9-(2,4,6-Cycloheptatrien-1-yl)-9,10-dihydroanthracen

8,9:10,11-Dibenzotricyclo[5.2.2.22,6]trideca-3,8,10,12-tetraen

9,10:11,12-Dibenzotricyclo[6.2.2.12,7]trideca-3,5,9,11-tetraen

1-(2,4-dihydroxy-3,6-dimethoxyphenyl)-2-methoxyethan-1-one