2,4,5-三甲酚

2,2,5,7,7,10-hexamethyl-3,4,8,9-tetrahydropyrano[2,3-g]chromene

3-hydroxy-2,5-dimethylcyclohexa-2,5-diene-1,4-dione

2,5-dimethylbenzene-1,4-diol

2,5-bis(hexylamino)-3,6-dimethylcyclohexa-2,5-diene-1,4-dione