[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an alkane that is decane which is substituted by a methyl group at positions 2 and 9. It has a role as a bacterial metabolite, a plant metabolite, a volatile oil component and a fungal metabolite. It is an alkane and a volatile organic compound."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C][C][C][C][C][C][C][Branch1][C][C][C]"}]