4.6- difluoro-l,3-dinitrobenzene

DFDNB is the acronym for an aryl halide-containing compound having the structural names, l,5-difluoro-2,4-dinitrobenzene or l,3-difluoro-4,6-dinitrobenzene (Thermo Fisher). The reagent... 

The reaction between 4,6-dichlorobenzene-1,3-disulfonamide and CS2 yielded the unusual benzene bis[dithiazine] (105 R = H), which is readily methylated to the derivative (105 R = Me) <84MI 723-01). Displacement of the fluorine atoms and nitro groups from l,3-difluoro-4,6-dinitrobenzene by 1,3-diphenylthiohydrazide (PhCS, NHNHPh) yielded compound (106) <80JOC3677>. 

Zahn, H., The reaction of l,3-difluoro-4,6-dinitrobenzene with fiber proteins and amino acids, Kolloid Zeitschrift, 121, 39-45, 1951. 

---