InChI=1/C16H14N4O4S2/c1-8-9(2)26-15-13(8)14(22)18-16(19-15)25-7-12(21)17-10-3-5-11(6-4-10)20(23)24/h3-6H,7H2,1-2H3,(H,17,21)(H,18,19,22)/f/h17,19H 8655638BDD43B6C3