Z-Pro-OH, also known as N-tert-butoxycarbonyl-L-proline, is a chemical compound widely used in organic synthesis and peptide chemistry. With the molecular formula C11H19NO4, it serves as a key building block for the production of peptides and peptidomimetics. Z-Pro-OH is recognized for its high purity and stability, making it an essential reagent for researchers and professionals involved in peptide synthesis, drug discovery, and pharmaceutical development. Its applications extend to solid-phase peptide synthesis (SPPS), solution-phase peptide synthesis, and the customization of peptide sequences for various scientific and medical purposes.