1-(3,4-二甲基苯基)-2-苯乙酮

1-(3,4-dimethylphenyl)-2,5-dimethyl-3,4,6-triphenylbenzene

4-[(3,4-dimethylphenyl)methyl]-1,2-dimethylbenzene

2,3,3',4'-tetramethyldiphenylmethane

tetramethyldiphenylmethane