InChI=1/C17H15N3O5S/c1-24-13-6-10-11(7-14(13)25-2)19-17(26)20(16(10)23)18-8-9-4-3-5-12(21)15(9)22/h3-8,21-22H,1-2H3,(H,19,26)/b18-8+/f/h19H 6BEF8DE39255E475