InChI=1S/C18H30O13/c1-7(2)16(26)29-15-12(23)10(5-20)30-18(15,6-27-8(3)21)31-17-14(25)13(24)11(22)9(4-19)28-17/h7,9-15,17,19-20,22-25H,4-6H2,1-3H3