Atracurium Impurity A1 (trans-Monoquatenary)

Chemical Name: (1R,2S)-1-(3,4-dimethoxybenzyl)-2-(3-((5-((3-((R)-1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-3,4-dihydroisoquinolin-2(1H)-yl)propanoyl)oxy)pentyl)oxy)-3-oxopropyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium 2,2,2-trifluoroacetate

Synonym: Esomeprazole EP Impurity E ; Omeprazole EP Impurity E ; Omeprazole N-Oxide ; Omeprazole USP Related Compound E ; 4-Methoxy-2-[[(RS)-(5-methoxy-1H-benzimidazol-2-yl)sulfinyl]methyl]-3,5-dimethylpyridine 1-oxide ;

Smile: COC1=CC([C@@H](CC(C=C2)=CC(OC)=C2OC)N(CCC(OCCCCCOC(CC[N@@+](CC3)(C)[C@H](CC(C=C4)=CC(OC)=C4OC)C(C=C5OC)=C3C=C5OC)=O)=O)CC6)=C6C=C1OC.[O-]C(C(F)(F)F)=O