Cis-4-Hydroxy-D-proline is widely used in biochemical and pharmaceutical research due to its unique structural properties. It serves as a key component in the synthesis of peptides and proteins, particularly in studies involving collagen and other structural proteins. Its hydroxyl group plays a critical role in stabilizing triple-helix structures, making it valuable for understanding collagen-related diseases and developing therapeutic agents. Additionally, it is utilized in the production of chiral catalysts and as a building block in organic synthesis for creating complex molecules with specific stereochemistry. Its applications extend to drug development, where it aids in designing compounds with enhanced bioavailability and stability.