Used as a dietary supplement to treat zinc deficiency and support immune function. Commonly found in lozenges aimed at reducing the duration of the common cold when taken at the onset of symptoms. Employed in the pharmaceutical industry as a reagent or stabilizer in drug formulations. Serves as a catalyst or precursor in the synthesis of other zinc-containing compounds. Utilized in some oral care products for its antimicrobial properties. Also applied in small-scale chemical processes where a soluble zinc source is required.