SMILES: C1=CC=C2C(=C1)C(=CN2)C[C@H](C(=O)O)[NH3+]
Description: The molecule is the D-enantiomer of tryptophanium. It has a role as a bacterial metabolite. It is a conjugate acid of a D-tryptophan. It is an enantiomer of a L-tryptophanium.