InChI=1S/C15H22O9/c16-9(17)7-5-3-1-2-4-6-8-23-15-12(20)10(18)11(19)13(24-15)14(21)22/h2,4-5,7,10-13,15,18-20H,1,3,6,8H2,(H,16,17)(H,21,22)/b4-2-,7-5+