17910-68-8 2-Naphthacenecarboxamide, N,N'-(ethylenebis((methylimino)methylene))bis(4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo- N,N'-Bis-tetracyclinomethylene N,N'-dimethylethylene diamine [French]