1-((2S,3S,5S,8R,9S,10S,13S,14S,16S,17R)-3,17-diacetoxy-10,13-dimethyl-2-(piperidin-1-yl)hexadecahydro-1H-cyclopenta[a]phenanthren-16-yl)-1-methylpiperidin-1-ium bromide; 1-[(2?,3?,5?,16?,17?)-3,17-Bis(acetyloxy)-2-(1-piperidinyl)androstan-16-yl]-1-methyl-piperidinium Bromide; Musculax; NC 45; Norcuron; Org-NC 45; Vecuronium