InChI=1/C14H12N2O4S2/c1-2-11-5-3-6-12(9-11)16-22(19,20)14-8-4-7-13(10-14)21(15,17)18/h1,3-10,16H,(H2,15,17,18)/f/h15H2 0FDAF1E18C975A66