SMILES: C[N+](C)(C)C(CCC1=NC=C(N1)C[C@@H](C(=O)O)N)C(=O)[O-]
Description: The molecule is a L-histidine derivative that is L-histidine substituted at poisition 2 (on the imidazole ring) by a 3-carboxylato-3-(trimethylammonio)propyl group. It is an amino-acid betaine, a L-histidine derivative and a non-proteinogenic L-alpha-amino acid.