[{"from": "human", "value": "Describe this molecule. [C][Branch1][=C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C][C][C][C][C][C][C][C][O]"}, {"from": "gpt", "value": "The molecule is an omega-hydroxy-long-chain fatty acid that is octadecanoic (stearic) acid in which one of the hydrogens of the terminal methyl group has been replaced by a hydroxy group. It has a role as an apoptosis inducer. It is a hydroxyoctadecanoic acid and an omega-hydroxy-long-chain fatty acid. It is a conjugate acid of a 18-hydroxyoctadecanoate."}]