InChI=1S/C16H28O10/c1-8(6-17)4-3-5-16(2,9(19)7-18)26-15-12(22)10(20)11(21)13(25-15)14(23)24/h4,9-13,15,17-22H,3,5-7H2,1-2H3,(H,23,24)/b8-4+