InChI=1/C16H12N2O5S/c17-24(21,22)12-7-5-11(6-8-12)18-15(19)13-9-10-3-1-2-4-14(10)23-16(13)20/h1-9H,(H,18,19)(H2,17,21,22)/f/h18H,17H2 281F6E3F63A9899C