InChI=1S/C16H22O9/c1-14(5-3-6-15(14,2)16(6,23)4-5)13(22)25-12-9(19)7(17)8(18)10(24-12)11(20)21/h5-10,12,17-19,23H,3-4H2,1-2H3,(H,20,21)