[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][N][C][=N][C][=Branch2][Ring1][C][=C][Ring1][Branch1][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][Branch1][C][C][C][S]"}, {"from": "gpt", "value": "The molecule is a L-histidine derivative that is N,N-dimethyl-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, an antioxidant and a radical scavenger. It is an aryl thiol and a L-histidine derivative. It is a tautomer of an ovothiol C zwitterion."}]