[{"from": "human", "value": "Could you provide a description of this molecule? [C][O][S][=Branch1][C][=O][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is a methanesulfonate ester resulting from the formal condensation of methanesulfonic acid with methanol. It has a role as an alkylating agent, a genotoxin, a carcinogenic agent, a mutagen and an apoptosis inducer."}]