InChI=1S/C16H20O9/c1-3-4-7-5-8(17)13(9(6-7)23-2)24-16-12(20)10(18)11(19)14(25-16)15(21)22/h3,5-6,10-12,14,16-20H,1,4H2,2H3,(H,21,22)