Widely used in organic synthesis, this reagent efficiently converts carboxylic acids to acid chlorides, making it valuable in the preparation of amides, esters, and peptides. It is also employed in the synthesis of pharmaceuticals, agrochemicals, and fine chemicals due to its high reactivity and selectivity. Commonly used in Vilsmeier-Haack type reactions, it helps introduce formyl groups in aromatic systems. Its liquid state and solubility in common organic solvents make it convenient for use in solution-phase reactions. Due to its moisture sensitivity, it is typically handled under anhydrous conditions in inert atmospheres.