O-Benzyl-L-tyrosine is a derivative of the natural amino acid tyrosine. It is used as a building block in a variety of applications, including solution-phase peptide synthesis, and the production of pharmaceuticals and other chemicals. Product Application O-Benzyl-L-tyrosine can be used as a building block in the synthesis of amphiphilic block co-polypeptides, due to their potential applications in biomedical fields. For instance, it is used to prepare Lysine-block-tyrosine block copolypeptides, which are useful as targeted drug carriers, functional nanobioreactors, and biomimetic encapsulants in the biomedical fields.