It is a free-radical photoinitiator, mainly used in free-radical UV curing systems, such as coatings, inks, adhesives, etc. It is also an intermediate for organic pigments, medicines, fragrances, and pesticides. In the pharmaceutical industry, it is mainly used in Chemicalbook to produce dicyclohexylpiperidine, benztropine hydrobromide, diphenhydramine hydrochloride, etc. This product is also a styrene polymerization inhibitor and a fragrance fixative, which can impart a sweet smell to fragrances, and is widely used in perfumes and soap essences.