137359-82-1

(1R,2R,3S,3aR,3a1S,4R,6aR,7aS,11S,11aS,11bR)-1,2,3a,4,11-Pentahydroxy-3,3a1,8,11a-tetramethyl-1,2,3,3a,3a1,4,6a,7,7a,11,11a,11b-dodecahydrodibenzo[de,g]chromene-5,10-dione