InChI=1S/C16H24O11/c1-4-3-6(8(5(2)13(20)21)7(4)14(22)23)26-16-11(19)9(17)10(18)12(27-16)15(24)25/h4-12,16-19H,3H2,1-2H3,(H,20,21)(H,22,23)(H,24,25)