InChI=1S/C17H19N3O9S/c18-8-1-4-10(5-2-8)30(26,27)20-11-6-3-9(7-19-11)28-17-14(23)12(21)13(22)15(29-17)16(24)25/h1-7,12-15,17,21-23H,18H2,(H,19,20)(H,24,25)