[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][Branch2][Ring1][=Branch1][C][C][C][=C][Branch1][Ring2][C][Ring1][=Branch1][C@H1][C][C][C][=Branch1][Branch1][=C][C][Ring1][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is a sesquiterpenoid that is (S)-beta-macrocarpen-15-ol in which the hydroxy group has been oxidised to an aldehyde group. The second step in the biosynthesis of the sesquiterpene phytoalexin zealexin A1 from (S)-beta-macrocarpene in maize. It is a sesquiterpenoid and an aldehyde. It is functionally related to a (S)-beta-macrocarpen-15-ol."}]