1,4-Bis(4-Cyanostyryl)benzene
1,4-Bis(4-cyanostyryl)benzene is a symmetrical stilbene-type optical brightener with two cyano groups, supplied as a pale yellow crystalline powder at 98% purity.
The extended conjugated system absorbs ultraviolet light and re-emits it as visible blue fluorescence, which cancels the yellow cast in substrates and makes whites appear brighter. Because the molecule is rigid, thermally stable and essentially insoluble in water, it is suited to high-temperature polymer processing and to solvent-based pad applications.
The powder should be stored in a dry, closed container away from direct sunlight and sources of ignition, since prolonged light exposure reduces fluorescence efficiency.
• Textile brightening: applied in exhaust and pad-dry-cure processes on polyester, acetate and blends to boost whiteness.
• Plastics and masterbatch: incorporated into polyester, PVC and styrenic compounds as a whitening agent that tolerates melt processing temperatures.
• Detergent and paper applications: used in solvent or dispersion form to restore the whiteness of cellulosic and synthetic substrates.
• Optical and photophysical research: a reference fluorophore for studying stilbene photophysics, energy transfer and dye aggregation.
Product Name: 1,4-Bis(4-Cyanostyryl)benzene
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