InChI=1/C14H9N3O5S/c18-13(19)8-2-1-3-9(6-8)17-23(21,22)10-4-5-11-12(7-10)16-14(20)15-11/h1-7,17H,(H,18,19)/p+1/fC14H10N3O5S/h15-16H/q+1 8E8F00285112CFB5