Atracurium EP Impurity A

Chemical Name: 1-(3,4-dimethoxybenzyl)-2-[13-[1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-3,4-dihydroisoquinolin-2(1H)-yl]-3,11-dioxo-4,10-dioxatridecyl]-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolinium benzenesulfonate

Smile: C[N+]1(CCC(OCCCCCOC(CCN2C(CC3=CC=C(OC)C(OC)=C3)C4=C(C=C(OC)C(OC)=C4)CC2)=O)=O)C(CC5=CC=C(OC)C(OC)=C5)C6=C(C=C(OC)C(OC)=C6)CC1.O=S(C7=CC=CC=C7)([O-])=O