[{"from": "human", "value": "Describe this molecule. [C][Se]"}, {"from": "gpt", "value": "The molecule is an organoselenium compound that is a selenium analogue of methanol, comprising a methyl group covalently bound to a selenol group. It has a role as a metabolite and an antineoplastic agent. It is a one-carbon compound and an organoselenium compound."}]