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