(+/-)-r-9,t-10-Dihydroxy-t-11,12-oxy-9,10,11,12-tetrahydorbenzo(c)chrysene 139237-89-1 Naphtho(2',1':5,6)phenanthro(3,4-b)oxirene-9,10-diol, 9,10,10a,11a-tetrahydro-, (9-alpha,10-beta,10a-beta,11a-beta)-(+-)- r-9,t-10-Dihydroxy-t-11,12-oxy-9,10,11,12-tetrahydrobenzo(c)chrysene