61490-69-5 7-alpha,8-beta,9-alpha,10-alpha-Tetrahydroxy-7,8,9,10-tetrahydrobenzo(a)pyrene 7/8,9,10-Tetrahydroxytetrahydrobenzo(a)pyrene BENZO(a)PYRENE, 7,8,9,10-TETRAHYDRO-7-beta,8-alpha,9-beta,10-beta-TETRAHYDROXY- Benzo(a)pyrene-7,8,9,10-tetrol, 7,8,9,10-tetrahydro-, (7-alpha,8-beta,9-alpha,10-alpha)- (9CI) Benzo(a)pyrene-7-beta,8-alpha,9-beta,10-beta-tetraol