Chemical Abstract Service (CAS) registry numbers are crucial identifiers for chemical substances, ensuring precision and clarity in research and commerce. For those in the polymer, textile, and coatings industries, CAS 5089-22-5 refers to a critical additive known as Optical Brightener KCB or Fluorescent Brightener 367. This compound, with the molecular formula C24H14N2O2, plays a pivotal role in enhancing the visual aesthetics of various materials by providing superior whitening and brightening effects.

Optical Brightener KCB is characterized by its appearance as a yellow-green crystalline powder. Its primary function is to absorb ultraviolet (UV) light, typically in the 300-400 nm range, and re-emit it as visible blue light. This process effectively masks the natural yellow or dull hues present in many polymers, fibers, and coatings, making them appear significantly whiter and brighter to the human eye. For manufacturers seeking to buy this essential chemical, understanding its specific properties is key to successful application. Its melting point, usually between 210-212°C, indicates good thermal stability, allowing it to be used in processes involving elevated temperatures without undergoing significant decomposition.

The applications of CAS 5089-22-5 are widespread across several industrial sectors. In the plastics industry, it is incorporated into materials such as PVC, EVA, and polyethylene to improve their visual appeal. For textile and fiber manufacturers, it enhances the whiteness of synthetic fibers, yarns, and finished fabrics. The coatings industry also benefits from its use in paints, inks, and lacquers to achieve brighter whites and cleaner, more vibrant colors. The efficacy of this optical brightener stems from its ability to be dispersed effectively in organic media, although it is largely insoluble in water.

For procurement professionals and formulators, sourcing chemical ingredients like CAS 5089-22-5 requires diligence. Selecting a reliable manufacturer and supplier is essential to ensure consistent product quality, high purity (typically ≥99%), and competitive pricing. A reputable supplier can provide comprehensive technical data, safety information, and samples for testing, facilitating seamless integration into production processes. As a dedicated supplier, we offer CAS 5089-22-5 with a strong commitment to quality and performance, backed by our manufacturing expertise.

We invite you to consider Optical Brightener KCB from our product portfolio for your formulation needs. Whether you are looking to buy for plastic films, synthetic fibers, or high-performance coatings, our product offers a reliable solution for achieving superior brightness and whiteness. Contact us today to request a quote or a sample, and let us help you enhance the visual appeal of your products with our premium chemical additives.