InChI=1/C18H20N4O4S2/c1-10(2)21-28(25,26)15-7-13(6-5-11(15)3)20-16(23)14-8-19-18-22(17(14)24)9-12(4)27-18/h5-10,21H,1-4H3,(H,20,23)/f/h20H D62BD8C2F18883DD