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(S)-2-((tert-butoxycarbonyl)amino)-3-ethoxypropanoic acid; CAS No.: 104839-00-1; (S)-2-((tert-butoxycarbonyl)amino)-3-ethoxypropanoic acid. PROPERTIES: This compound is a (S)-2-((tert-butoxycarbonyl)amino)-3-ethoxypropanoic acid appearing as off-white solid. Its molecular weight is approximately 263.28 g/mol. It has melting point around 120-125 C. The compound is moderately soluble in polar organic solvents like acetone and acetonitrile. It's moisture sensitive and may hydrolyze upon exposure to humidity. Store in tightly sealed containers under dry conditions. Keep below 25 C and protect from moisture. Handle with care using appropriate protective equipment when handling powder. APPLICATIONS: (S)-2-((tert-butoxycarbonyl)amino)-3-ethoxypropanoic acid is used in peptide synthesis as protected amino acid derivative as described in International Journal of Peptide Research. It's employed in solid-phase peptide synthesis acting as building block for bioactive peptides. Additionally, this compound serves as intermediate for synthesizing ethoxy-containing pharmaceuticals reported in Bioorganic & Medicinal Chemistry Letters. The tert-butoxycarbonyl group provides temporary protection for amine functionality during multi-step synthesis.