Description

Direct Blue 68 is a synthetic, water-soluble azo dye belonging to the direct dye class, valued for its strong affinity to cellulosic fibers. This product is engineered to deliver consistent, high-intensity blue coloration with excellent wash and light fastness properties. It is primarily used by manufacturers in the textile, paper, and leather industries seeking reliable and cost-effective dyeing solutions for bulk production.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fabrics.
• Paper Coloring: Used in the production of colored papers, tissues, and packaging materials.
• Leather Finishing: Imparts color to leather goods, including footwear, bags, and upholstery.
• Ink Formulation: A colorant component in the manufacture of certain inks and toners.
• Biological Staining: Potential use as a histological stain in laboratory settings.
• Wood Staining: Applied for coloring wood and wood-based products.

Basic Information

Product Name	Direct Blue 68
CAS No.	129290-84-2
Molecular Formula	C34H24N6Na4O16S4
Molecular Weight	992.80 g/mol
Synonyms	Direct Blue 68; C.I. 34200; Direct Blue 2B; Pontamine Blue 2B; Direct Blue 2BN; Amanil Blue 2BX; Atlantic Blue 2B; Benzo Blue 2B; Chloramine Blue 2B; Diazol Blue 2B; Sirius Blue 2B
EINECS	Contact for details

Quality Control

Our Direct Blue 68 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including spectrophotometric analysis and chromatography, to ensure consistent purity, color strength, and shade. A Certificate of Analysis (COA) detailing specific batch results is provided to guarantee compliance with your technical requirements.

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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Blue to dark blue powder
Identification (IR)	Conforms to standard
Assay (Color Strength)	≥ 95%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Matches standard
Fastness Properties	Contact for details

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