InChI=1/C18H12N4O4S2/c23-18-20-14-6-5-13(9-16(14)26-18)28(24,25)21-12-3-1-11(2-4-12)15-10-22-7-8-27-17(22)19-15/h1-10,21H,(H,20,23)/f/h20H 3838DAD3E451502C