InChI=1S/C16H28O9/c1-9(5-7-17)4-3-6-16(2,8-18)25-15-12(21)10(19)11(20)13(24-15)14(22)23/h3,6,9-13,15,17-21H,4-5,7-8H2,1-2H3,(H,22,23)/b6-3+