[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][C][C][C][C][C][/C][=C][/C][=O]"}, {"from": "gpt", "value": "The molecule is an undecenal in which the C=C bond is located at the 2-3 position. It is an undecenal, a n-alk-2-enal and a volatile organic compound."}]