ANTI-BPDE ANTI-BENZO[A]PYRENE-GUANOSINE-BSA (-)-DE2 (7S)-7,8,8aα,9aα-Tetrahydrobenzo[10,11]chryseno[3,4-b]oxirene-7α,8β-diol (7S,8R,8aR,9aS)-7,8,8a,9a-Tetrahydrobenzo[10,11]chryseno[3,4-b]oxirene-7,8-diol (7S,8R,9R,10S)-7,8,9,10-Tetrahydro-7,8-dihydroxy-9,10-epoxybenzo[a]pyrene Benzo[10,11]chryseno[3,4-b]oxirene-7,8-diol, 7,8,8a,9a-tetrahydro-, (7S,8R,8aR,9aS)-