InChI=1/C19H16N4O3S/c1-11-7-13(26-22-11)8-23-9-15(14-5-3-4-6-16(14)23)17(24)18(25)21-19-20-12(2)10-27-19/h3-7,9-10H,8H2,1-2H3,(H,20,21,25)/f/h21H 4D7B16DB79740A10