125276-72-4 Benz(h)oxireno(5,6)benz(1,2-a)acridine-2,3-diol, 1a,2,3,13c-tetrahydro-, (1a-alpha,2-beta,3-alpha,13c-alpha)-(+-)- Dibenz(a,h)acridine 3,4-diol-1,2-epoxide