[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is an epoxide. It has a role as a mutagen. It derives from a hydride of an octane."}, {"from": "gpt", "value": "[C][C][Branch1][Ring2][O][Ring1][Ring1][C][C][C][C][C][C][O][Ring1][Ring1]"}]