SMILES: CC(=O)NCC[C@@H](C(=O)[O-])[NH3+]
Description: The molecule is zwitterionic form of N(4)-acetyl-L-2,4-diaminobutyric acid having an anionic carboxy group and a protonated nitrogen. It is a tautomer of a N(4)-acetyl-L-2,4-diaminobutyric acid.