InChI=1/C13H11N5O4S/c14-12-11(16-22-17-12)13(19)15-18-23(20,21)10-6-5-8-3-1-2-4-9(8)7-10/h1-7,18H,(H2,14,17)(H,15,19)/f/h15H,14H2 75881396EE3EF9E3