Used as an intermediate in the production of phenolic resins (for coatings, adhesives, and electrical insulation), antioxidants, dyes, and pharmaceuticals. Commonly employed in the synthesis of fragrances (in small amounts due to its distinct odor) and disinfectants due to its antiseptic and antimicrobial properties. Found in industrial biocides, preservatives, cleaning products, and cosmetics. Handle with care due to toxicity and potential skin and respiratory irritation.

Also used in biological and medical research to study uremic toxins, metabolic disorders, and gut microbiota metabolism, as it is a naturally occurring metabolite produced by intestinal microorganisms in humans, associated with conditions like chronic kidney disease.