Used as a reagent in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. It serves as a source of methylamine in reactions where controlled release of the amine is required. The trifluoroacetate counterion enhances solubility in polar organic solvents, making it suitable for peptide coupling and protection group chemistry. Also employed in the synthesis of active pharmaceutical ingredients (APIs) where mild basic conditions are needed. Its stability and ease of handling make it preferred in multi-step synthetic routes.