Cisatracurium Besylate EP Impurity I

Chemical Name: 2,2′-[[(1RS)-1-methylpentane-1,5-diyl]bis[oxy(3-oxopropane-3,1-diyl)]]bis[(1R,2R)-1-[(3,4-dimethoxyphenyl)methyl]-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolinium]Dibenzenesulfonate (as per EP); (1R,1′R,2S)-2-Methyl-2,2′-(3,11-dioxo-4,10-dioxatridecamethylene)bis(1,2,3,4-tetrahydro-6,7-dimethoxy-1-veratrylisoquinolinium) Dibenzenesulfonate (as per USP)