InChI=1/C15H18O9/c16-9(17)5-4-7-2-1-3-8(6-7)23-15-12(20)10(18)11(19)13(24-15)14(21)22/h1-3,6,10-13,15,18-20H,4-5H2,(H,16,17)(H,21,22)