InChI=1S/C13H20O10/c1-5(4-6(14)15)2-3-7(16)22-13-10(19)8(17)9(18)11(23-13)12(20)21/h5,8-11,13,17-19H,2-4H2,1H3,(H,14,15)(H,20,21)