SMILES: C/C=C(/C(=O)O)\\N
Description: The molecule is a non-proteinogenic alpha-amino acid. It derives from a 2-butenoic acid. It is a conjugate acid of a 2-aminobut-2-enoate. It is a tautomer of a 2-aminobut-2-enoic acid zwitterion, a 2-iminobutanoic acid and a 2-iminobutanoic acid zwitterion.