InChI=1S/C19H26N2O9/c20-7-1-2-8-21-17(25)16-14(29-16)9-3-5-10(6-4-9)28-19-13(24)11(22)12(23)15(30-19)18(26)27/h3-6,11-16,19,22-24H,1-2,7-8,20H2,(H,21,25)(H,26,27)