Finding the right excipient that matches your needs as well as regulatory demands can be a complicated challenge in formulation. With our application know-how and regulatory expertise, we support you in every step of development, scale-up, and production. As part of our EMPROVE ® Program, our raw materials are offered with extensive documentation facilitating compliance of your pharma and biopharma product, full supply chain transparency and risk mitigation. Our SAFC ® portfolio of high-quality products for biopharmaceutical and pharmaceutical formulation and production withstands strict quality control procedures and is produced according to applicable cGMP guidelines. Application Benzalkonium chloride is typically used as a preservative in liquid formulations, e.g. for topical, ophthalmic, nasal and parenteral applications. It is effective against a wide range of bacteria, yeast and fungi. Due to a defined C12:C14 ratio with high batch-to-batch consistency, Benzalkonium chloride provides higher solubility and antimicrobial activity. It can be used in combination with thimerosal, disodium edetate and benzyl alcohol to further increase antimicrobial activity. This product is also available as 50% aqueous solution