SMILES: C1=CC2=C(C=C1Cl)NC=C2C[C@@H](C(=O)O)N
Description: The molecule is a non-proteinogenic L-alpha-amino acid that is L-tryptophan in which the hydrogen at position 6 on the indole ring has been replaced by a chlorine. It is a non-proteinogenic L-alpha-amino acid, a L-tryptophan derivative and an organochlorine compound. It is a tautomer of a 6-chloro-L-tryptophan zwitterion.