[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a one-carbon compound in which the carbon is attached by single bonds to three hydrogen atoms and one bromine atom. It is produced naturally by marine algae. It has a role as a fumigant insecticide, a marine metabolite and an algal metabolite. It is a member of methyl halides, a member of bromomethanes and a bromohydrocarbon."}, {"from": "gpt", "value": "[C][Br]"}]