[{"from": "human", "value": "What can you tell me about this molecule? [C][C][Branch1][S][C][C][C][Branch1][C][C][O][S][=Branch1][C][=O][=Branch1][C][=O][C][O][S][=Branch1][C][=O][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is a methanesulfonate ester that is hexane-2,5-diol in which the hydrogens of the hydroxy groups are replaced by methanesulfonyl groups. It has a role as a mutagen and an alkylating agent."}]