InChI=1S/C16H28O9/c1-8(4-5-9(17)16(2,3)23)6-7-24-15-12(20)10(18)11(19)13(25-15)14(21)22/h9-13,15,17-20,23H,1,4-7H2,2-3H3,(H,21,22)