Used in organic synthesis for preparing -caprolactam precursors pharmaceutical intermediates and nylon-6 analogs as well as in biochemical research for enzyme inhibition studies.

It serves as a synthetic intermediate and protected form of -aminocaproic acid for peptide synthesis and polymer chemistry applications.

Ethyl 6-aminohexanoate hydrochloride (CAS 3633-17-8) is the hydrochloride salt of the ethyl ester of 6-aminohexanoic acid with molecular formula CHClNO and molecular weight 195.69 gmol appearing as a white crystalline powder.