2-Phenylbenzimidazole-5-Sulfonic Acid, widely recognized as Ensulizole or PBISA (CAS No. 27503-81-7), stands as a cornerstone compound in a diverse array of industrial applications, most notably within the personal care sector. This versatile chemical, presenting as a fine white crystalline powder, boasts a molecular formula of C13H10N2O3S and a molecular weight of 274.29 g/mol. Its unique chemical structure, featuring both phenyl and benzimidazole groups alongside a sulfonic acid functionality, grants it exceptional stability and reactivity, making it an invaluable asset in organic chemistry and advanced material science.

One of the primary and most celebrated applications of Ensulizole is its role as a highly effective ultraviolet (UV) filter in sunscreen formulations. Primarily a UVB protecting agent, it efficiently absorbs UV radiation in the 290 to 340 nanometer range, safeguarding skin from the damaging effects of sun exposure. Unlike many other UV filters, Ensulizole is water-soluble (when used as its salt form), a characteristic that lends itself to the creation of sunscreens and moisturizers with a desirable non-greasy and light feel on the skin. This aesthetic advantage has made it a preferred choice for formulators aiming to develop comfortable, everyday sun protection products. For comprehensive broad-spectrum protection, which includes the UVA range (320 to 400 nanometers), Ensulizole is typically combined with other UVA filters such as avobenzone, titanium dioxide, or zinc oxide.

Beyond its significant contribution to sun care, 2-Phenylbenzimidazole-5-Sulfonic Acid serves as a critical intermediate and building block across several other vital industries. In the pharmaceutical industry, PBISA is instrumental in the synthesis of numerous bioactive compounds, including various antibiotics, antiviral agents, and enzyme inhibitors. Its specific chemical properties allow it to act as a strong acid catalyst, facilitating complex organic synthesis pathways crucial for drug development.
Similarly, the agrochemical industry benefits from PBISA’s versatility. It is utilized in the production of advanced agrochemicals such as fungicides, herbicides, and insecticides. The incorporation of its sulfonic acid group enhances the solubility and bioavailability of the resulting compounds, thereby significantly improving their effectiveness in crop protection and yield enhancement.

Furthermore, the materials industry leverages 2-Phenylbenzimidazole-5-Sulfonic Acid in the manufacture of high-performance dyes, pigments, and optical brighteners. Its distinctive chemical architecture imparts desirable attributes to these materials, including superior thermal stability, strong affinity to various substrates, and excellent light absorption or emission properties. This contributes to the creation of products with enhanced durability, vibrancy, and functionality.

As a leading manufacturer and supplier of high-quality chemical ingredients, we understand the critical demand for purity, consistency, and reliability in compounds like 2-Phenylbenzimidazole-5-Sulfonic Acid. Our commitment to stringent quality control, from raw material sourcing to final product packaging, ensures that every batch meets the highest industry standards, including cosmetic and medicine grades. We maintain significant production capacity to consistently meet the global market's requirements, ensuring a stable and secure supply chain for our partners.
For businesses looking to buy 2-Phenylbenzimidazole-5-Sulfonic Acid (Ensulizole), we offer competitive price structures tailored to varying order volumes, alongside flexible shipping solutions designed to ensure timely delivery worldwide. We invite inquiries from potential clients seeking a dependable supplier of this essential chemical. Our dedicated customer service team is ready to provide detailed product specifications, answer any technical questions, and discuss specific purchase requirements to facilitate a seamless procurement process. We are committed to fostering long-term partnerships built on trust and mutual success.