InChI=1/C20H20N4O4S/c1-20(2)8-11-15(13(25)9-20)14(10-6-4-5-7-12(10)24(27)28)16-17(21-11)22-19(29-3)23-18(16)26/h4-7,14H,8-9H2,1-3H3,(H2,21,22,23,26)/t14-/m1/s1/f/h21-22H	0686D19515321CD9