Phenylperi acid

Phenylperi acid (CAS 82-76-8), commercially abbreviated as 1,8-ANS, is an aminonaphthalenesulfonic acid derivative used as a UV stabilizer and antioxidant in industrial formulations.

Where is Phenylperi acid used?

• Coatings and adhesives: protects substrates from UV-induced yellowing and mechanical property loss
• Textile and leather processing: dye intermediate and stabilizer for colorfastness and light-fading resistance
• Polymer compounding: UV stability in plastics for outdoor or high-exposure applications
• Printing inks and packaging: pigment stability and prevention of colorant degradation under light
• It functions by absorbing ultraviolet radiation and inhibiting oxidative degradation.

Good to know: Buyers should confirm purity specifications and batch consistency directly with the supplier, as grade designations vary by manufacturer. Proper storage and handling are required to maintain chemical stability.

Commercial specifications

• Drum and bag packaging for industrial procurement volumes