Used primarily as a reagent in organic synthesis, particularly in peptide and amino acid chemistry. It serves as a protecting group agent by introducing the cetyl carbamate group to amines, preventing unwanted reactions during multi-step syntheses. Its long alkyl chain enhances solubility in nonpolar solvents, making it useful in specific reaction environments where solubility is a challenge. Also employed in the preparation of surfactants and functionalized lipids for pharmaceutical and biochemical applications.