InChI=1/C18H20N4O4S/c1-12(16-7-2-3-10-19-16)20-17(23)18(24)21-14-5-4-6-15(11-14)27(25,26)22-13-8-9-13/h2-7,10-13,22H,8-9H2,1H3,(H,20,23)(H,21,24)/t12-/m1/s1/f/h20-21H 7E5B486943B1F8C1