(S)-3-Aminopiperidin-2-one-D6 is a labelled analogue of (S)-3-Aminopiperidin-2-one (A627940). (S)-3-Aminopiperidin-2-one, is an building block , used in the synthesis of various pharmaceutical compounds. It is an intermediate in the synthesis of calpinactam derivatives, possessing antimycobacterial activity.