InChI=1/C19H16N4O2S2/c1-13-2-4-14(5-3-13)18-12-26-19(23-18)15(10-20)11-22-16-6-8-17(9-7-16)27(21,24)25/h2-9,11-12,22H,1H3,(H2,21,24,25)/b15-11-/f/h21H2 C516C541E9487F21