Methyl 4-hydroxybenzoate is widely used as a preservative in cosmetics, personal care products, and pharmaceuticals due to its antimicrobial properties. It helps prevent the growth of bacteria, yeast, and mold, extending the shelf life of these products. In the food industry, it is employed as a food additive to preserve items like baked goods, beverages, and processed foods. Additionally, it is utilized in topical medications and ointments to maintain their stability and effectiveness. Its ability to inhibit microbial growth makes it a valuable component in maintaining product integrity and safety across various industries. This high-purity grade (≥99.0%) is particularly suitable for use in insect cell culture media as an antimicrobial preservative to ensure sterility.