InChI=1/C15H18N4O2S/c20-12-7-6-10(8-13(12)21)9-16-19-14(17-18-15(19)22)11-4-2-1-3-5-11/h6-9,11,20-21H,1-5H2,(H,18,22)/b16-9-/f/h18H A3AFFCBF8601AA2C