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