[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an alkane-alpha,omega-diamine in which the two amino groups are separated by eight methylene groups. It derives from a hydride of an octane."}, {"from": "gpt", "value": "[C][Branch1][=Branch1][C][C][C][C][N][C][C][C][N]"}]