Acid red 33

Acid Red 33 (CAS 3567-66-6), also known as CI 17200, Azo Fuchsine, and D&C Red No. 33, is a synthetic azo dye approved for use across food, cosmetic, and industrial coloring applications.

It delivers a bright, bluish-red hue with strong tinctorial strength, making it a reliable option for formulators and buyers seeking consistent batch-to-batch color performance in various manufacturing sectors.

In personal care and cosmetics, D&C Red No. 33 is used to color hair dyes, lipsticks, and rinse-off products where regulatory approval for skin contact is required for consumer safety and compliance.

Food-grade applications include coloring confectionery, beverages, and maraschino cherries in markets where the dye holds regulatory clearance. Textile and leather processors use CI 17200 to dye protein-based fibers.

This includes materials such as wool and silk, where its acid dye chemistry bonds effectively under low-pH dyebath conditions. Paper manufacturers apply it for decorative and specialty paper coloring.

Surface uniformity and shade consistency are critical in these applications. Acid Red 33 is supplied as a powder or granule, with water-soluble formulations available for liquid concentrate preparation.

Food-grade and cosmetic-grade specifications are the most commercially relevant, with purity levels typically meeting FD&C or D&C certification standards depending on the target market and intended use.

Technical grade is available for textile and industrial use. Our product ensures high stability and meets rigorous quality benchmarks for global distribution and industrial chemical processing requirements.