InChI=1S/C16H22O9/c1-15-4-3-5(16(15,2)14(22)23)10(6(4)15)24-13-9(19)7(17)8(18)11(25-13)12(20)21/h4-11,13,17-19H,3H2,1-2H3,(H,20,21)(H,22,23)