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 across food, textile, and industrial applications. It delivers strong tinctorial strength at low concentrations, making it a cost-effective choice for formulators and colorant buyers. In food and beverage production, Patent Blue V is approved in several regulatory markets.

It is used as a colorant for confectionery, soft drinks, and processed foods, where consistent hue and batch-to-batch stability are critical. Textile and leather processors use Acid Blue 1 to dye protein-based and synthetic fibers. This dye achieves uniform penetration under acidic dyebath conditions. In printing and packaging, it contributes to ink formulations requiring high color intensity and good substrate adhesion for various materials.

Paper manufacturers apply it in surface treatments and pulp dyeing to produce consistent blue tones in finished sheet products. Sulfan Blue is typically supplied as a powder or granular solid for easy handling. It is available in food-grade specifications aligned with regulatory requirements in markets where its use as a colorant is permitted. It is also offered in technical grade for industrial dyeing and ink applications.

Purity levels and dye content specifications vary by grade and should be confirmed against the relevant regional food additive or industrial standards. This ensures compliance with specific application requirements.