6-hydroxy-5,7,8-trimethyl-3,4-dihydrochromen-2-one

6,6'-dihydroxy-5,7,8,5',7',8'-hexamethyl-3,4,3',4'-tetrahydro-[4,4']bichromenyl-2,2'-dione

1,5-二苯基-1-戊酮

1-羟基-9,10-二氧代-9,10-二氢-2-蒽基乙酸酯

1,1,3-trimethyl-2-methylidenecyclohexane