Phenylthiohydantoin-(N?-phenylthiocarbamyl)-lysine is widely utilized in research focused on:

• Protein Sequencing: This compound is commonly used in the Edman degradation method, which allows researchers to determine the amino acid sequence of proteins. Its ability to selectively react with the amino terminal of peptides makes it invaluable in proteomics.
• Biochemical Assays: It serves as a reagent in various biochemical assays, helping to identify and quantify proteins in complex mixtures. This is particularly useful in drug development and diagnostics.
• Pharmaceutical Development: The compound is explored in the synthesis of novel pharmaceuticals, particularly those targeting specific proteins. Its unique structure can lead to the development of drugs with improved efficacy and reduced side effects.
• Research in Enzyme Activity: It is used in studies investigating enzyme kinetics and mechanisms, providing insights into how enzymes interact with substrates, which is crucial for understanding metabolic pathways.
• Analytical Chemistry: The compound aids in the development of analytical methods for detecting and quantifying amino acids and peptides, enhancing the accuracy of research in food science and nutrition.