(1R,2R)-2-(2-Carboxyethyl)-1,2,3,4-tetrahydro-6,7-dimethoxy-2-methyl-1-veratrylisoquinolinium benzenesulfonate, pentamethylene ester 51W89 96946-42-8 Atracurium besylate 1R-cis,1R'-cis form Cisatracurium besylate Cisatracurium besylate [USAN:BAN] Isoquinolinium, 2,2'-(1,5-pentanediylbis(oxy(3-oxo-3,1-propanediyl)))bis(1-((3,4-dimethoxyphenyl)methyl)-1,2,3,4-tetrahydro-6,7-dimethoxy-2-methyl-, dibenzenesulfonate, (1R-(1alpha,2alpha(1'R(sup *),2'R(sup *))))- Nimbex