111901-42-9 5-Methylchrysene-7R,8S-diol-9S,10R-epoxide CCRIS 1749 Chryseno(3,4-b)oxirene-1,2-diol, 1,2,2a,3a-tetrahydro-10-methyl-, (1S-(1alpha,2beta,2aalpha,3aalpha))-