InChI=1S/C16H17NO9/c18-8-3-1-2-7-6(5-17-10(7)8)4-9(19)25-16-13(22)11(20)12(21)14(26-16)15(23)24/h1-3,5,11-14,16-18,20-22H,4H2,(H,23,24)