Sulfan Blue

Sulfan Blue (CAS 129-17-9), also known as Acid Blue 1 and Patent Blue V, is a synthetic triarylmethane dye used to impart bright blue coloration.

Where is Sulfan Blue used?

• Food and beverage: colorant for confectionery, soft drinks and processed foods
• Textile and leather: dye for protein-based and synthetic fibers
• Printing and packaging: ink formulations
• Paper: surface treatments and pulp dyeing
• It achieves uniform penetration under acidic dyebath conditions.

Good to know: Purity levels and dye content specifications vary by grade and should be confirmed against the relevant regional food additive or industrial standards.

Commercial specifications

• Purity levels and dye content specifications vary by grade