Benzophenone-4 is a water-soluble secondary UV filter used in pharmaceutical, cosmetic, and coating formulations where broad-spectrum UV protection is required. Also known as sulisobenzone, this ingredient absorbs radiation in the UVB and UVA-II ranges, approximately 270–350 nm, making it suitable for products designed to improve light stability and UV defense in transparent or oil-free systems. For B2B buyers looking for wholesale supply, bulk order availability, OEM formulation support, and factory direct sourcing, this material is a practical option when water compatibility is essential. Its sulfonic acid group gives it high solubility in water, ethanol, and methanol, while remaining insoluble in most oils. This makes benzophenone-4 especially useful for aqueous systems where many conventional UV filters cannot be incorporated effectively. The product is supplied as an off-white to light yellow crystalline powder with a minimum assay of 98.0%. It has a molecular weight of 308.31 g/mol and a melting point in the range of approximately 140°C to 150°C with decomposition. In 1% aqueous solution, the pH is strongly acidic at 1.2–2.2, which is an important formulation consideration for manufacturers working with pH-sensitive products. Common industries and applications include cosmetics, pharmaceuticals, and coatings, particularly where UV absorption is required in clear or water-based formulations. Buyers sourcing export-ready industrial grade ingredients can use this material in finished products that need stable performance under light exposure. The minimum order quantity is 1 kilogram, making it suitable for R&D batches, pilot production, and scalable bulk procurement. Indira Ventures supplies benzophenone-4 for B2B buyers seeking reliable chemical sourcing with technical specifications that support formulation consistency. Its combination of water solubility, UV absorption range, and high purity makes it a versatile choice for manufacturers requiring a functional UV filter for industrial and commercial production.

*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.