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