InChI=1/C18H20N4O4S/c19-17(23)14-6-8-15(9-7-14)20-18(24)21-10-12-22(13-11-21)27(25,26)16-4-2-1-3-5-16/h1-9H,10-13H2,(H2,19,23)(H,20,24)/f/h20H,19H2 C091F7E163C0209C