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Technical Specifications CAS No.: 4065-45-6 Chemical Name: 5-Benzoyl-4-hydroxy-2 benzenesulfonic acid IUPAC Name: Benzenesulfonic acid, 5-benzoyl-4-hydroxy-2 Appearance: Off-white powder Melting Point: 123–124 ℃ Absorption Coefficient K (λmax=286 nm): Min. 46 Product Overview RQT® imported UV absorber UV-BP-4T is a water-soluble UV absorber. It is specially designed to protect nylon, wool, silk, rayon and leather from UV damage and improve the light fastness of dyes and
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