7,12-dimethyltetraphene1,4-Dimethyl-2,3-benzphenanthrene6,7-Dimethyl-1,2-benzanthracene7,12-DMBA7,12-Dimethyl-1,2-benzanthracene7,12-Dimethyl-1:2-benz(a)anthracene7,12-Dimethylbenz(a)anthracene7,12-Dimethylbenzanthracene7,12-Dimethylbenzanthrancene7,12-dimethylbenzo[a]anthracene9,10-Dimethyl-1,2-benzanthracene9,10-Dimethyl-1,2-benzanthrazen9,10-Dimethylbenz(a)anthraceneDMBA