(+)-(1R,2S,3R,4S)-3,4-Dihydroxy-1,2-epoxy-1,2,3,4-tetrahydrobenz(a)anthracene Benz(a)anthracene-3-alpha,4-beta-diol, 1,2,3,4-tetrahydro-1-beta,2-beta-epoxy-, (+)- CW4640070