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