InChI=1/C18H16N4O2S/c23-17(14-9-12-3-1-2-4-15(12)20-18(14)24)19-13-7-5-11(6-8-13)16-10-25-22-21-16/h5-10H,1-4H2,(H,19,23)(H,20,24)/f/h19-20H 144D6A68B38CEBA4