Ethyl 4-hydroxybenzoate

　　Uses and Applications

　　Food Industry: Used as a preservative in beverages, sauces, pastries, and preserved fruits. It inhibits the growth of mold and yeast, extends the shelf life of food, and is typically used at a concentration of 0.05%-0.15% of the food's mass.

　　Daily Chemical Industry: Used for the preservation of cosmetics such as face creams and lotions, as well as detergents like hand soaps. It can replace traditional chemical preservatives like sodium benzoate, helping to maintain product stability and extend shelf life.

　　Pharmaceutical Industry: Widely used for antibacterial preservation in liquid and semi-solid preparations, such as eye drops and ointments. It prevents microbial contamination and ensures the quality and safety of the medication.

　　Other Fields: In the chemical industry, it can be used to produce plastic antioxidants and coating preservatives; in the textile industry, it is used for antimicrobial finishing of textiles, such as towels and socks, imparting short-term antimicrobial properties to the fabric and inhibiting odors caused by microbial growth.