InChI=1S/C17H22O9/c1-24-11-6-3-9(4-7-11)2-5-10(18)8-25-17-14(21)12(19)13(20)15(26-17)16(22)23/h3-4,6-7,12-15,17,19-21H,2,5,8H2,1H3,(H,22,23)