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