遇水或醇分解，溶于丙酮、苯。存放于密闭容器中可因分解造成的压力而引起爆炸，应于低温（5℃）存放。 用作医药中间体（例如合成茴拉西坦，又称阿尼西坦），有机合成． · 4-Methoxybenzoyl chloride can be used as radical precursor in visible-light photocatalysis to synthesize various heterocyclic compounds. · It can be used to synthesize acylphosphine ligands for the rhodium-catalyzed hydrosilylation of alkenes. · Incorporation of 4-methoxybenzoyl chloride modified indium tin oxide (ITO) as cathode for the fabrication of organic light-emitting diodes (OLEDs) has been reported. · 1,3 diketones synthesized from 4-methoxybenzoyl chloride can be used in one pot synthesis of various pyrazole derivatives. · It can also be used in the total synthesis of bioactive compounds like echinoside A and salinosporamide A.