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CAS NO.: 173306-82-6; methyl2-((tert-butoxycarbonyl)amino)pent-4-ynoate. PROPERTIES: This protected amino acid ester features a tert-butoxycarbonyl (Boc) group attached to an amine functionality on a pent-4-ynoic acid framework, creating a molecule with potential applications in peptide synthesis and organic chemistry. The methyl2-((tert-butoxycarbonyl)amino)pent-4-ynoate typically appears as a white to off-white crystalline solid with moderate solubility in common organic solvents. Its molecular structure includes a Boc protecting group that can be selectively removed under acidic conditions and a triple bond that provides additional functionalization potential. For optimal stability and to prevent premature deprotection, this compound should be stored at 2-8 degree Celsius in a tightly sealed container under anhydrous conditions. When handling, appropriate safety measures including nitrile gloves and safety goggles are essential. This compound is sensitive to moisture and may hydrolyze in aqueous environments. In case of accidental spillage, clean the area with a damp cloth and dispose of materials according to local regulations. APPLICATIONS: The methyl2-((tert-butoxycarbonyl)amino)pent-4-ynoate serves as a versatile building block in organic synthesis, particularly for creating amino acid derivatives with alkyne functionality. The Boc protecting group provides a handle for further functionalization through selective deprotection. In peptide synthesis, this compound functions as a building block for developing peptide mimetics and other bioactive molecules. The triple bond contributes to target binding affinity and selectivity. Additionally, the molecule finds utility in materials science as a monomer for creating polymers with specific electronic and optical properties. Researchers utilizing this compound benefit from its functional group versatility, enabling the development of diverse molecular architectures for applications ranging from drug discovery to advanced materials.