[{"from": "human", "value": "Generate a molecule based on this description. The molecule is an alkanethiol that is ethane substituted by a thiol group at position 1. It is added to odorless gaseous products such as liquefied petroleum gas (LPG) to provide a garlic scent which helps warn of gas leaks. It has a role as a rodenticide."}, {"from": "gpt", "value": "[C][C][S]"}]