Fluorescent Brightener 263, also known by its CAS number 99549-42-5, is a synthetic organic compound commonly used as a fluorescent whitening agent. It belongs to the class of stilbene derivatives and is characterized by its ability to absorb ultraviolet light and re-emit it as visible blue light, enhancing the brightness and whiteness of materials such as textiles, paper, and plastics. This compound is typically non-toxic and stable under normal conditions, making it suitable for various applications in the textile and paper industries. Its chemical structure allows it to effectively bind to fibers, providing long-lasting brightness. Additionally, Fluorescent Brightener 263 is often used in detergents and cleaning products to improve the appearance of fabrics and surfaces. However, its environmental impact and biodegradability are considerations in its use, as with many synthetic additives. Overall, it plays a significant role in enhancing the aesthetic qualities of consumer products while being subject to regulatory scrutiny regarding its safety and environmental effects.

Fluorescent Brightener 263

99549-42-5: Blankophor BRU, Phorwite BRU, C.I. Fluorescent Brightener 263, Fluorescent Brightener 263

Fluorescent Brightener 263 is a disulfonate that functions as a fluorescent dye. This compound has been shown to be effective in recording high-performance liquid chromatography (HPLC) results and can be used as an ion-pairing reagent for reversed-phase high-performance liquid chromatography (RPLC). Fluorescent Brightener 263 has been optimized for use with tetrasulfonate, which provides the highest sensitivity. It is also well suited for use as a fixative and fluorescence dye in combination with other compounds.

CAS 99549-42-5: Fluorescent Brightener 263

Fluorescent Brightener 263

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