InChI=1S/C16H28O9/c1-15(2,22)5-4-6-16(3,23)7-8-24-14-11(19)9(17)10(18)12(25-14)13(20)21/h4-5,9-12,14,17-19,22-23H,6-8H2,1-3H3,(H,20,21)/b5-4+