Fluorescent Brightener 367
Fluorescent Brightener 367 (CAS 5089-22-5) is a benzoxazolyl-naphthalene optical brightener with formula C₂₄H₁₄N₂O₂ and MW 362.38. It exhibits strong blue fluorescence under UV light and is used to enhance whiteness and brightness in plastics, fibers and coatings. Note: this CAS corresponds to Fluorescent Brightener 367, not Solvent Orange 60.
• Plastics: whitening and brightening of PVC, polystyrene and polyolefins.
• Synthetic fibers: whitening of polyester and polyamide fibers.
• Coatings and inks: optical brightening in surface coatings and printing inks.
• Polymer processing: heat-stable brightener for high-temperature melt processing.
Product Name: Fluorescent Brightener 367
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