InChI=1S/C16H20O12/c1-24-6-4-5(7(14(20)21)12(26-3)11(6)25-2)27-16-10(19)8(17)9(18)13(28-16)15(22)23/h4,8-10,13,16-19H,1-3H3,(H,20,21)(H,22,23)