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