InChI=1S/C17H22O9/c1-8(7-18)2-3-9-4-5-10(6-11(9)19)25-17-14(22)12(20)13(21)15(26-17)16(23)24/h2,4-6,12-15,17-22H,3,7H2,1H3,(H,23,24)