atracurium besylate and its Impurities
Atracurium Besylate is a non-depolarizing neuromuscular-blocking drugs. It produces skeletal muscle relaxation during surgery after general anesthesia has been induced. By WHO it is listed as most important medication needed in a basic health system. Reference standards of Atracurium Besylate API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.


Atracurium Besylate - Impurity A
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 iodide
Catalogue No.:PA 01 84010
CAS :
NA
Molecular Formula : C52H69IN2O12
Molecular Weight : 1041.01


Atracurium Besylate - Impurity H (Besylate Salt)
2,2'-[Hexane-1,6-diylbis[oxy(3-oxopropane-1,3-diyl)]]bis[1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolinium] Besylate
Catalogue No.:PA 01 84081
CAS :
NA
Molecular Formula : C66H84N2O18S2
Molecular Weight : 1257.51


Atracurium Besylate - Impurity I
2,2'-[(3-Methylpentane-1,5)-diylbis[oxy(3-oxopropane-1,3-diyl)]]bis[1-(3,4- dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolinium] diiodide
Catalogue No.:PA 01 84090
CAS :
NA
Molecular Formula : C54H74I2N2O12
Molecular Weight : 1196.98


2,2'-((Hexane-1,5-diylbis(oxy))bis(3-oxopropane-3,1-diyl))bis(1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium) Iodide
2,2'-((Hexane-1,5-diylbis(oxy))bis(3-oxopropane-3,1-diyl))bis(1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium) Iodide
Catalogue No.:PA 01 0841012
CAS :
2767988-80-5
Molecular Formula : C54H74I2N2O12
Molecular Weight : 1197


(1R)-1-(3,4-Dimethoxybenzyl)-2-(3-(3-((5-((3-((1R)-1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium-2-yl)propanoyl)oxy)pentyl)oxy)-3-oxopropoxy)-3-oxopropyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium Iodide
(1R)-1-(3,4-Dimethoxybenzyl)-2-(3-(3-((5-((3-((1R)-1-(3,4-dimethoxybenzyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium-2-yl)propanoyl)oxy)pentyl)oxy)-3-oxopropoxy)-3-oxopropyl)-6,7-dimethoxy-2-methyl-1,2,3,4-tetrahydroisoquinolin-2-ium Iodide
Catalogue No.:PA 01 0841014
CAS :
NA
Molecular Formula : C56H76I2N2O14
Molecular Weight : 1255.03