(2S,3R)-5-Hydroxy-6,8,10-trimethoxy-2,3-dimethyl-2,3-dihydro-4H-naphtho[2,3-b]-pyran-4-one 4H-naphtho[2,3-b]pyran-4-one, 2,3-dihydro-5-hydroxy-6,8,10-trimethoxy-2,3-dimethyl-, (2S,3R)- 5-Hydroxy-6,8,10-trimethoxy-2,3-dimethyl-2,3-dihydro-benzo[g]chromen-4-one InChI=1/C18H20O6/c1-8-9(2)24-18-14(15(8)19)16(20)13-11(17(18)23-5)6-10(21-3)7-12(13)22-4/h6-9,20H,1-5H3/t8-,9+/m1/s rel-(2R,3S)-5-hydroxy-6,8,10-trimethoxy-2,3-dimethyl-2,3-dihydro-4H-benzo[g]chromen-4-one