SMILES: CN[C@@H](CC1=C(N=CN1C)S)C(=O)O
Description: The molecule is a L-histidine derivative that is N-methyl-L-histidine substituted at positions N3 and C5 on the imidazole ring by methyl and mercapto groups respectively. It has a role as a marine metabolite, a radical scavenger and an antioxidant. It is an aryl thiol and a L-histidine derivative. It is a tautomer of an ovothiol B zwitterion.