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