2,4,6-phenanthrenetriol, 9,10-dihydro-7,8-dimethoxy- 3,5,7-Trihydroxy-1,2-dimethoxy-9,10-dihydrophenanthrene 7,8-Dimethoxy-9,10-dihydro-phenanthrene-2,4,6-triol 7,8-dimethoxy-9,10-dihydrophenanthrene-2,4,6-triol Coeloginanthridin InChI=1/C16H16O5/c1-20-15-10-4-3-8-5-9(17)6-12(18)14(8)11(10)7-13(19)16(15)21-2/h5-7,17-19H,3-4H2,1-2H