Description

Disperse Blue 333 is a high-performance synthetic dye belonging to the disperse dye class, specifically engineered for hydrophobic substrates. Its primary value lies in providing excellent color fastness, brilliant shade, and consistent batch-to-batch reproducibility, which are critical for demanding industrial dyeing processes. This product is essential for manufacturers in the textile and synthetic fiber industries seeking reliable and vibrant blue coloration for polyester, acetate, and nylon materials.

Application

• Primary dyeing of polyester fibers and fabrics for apparel and home textiles.
• Coloration of acetate and triacetate fibers used in linings and specialty garments.
• Dyeing of nylon fibers for applications in sportswear, swimwear, and automotive interiors.
• Used in the mass coloration of synthetic polymers during the melt-spinning process.
• Formulation of dye mixtures and color concentrates to achieve specific navy and royal blue shades.
• Industrial applications requiring dyes with good sublimation fastness for high-temperature processing.

Basic Information

Product Name	Disperse Blue 333
CAS No.	88385-23-3
Molecular Formula	C20H17N5O6S
Molecular Weight	455.44 g/mol
Synonyms	Disperse Navy Blue S-3BG; C.I. Disperse Blue 333; Blue 333; Navilene Blue S-3BG; Dianix Navy Blue S-3BG; Foron Navy S-3BG; 1,5-Diamino-4,8-dihydroxy-2-(4-nitrophenyl)azoanthraquinone; 2-[(4-Nitrophenyl)azo]-1,5-diamino-4,8-dihydroxyanthraquinone
EINECS	Contact for details

Quality Control

Our Disperse Blue 333 is manufactured under a strict quality management system to ensure it meets the high standards required for industrial dyeing applications. Every batch is tested for critical parameters including color strength, shade, particle size distribution, and dispersion stability. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment to guarantee consistency and reliability for your production processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. The product is light-sensitive and should be stored away from direct light exposure to maintain its coloristic properties.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Purity (HPLC)	≥ 98.0%
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Particle Size	> 95% passes 80 mesh
Dispersion Stability	Stable in standard medium

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.