Cyanogen bromide is an inorganic compound with the chemical formula CNBr. Cyanuric bromide is a white crystalline powder, soluble in water, benzene, soluble in ethanol and ether, mainly used in organic synthesis, can also be used for extracting gold cyanide agents, insecticides, etc.

Here are some of the main uses of cyanogen bromide:

1. Protein sequencing: One of the most important applications of cyanogen bromide in protein chemistry is for the sequencing of proteins.

2. Peptide synthesis: In peptide synthesis, cyanogen bromide can be used to introduce amino acids at specific locations to synthesize peptides with specific sequences.

3. Organic synthesis: Cyanuric bromide also has certain applications in organic synthesis, it can be used as a brominating agent or cyanide agent to participate in specific chemical reactions, such as the synthesis of ketones and esters.

4. Analytical chemistry: In analytical chemistry, cyanide bromide can be used to isolate and identify peptides and proteins in complex mixtures.

5. Pesticides and insecticides: Although this is not its primary use, cyanogen bromide is also used as a pesticide and insecticide in some cases.