124508-38-9 BRN 3596686 Benz(c)oxireno(5,6)benz(1,2-h)acridine-2,3-diol, 1a,2,3,13c-tetrahydro-, (1a-alpha,2-beta,3-alpha,13c-alpha)- Dibenz(a,h)acridine 10,11-diol-8,9-epoxide