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