4,5-dianilinocyclohexa-3,5-diene-1,2-dione

N-甲基苯胺

4-甲基苯并-15-冠醚-5

4-methoxy-5-methylcyclohexa-3,5-diene-1,2-dione

6-methyl-2,3-dihydro-1,4-benzodioxine