Used primarily in peptide synthesis, it serves as a protected form of serine, ensuring the amino acid remains stable during reactions. The tert-butyl group protects the serine side chain, preventing unwanted interactions while building peptide chains. This compound is particularly useful in solid-phase peptide synthesis, where selective deprotection is required. It is also employed in the production of pharmaceuticals and bioactive peptides, where precise control over amino acid incorporation is essential. Its hydrochloride form enhances solubility, making it easier to handle in various organic solvents.