SMILES: C1CC(=O)N[C@@H]1C(=O)N[C@@H](CCC(=O)N)C(=O)[O-]
Description: The molecule is a peptide anion that is the conjugate base of pyroglutamylglutamine, obtained by deprotonation of the carboxy group; major species at pH 7.3. It has a role as a human metabolite. It is a conjugate base of a pyroglutamylglutamine.