[{"from": "human", "value": "Provide a description of this molecule. [C][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][S][N][=O]"}, {"from": "gpt", "value": "The molecule is an L-cysteine derivative in which the sulfur atom carries a nitroso substituent. A cell-permeable low-molecular-weight nitrosothiol and nitric oxide donor. It has a role as a vasodilator agent, a platelet aggregation inhibitor and a hematologic agent. It is a L-cysteine derivative and a nitrosothio compound."}]