Used primarily in organic synthesis, 2,2'-Oxydiacetyl Chloride is a bifunctional diacid chloride that serves as a key reagent for introducing the oxdiacetyl linker (-COCH₂OCH₂CO-) into various compounds. It is particularly valuable in the production of polymers and resins via polycondensation with diols and diamines, where it enhances thermal stability and mechanical properties. Additionally, it is employed as an intermediate in the synthesis of specialty chemicals, including pharmaceuticals and agrochemicals. Its high reactivity with alcohols and amines makes it useful for creating diesters and diamides, which are foundational in many industrial applications.