The α-Amino-4-(methylthio)benzeneacetic acid, also known as $name$, plays a crucial role in chemical synthesis as a versatile building block for the creation of various organic compounds. Its unique structure and properties make it a valuable tool in the development of pharmaceuticals, agrochemicals, and materials. One of the key applications of $name$ is in peptide synthesis, where it serves as a protected amino acid that can be incorporated into peptide chains through solid-phase peptide synthesis (SPPS) or solution-phase methods. Additionally, $name$ is utilized in the preparation of complex organic molecules through various multi-step synthetic routes, enabling chemists to access a wide range of structurally diverse compounds for research and development purposes. Its ability to undergo various chemical transformations, such as acylation, alkylation, and reduction, makes it an indispensable building block in the synthesis of bioactive molecules and functional materials with tailored properties.