The systematic IUPAC name for is: — IUPAC and Nomenclature Chemistry Question

💡 Solution & Explanation

The carboxylic acid group ($-COOH$) has a higher priority than the ketone ($>C=O$) group. Therefore, the parent chain is numbered starting from the carboxylic carbon (C1). The ketone is treated as a substituent at C3 with the prefix 'oxo' or 'keto'. This gives 3-Oxobutanoic acid.