H-β-HomoThr-OH hydrochloride is a non-proteinogenic amino acid derivative, specifically the hydrochloride salt of β-homothreonine. Its chemical structure features a β-amino acid backbone with an additional hydroxymethyl group, distinguishing it from the canonical α-amino acid threonine. This compound is a chiral building block, often used in research and development. This modified amino acid serves as a crucial intermediate in the synthesis of complex peptides and peptidomimetics. Its primary application lies in medicinal chemistry for constructing novel bioactive molecules, including potential drug candidates and enzyme inhibitors. The β-amino acid scaffold can enhance metabolic stability and alter the conformational properties of peptides compared to their α-amino acid counterparts. As a specialty chemical, it is utilized in academic and industrial laboratories focused on peptide-based drug discovery and chemical biology. Handling requires standard precautions for laboratory chemicals.