InChI=1S/C16H17NO9/c18-9(5-7-6-3-1-2-4-8(6)17-14(7)22)25-16-12(21)10(19)11(20)13(26-16)15(23)24/h1-4,7,10-13,16,19-21H,5H2,(H,17,22)(H,23,24)