InChI=1S/C12H9ClF3N3O/c1-17-9-6-18-19(11(20)10(9)13)8-4-2-3-7(5-8)12(14,15)16/h2-6,17H,1H3 Norflurazon CNC1=C(Cl)C(=O)N(N=C1)c2cccc(c2)C(F)(F)F CNC1=C(Cl)C(=O)N(N=C1)c2cccc(c2)C(F)(F)F