(R)-3-Amino-2-piperidinone is a chiral heterocyclic compound featuring a piperidinone ring core with an amino group at the 3-position. It is a white to off-white crystalline powder. This compound is a key chiral building block in organic synthesis, particularly valued for its structural motif found in various biologically active molecules. Its primary and most significant application is as a crucial intermediate in the pharmaceutical industry. It serves as a key chiral synthon for the synthesis of several important drugs. Most notably, it is a fundamental building block in the production of the anticoagulant drug Apixaban (Eliquis®), a direct Factor Xa inhibitor. The (R)-configuration of the amino group is essential for the biological activity of the final API. As a versatile chiral amine, it is also employed in the synthesis of other pharmacologically active compounds and novel chemical entities. Its stability and reactivity make it a valuable reagent in medicinal chemistry research for constructing complex nitrogen-containing heterocycles.