Used primarily as an intermediate in organic synthesis, especially in the production of pharmaceuticals and agrochemicals. Its reactive acyl chloride group allows it to form amide and ester derivatives, making it valuable in constructing complex molecules. Commonly employed in the synthesis of active ingredients in crop protection products due to its ability to modify molecular structures for enhanced biological activity. Also utilized in research settings for developing novel compounds with potential therapeutic effects. Handling requires caution due to its moisture sensitivity and potential for causing irritation.