(10alpha,11beta,11aalpha,12aalpha)-10,11,11a,12a-Tetrahydrodibenz(5,6:7,8)anthra(1,2-b)oxirene-10,11-diol 70951-82-5 Dibenz(5,6:7,8)anthra(1,2-b)oxirene-10,11-diol, 10,11,11a,12a-tetrahydro-, (10alpha,11beta,11aalpha,12aalpha)-