate Ep Impurity K; (1R,1'R,2R,2'R)-2,2'-(((3-Methylpentane-1,5-Diyl)Bis(Oxy))Bis(3-Oxopropane-3,1-Diyl))Bis(1-(3,4-Dimethoxybenzyl)-6,7-Dimethoxy-2-Methyl-1,2,3,4-Tetrahydroisoquinolin-2-Ium); Cistracurium Besylate Ep Impurity K; IMP-EP-M