InChI=1S/C17H20O9/c18-11-5-4-10(24-11)7-8-2-1-3-9(6-8)25-17-14(21)12(19)13(20)15(26-17)16(22)23/h1-3,6,10,12-15,17,19-21H,4-5,7H2,(H,22,23)/t10?,12-,13-,14+,15-,17+/m0/s1