InChI=1S/C16H20O9/c17-8-23-6-2-4-9-3-1-5-10(7-9)24-16-13(20)11(18)12(19)14(25-16)15(21)22/h1,3,5,7-8,11-14,16,18-20H,2,4,6H2,(H,21,22)