With its soft and penetrating lasting sweet fragrance, benzyl cinnamate has become a key raw material in the spice essence industry, which has dual functions of “fragrance” and “fragrance fixation”, with the warm spicy fragrance of cinnamon, jasmine and rose like elegant floral fragrance. When used as a fixative, the ester group and aromatic ring in its molecular structure can form weak interaction with other volatile components in the essence system, slow down the volatilization rate of aroma molecules, and extend the fragrance retention time of essence from several hours to tens of hours, especially for products such as perfumes and solid perfume that need long-term fragrance retention. In the composite application, it can be used as a “skeleton component” to blend the sharp sense of rose, jasmine, lily of the valley and other floral essence, making the aroma more mellow and natural; It can also be matched with flavor substances such as vanillin and ethyl maltol to accurately simulate the burnt and sweet smell of cinnamon rolls, roasted nuts and other foods. It is widely used in the formulation of baking essence, candy essence and beverage essence. Because it meets food level safety standards, there is no need to worry about the conflict between flavor and safety. ​

In the daily chemical industry, benzyl cinnamate has become an ideal fragrance ingredient for various care and fragrance products due to its excellent chemical stability and broad-spectrum compatibility. In cleaning products such as soap and shower gel, it can withstand alkaline formula environments and the stimulation of surfactants. Even after high-temperature saponification or long-term storage, it will not undergo hydrolysis or deterioration, and will always maintain stable aroma release. At the same time, its mild molecular structure will not cause irritation to the skin, making it suitable for various care products from adults to infants. In perfume, cologne and other fragrance products, as the “connecting element” of the middle base note tone, it can carry on the fresh feeling of the top note tone and the heavy feeling of the base note tone. For example, in the wood-based perfume, it can soften the cold and hard smell of cedar and sandalwood, and add a warm and sweet feeling; In the flower and fruit perfume, it can extend the lingering time of top note such as roses and oranges, and make the aroma level more coherent. In addition, in skincare products such as moisturizers and hand creams, it can also form a synergistic effect with moisturizing ingredients such as shea butter and ceramides, giving the product a pleasant aroma without affecting the penetration and absorption of skincare ingredients. ​

The application value of benzyl cinnamate in the pharmaceutical field stems from its clear biological activity and good medicinal compatibility. Modern pharmacological research has confirmed that the cinnamoyl group in its molecule can inhibit the release of inflammatory factors such as TNF – α and IL-6, while the benzyl ester structure can enhance antibacterial activity, with inhibition rates of over 80% against common pathogenic bacteria such as Staphylococcus aureus and Escherichia coli. This makes it an important intermediate for synthesizing anti-inflammatory and antibacterial drugs, such as the preparation of topical drug precursors for treating skin inflammation through esterification reactions. In the application of formulations, it is often used as an “active excipient” for topical preparations such as ointments and creams. It can not only reduce the irritation of drugs to the skin due to its mild properties, but also improve the absorption efficiency of the main ingredients by promoting the permeability of the stratum corneum of the skin. In addition, in some oral care drugs (such as mouthwash and oral gel), it can also play a dual role of bacteriostasis and taste correction, mask the bitter taste of drugs, and inhibit the growth of harmful oral bacteria. ​

In the field of chemical engineering, benzyl cinnamate is a multifunctional chemical intermediate and process aid. The carbon carbon double bonds and ester groups in its molecular structure provide abundant sites for chemical modification. Through hydrogenation reaction, it can be converted into hydrogenated benzyl cinnamate, which is used to synthesize alkyd resins with excellent weather resistance. These resins are widely used in outdoor coatings, ship paints and other products, and can significantly improve the anti UV aging performance of coatings; Cinnamic acid and benzyl alcohol can be prepared through hydrolysis reaction. The former is a key raw material for synthesizing photosensitive resins, while the latter can be used to produce benzyl alcohol based solvents, which are suitable for the preparation needs of high-end inks. At the same time, due to its good solubility for both polar and non-polar substances, it can be used as a co solvent to improve the solubility of polymers in polymer material synthesis processes. For example, in the synthesis of polyimide resin, it can promote the uniform dispersion of monomers, reduce bubbles and defects after resin molding, and enhance the mechanical properties of products. ​