InChI=1/C15H13N3O4S/c16-14-13(11-3-1-2-4-12(11)15(19)22-14)18-9-5-7-10(8-6-9)23(17,20)21/h1-8,18H,16H2,(H2,17,20,21)/f/h17H2 6A330CBBCA7E1C73