InChI=1/C18H14N4O5S/c23-18(20-14-6-8-16(9-7-14)22(24)25)13-3-1-5-17(11-13)28(26,27)21-15-4-2-10-19-12-15/h1-12,21H,(H,20,23)/f/h20H A294A832415274B4