InChI=1S/C15H16O9/c16-9(17)6-3-7-1-4-8(5-2-7)23-15-12(20)10(18)11(19)13(24-15)14(21)22/h1-6,10-13,15,18-20H,(H,16,17)(H,21,22)/b6-3+/t10-,11-,12+,13-,15+/m0/s1