SMILES: C1=CC(=C(C=C1CC(C(=O)O)N)O)O
Description: The molecule is a hydroxyphenylalanine carrying hydroxy substituents at positions 3 and 4 of the benzene ring. It has a role as a human metabolite. It is a hydroxyphenylalanine, a tyrosine derivative and a non-proteinogenic alpha-amino acid.