Used as a key intermediate in the synthesis of pyrazole-based pharmaceuticals and agrochemicals. Its aldehyde functional group allows for easy modification into various derivatives, making it valuable in the development of active ingredients for pesticides, particularly insecticides and fungicides. It is also utilized in medicinal chemistry research for constructing biologically active molecules, including anti-inflammatory and antimicrobial agents. The presence of chlorine and methyl groups enhances reactivity and selectivity in coupling reactions, supporting its role in building complex heterocyclic systems.