Fine chemical engineering: diphenyl oxide is called crystal geranium oil or artificial geranium oil in the perfume industry. Due to the alkaline stability of geranium oil, it is usually used for preparing essences for soaps. It is also used as a substitute of geranium oil for preparing fragrant cosmetics and deodorants.
Organic synthesis: as an intermediate of organic synthesis, it is used for the perfume industry, in synthetic resin production, and other organic synthetic products.