InChI=1/C15H18O9/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/h1-2,4-5,10-13,15,18-20H,3,6H2,(H,16,17)(H,21,22)