InChI=1/C15H13N3O4S/c1-9-3-2-4-10(7-9)14(20)17-15(23)16-12-6-5-11(18(21)22)8-13(12)19/h2-8,19H,1H3,(H2,16,17,20,23)/f/h16-17H F87FCC9DB4B61919