1a,2,3,11c-Tetrahydro-6,11-dimethylbenzo(6,7)phenanthro(3,4-b)oxirene-2,3-diol (1aalpha,2alpha,3beta,11calpha)- 86941-59-5 Benzo(6,7)phenanthro(3,4-b)oxirene-2,3-diol, 1a,2,3,11c-tetrahydro-6,11-dimethyl-, (1aalpha,2alpha,3beta,11calpha)-