[{"from": "human", "value": "Describe this molecule. [C][C][Branch1][C][C][C][=Branch1][C][=C][C][/C][=C][Branch1][C][\\C][/C][=O]"}, {"from": "gpt", "value": "The molecule is a hexadienal that is hexa-2,5-dienal substituted by a an isopropyl group at position 5 and a methy group at position 2 (the 2E-stereoisomer)."}]