pacetylbenzoic

p-Acetylbenzoic acid, also known as 4-acetylbenzoic acid, is an organic compound with the chemical formula C9H8O3. It is a derivative of benzoic acid, where an acetyl group (CH3CO-) is attached to the para position of the benzene ring. This compound typically appears as a white or off-white crystalline solid. It is soluble in common organic solvents such as ethanol and acetone, and sparingly soluble in water.

The synthesis of p-acetylbenzoic acid can be achieved through various methods, including the Friedel-Crafts acylation of benzoic acid derivatives or the oxidation of related alkyl-substituted aromatic compounds. Its chemical properties are characteristic of both a carboxylic acid and a ketone. The carboxylic acid group allows it to undergo reactions like esterification and salt formation, while the acetyl group can participate in reactions typical of ketones, such as nucleophilic addition.

p-Acetylbenzoic acid finds application as a building block or intermediate in the synthesis of more complex organic molecules. It can be used in the production of pharmaceuticals, polymers, and other specialty chemicals. Its presence in research laboratories is often related to organic synthesis and medicinal chemistry studies. The compound is generally considered stable under normal storage conditions.