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