DL Glutamine is an alpha-amino acid that consists of butyric acid bearing an amino substituent at position 2 and a carbamoyl substituent at position4. It has a role as a fundamental metabolite. It is an alpha-amino acid and apolar amino acid. It contains a 3-amino-3-oxopropyl group. It is a conjugate base of a glutaminium. It is a conjugate acid of a glutaminate.