Used primarily as an intermediate in organic synthesis, this compound plays a key role in the preparation of pharmaceuticals and fine chemicals. Its reactive acyl chloride group allows it to form esters and amides under controlled conditions, making it valuable in constructing complex molecules. It is particularly useful in the development of bioactive compounds where the methoxy and hydroxyl functionalities are leveraged for their electronic or steric effects. Commonly employed in the synthesis of UV absorbers and photostabilizers for cosmetics and polymers due to its ability to absorb ultraviolet light. Also finds use in the creation of specialty resins and functional materials where tailored aromatic building blocks are required.