InChI=1/C19H18N4O4S/c20-14-1-4-16(5-2-14)28(26,27)22-12-18(13-7-9-21-10-8-13)17-6-3-15(23(24)25)11-19(17)22/h1-7,11-12,21H,8-10,20H2/p+1/fC19H19N4O4S/h21H/q+1 C79BC0A6FC6C4F11