SMILES: CC1=C(C2=CC=CC=C2N1)C[C@@H](C(=O)[O-])[NH3+]
Description: The molecule is an amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of 2-methyl-L-tryptophan; major species at pH 7.3. It has a role as a bacterial metabolite. It is a tautomer of a 2-methyl-L-tryptophan.