InChI=1S/C13H20O11/c1-4(2-3-5(14)15)6(16)12(22)24-13-9(19)7(17)8(18)10(23-13)11(20)21/h4,6-10,13,16-19H,2-3H2,1H3,(H,14,15)(H,20,21)