{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Spectroscopy and Structure Identification", "refinement": "This problem involves identifying an organic compound based on its molecular formula and spectral data from IR and NMR.", "specific_scope": "The task is to analyze the provided IR and NMR data to match it with one of the candidate compounds that fits the molecular formula C9H11NO2.", "goal": "Determine the correct compound from the given candidates that corresponds to the spectral data and molecular formula."}, "summary": "This problem requires the identification of an organic compound (C9H11NO2) using IR and NMR spectral data. The IR spectrum shows characteristic bands indicating functional groups, while the NMR spectrum provides information about the hydrogen environments in the molecule. By analyzing the data, we can match the compound to one of the candidates, ultimately identifying ethyl 4-aminobenzoate as the correct answer."}