InChI=1S/C16H19NO9/c18-5-6-1-2-7-8(6)3-17-4-9(7)15(24)26-16-12(21)10(19)11(20)13(25-16)14(22)23/h3-4,6,10-13,16,18-21H,1-2,5H2,(H,22,23)