SMILES: CN1C=C(N=C1)CC(C(=O)O)N
Description: The molecule is a methylhistidine in which the methyl group is located at N-1. It has a role as a human urinary metabolite. It is a non-proteinogenic alpha-amino acid and a methylhistidine. It is a tautomer of a 1-methylhistidine zwitterion.