Used as an intermediate in the synthesis of other pharmaceuticals and dyes. Commonly employed in laboratories as a reagent for detecting iron(III) ions, producing a characteristic violet color. Also utilized in topical formulations for its mild anti-inflammatory and keratolytic properties, helping in the treatment of skin conditions like warts, corns, and psoriasis. Acts as a preservative in some cosmetic and personal care products due to its antimicrobial activity. Frequently applied in research settings for studying salicylate metabolism and its effects on cellular processes.