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Activator reagents Chemical intermediate Active Pharmaceutical Ingredient Phenylhydrazine Photographic chemical Hydantoins Nucleoside Triazoles & Tetrazoles Fluoro aromatics Furan derivatives Emulsifier New Products Biocides Bipyridine for Ruthenium Dyes Sulfurizing reagents Light Stabilizer/UV absorber Chrial product   Product ---- Light Stabilizer/UV absorber   UV-622 CAS NO. : 65447-77-0 Appearance : White coarse powder or yellowish granular Melting point : 50-70℃ Assay : 99.0%min

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