197068-87-4 1,3,4A,5,7,8A-HEXAMETHYLTETRAHYDROCYCLOBUTA[1,2-D:3,4-D']DIPYRIMIDINE-2,4,6,8(1H,3H,4AH,7H)-TETRONE 140840-78-4 Indolo[2,3-a]quinolizine-2-acetic acid, 1,2,3,4,6,7,12,12b-octahydro-,methyl ester, trans- 1972-09-3 2-Naphthacenecarboxamide,N-[[bis(2-chloroethyl)amino]methyl]-4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-,[4S-(4a,4aa,5aa,6b,12aa)]- (9CI)