2-diphenylmethyliumyl-3,5-dioxo-4-phenyl-1,2,4-triazolidin-1-ide

9,10,14-triphenyl-9,10-dihydro-9,10-[1,2]epitriazoloanthracene-13,15-dione

9-methyl-14-phenyl-9H-9,10-[1,2]epitriazoloanthracene-13,15(10H,14H)-dione

9,10-dimethyl-14-phenyl-9,10-dihydro-9,10-[1,2]epi[1,2,4]triazolo-anthracene-13,15-dione