0 B18R2.3913 FC(F)(F)C1=CC=CC(C2=CC(Br)=NC=N2)=C1 F1967-4011 [1,0,0,0,1,0|1,0,1]=4 1 B18R2.3913 FC(F)(F)C1=CC=CC(C2=CC(Cl)=NC=N2)=C1 F1967-3901 [1,0,0,0,1,0|1,0,1]=4