Used as a selective reducing agent in organic synthesis, particularly for reductive amination reactions. It is effective in converting aldehydes and ketones to amines in the presence of other functional groups, due to its stability in protic solvents and mild reactivity. Commonly employed in peptide chemistry and bioconjugation for labeling biomolecules, where its water tolerance and selectivity are advantageous. Also utilized in the synthesis of pharmaceuticals and fine chemicals where controlled reduction is required.