9H-pyrano[2,3-f]-1,4-benzodioxin-9-one, 2,3-dihydro-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-(hydroxymethyl)-, (2R,3R)- Daphneticin InChI=1/C20H18O8/c1-24-13-7-11(8-14(25-2)17(13)23)18-15(9-21)27-20-12(26-18)5-3-10-4-6-16(22)28-19(10)20/h3-8,15,18,21,23H,9H2,1-2H3/t15-,18-/m1/s rel-(2R,3R)-3-(4-hydroxy-3,5-dimethoxyphenyl)-2-(hydroxymethyl)-2,3-dihydro-9H-[1,4]dioxino[2,3-h]chromen-9-one