InChI=1/C13H15N3O4S/c1-2-5-16-12(20)14-15-13(16)21-7-11(19)9-4-3-8(17)6-10(9)18/h3-4,6,17-18H,2,5,7H2,1H3,(H,14,20)/f/h14H 8E15F870EC41366E