- Chemical Name:Dinitrofluorobenzene
- Chemical Family:Aromatics, Nitrobenzenes
- CAS Number:70-34-8
- Grade:Reagent Grade
- Synonyms:1-fluoro-2,4-dinitrobenzene, 2,4-dinitro-1-fluorobenzene, DNFB, Sanger's Reagent
1-Fluoro-2,4-dinitrobenzene (commonly called Sanger's reagent, dinitrofluorobenzene, DNFB or FDNB) is a chemical that reacts with the N-terminal amino acid of polypeptides. This can be helpful for sequencing proteins.