[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a bromoalkane that is propane carrying a bromo substituent at position 1. It has a role as a neurotoxin and a solvent. It is a bromoalkane and a bromohydrocarbon."}, {"from": "gpt", "value": "[C][C][C][Br]"}]