(R)-3-Aminopyrrolidine is a chiral, non-natural amino acid derivative featuring a pyrrolidine ring substituted with an amino group at the 3-position. It is a versatile and valuable building block in organic synthesis, particularly in the pharmaceutical industry. Its primary and most significant application is as a key chiral intermediate in the synthesis of various active pharmaceutical ingredients (APIs). The (R)-enantiomer is specifically utilized in the production of drugs such as the antidiabetic agent saxagliptin, where it serves as a crucial structural component. The pyrrolidine scaffold is a privileged structure in medicinal chemistry, and the chiral amino group allows for the construction of molecules with specific biological activities, often targeting enzymes or receptors. Beyond its role as a pharmaceutical intermediate, (R)-3-aminopyrrolidine is also employed as a ligand in asymmetric catalysis and as a building block for more complex heterocyclic systems in research settings. It is typically handled as a hygroscopic solid or in solution and requires storage under inert conditions.