InChI=1S/C17H22O9/c1-4-5-8-6-9(23-2)14(24-3)10(7-8)25-17-13(20)11(18)12(19)15(26-17)16(21)22/h4,6-7,11-13,15,17-20H,1,5H2,2-3H3,(H,21,22)