Solvent Red 80

Solvent Red 80 (CAS 6358-53-8), also known as Citrus Red 2 and designated E121, is an oil-soluble azo dye used to impart red and orange-red coloration in non-aqueous systems.

Where is Solvent Red 80 used?

• Plastics and polymer processing: mass-coloring polyolefins, polystyrene, and similar resins during compounding or extrusion
• Coatings and lacquers: solvent-borne systems requiring consistent hue and transparency
• Printing inks: gravure and flexographic formulations for vibrant red tones in packaging and decorative print
• Leather finishing and textile surface treatments: surface color for non-fiber substrates requiring oil-soluble properties
• It dissolves readily in organic solvents, waxes, and polymers for industrial formulations where water-based dyes are unsuitable.

Commercial specifications

• Technical grade; purity confirmed by dye content assay
• Spectrophotometric testing for quality control
• Packaging from small laboratory quantities to bulk industrial volumes