Used as a precursor in the synthesis of cadmium-based nanomaterials, particularly cadmium sulfide and cadmium selenide quantum dots, which are applied in optoelectronic devices and solar cells. Employed in electroplating baths to deposit cadmium coatings for corrosion resistance in aerospace and automotive components. Serves as a catalyst or reagent in organic synthesis and polymerization reactions. Utilized in laboratories for analytical chemistry, such as in calibration and spectrophotometric analysis. Also found in some specialized pigments and stabilizers for plastics, though use is limited due to toxicity and environmental regulations.