2-Naphthacenecarboxamide,7-chloro-4- (dimethylamino)-1,4,4a,5,5a,6,11,12aoctahydro- 3,6,10,12,12a-pentahydroxy-6- methyl-1,11-dioxo-,(4S,4aS,5aS,6S,12aS)-,compd. with N,N'-bis(phenylmethyl)-1,2- ethanediamine (2:1)