7,8-Demtbp 7,8-Dihydroxy-9,10-epoxy-8-methyl-7,8,9,10-tetrahydrobenzo(a)pyrene 89524-81-2 Benzo(10,11)chryseno(3,4-b)oxirene-7,8-diol, 7,8,8a,9a-tetrahydro-8-methyl-, (7alpha,8beta,8aalpha,9aalpha)- trans-7,8-Dihydroxy-anti-9,10-epoxy-8-methyl-7,8,9,10-tetrahydrobenzo(a)pyrene