SMILES: C1C[C@H]([NH2+]C1)C(=O)NCC(=O)[O-]
Description: The molecule is the zwitterion of L-prolinylglycine resulting from the transfer of a proton from the hydroxy group of glycine to the amino group of proline. Major microspecies at pH 7.3. It is a tautomer of a L-prolylglycine.