InChI=1S/C15H19NO9/c16-8-4-2-1-3-7(8)14(22)23-5-6-24-15-11(19)9(17)10(18)12(25-15)13(20)21/h1-4,9-12,15,17-19H,5-6,16H2,(H,20,21)