H-β-Ala-Obzl.TosOH is primarily used in peptide synthesis as a protected form of β-alanine. The benzyl ester group (Obzl) acts as a protective moiety for the carboxyl group, while the tosylate (TosOH) serves as a counterion to stabilize the compound. This chemical is particularly valuable in solid-phase peptide synthesis (SPPS) and solution-phase peptide synthesis, where selective protection and deprotection strategies are essential for constructing complex peptide sequences. It is also employed in the preparation of peptide derivatives and bioactive compounds, where β-alanine serves as a key building block. Additionally, it finds use in research settings for studying peptide structure-activity relationships and developing novel therapeutic agents.