(1-beta,2-alpha,2a-alpha,3a-alpha)-1,2,2a,3a-Tetrahydrochryseno(3,4-b)oxirene-1,2-diol Chryseno(3,4-b)oxirene-1,2-diol, 1,2,2a,3a-tetrahydro-, (1-beta,2-alpha,2a-alpha,3a-alpha)- GC2060000 r-1,t-2-Dihydroxy-t-3,4-oxy-1,2,3,4-tetrahydrochrysene