1,2-Dihydrodiol-dmba 68984-91-8 7,12-Dimethylbenz(a)anthracene-1,2-dihydrodiol Benz(a)anthracene-1,2-diol, 1,2-dihydro-7,12-dimethyl-, trans- trans-1,2-Dihydro-1,2-dihydroxy-7,12-dimethylbenz(a)anthracene