InChI=1S/C18H15ClN4O4S/c1-28(24,25)12-4-2-3-11(9-12)21-18-20-8-7-15(23-18)22-16-13(19)5-6-14-17(16)27-10-26-14/h2-9H,10H2,1H3,(H2,20,21,22,23)