1-(((3-(2-(Dimethylamino)ethyl)-1H-indol-5-yl)methyl)sulfonyl)pyrrolidine, hydroxybutanedionate (1:1) 181183-52-8 Almotriptan malate Axert Butanedioic acid, hydroxy-, compd. with 1-(((3-(2-(dimethylamino)ethyl)-1H-indol-5-yl)methyl)sulfonyl)pyrrolidine (1:1) LAS 31416 D,L-malate acid PNU 180638E