009606: InChI=1.12Beta/C20H14N2O4S/c23-19-11-9-17(13-5-1-3-7-15(13)19)21-22-18-10-12-20(27(24,25)26)16-8-4-2-6-14(16)18/h1-12H,23H,(H,24,25,26)/b22-21+