Synonyms: (1aalpha,2β,3α,13Cα)-(-)-1a,2,3,13c-tetrahydrobenz(a)oxireno(5,6)benz(1,2-h)acridine-2,3-diol;(1aalpha,2β,3α,13Cα)-(+)-1a,2,3,13c-tetrahydrobenz(a)oxireno(5,6)benz(1,2-h)acridine-2,3-diol;(1aR,2S)-1a,2,3,13c-Tetrahydrobenzo[a][1]benzoxireno[2,3-h]acridine-2,3-diol;benzo[a]-1-benzoxireno[2,3-h]acridine-2,3-diol, 1a,2,3,13c-tetrahydro-, (1aR,2S)-