Description

Direct Violet 9 is a synthetic, water-soluble diazo dye belonging to the direct dye class, valued for its strong affinity to cellulosic fibers. Its primary commercial value lies in providing a deep, vibrant violet shade with good wash-fastness properties in textile applications. This product is essential for industrial operations in the textile dyeing and paper coloring sectors, where consistent color strength and batch-to-batch uniformity are critical for quality control.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fibers to achieve violet hues.
• Paper Coloring: Used in the production of colored papers, tissues, and packaging materials.
• Leather Finishing: Imparts color to leather goods in the tanning industry.
• Ink Formulation: A colorant component for certain types of inks and stamp pads.
• Biological Staining: Potential use as a histological stain in laboratory settings.
• Wood Staining: Applied for coloring wood and related products.

Basic Information

Product Name	Direct Violet 9
CAS No.	6227-14-1
Molecular Formula	C34H22N6Na2O8S2
Molecular Weight	760.69 g/mol
Synonyms	Direct Violet 9; C.I. 27885; Benzo Violet; Direct Violet BN; Direct Violet BNL; Direct Violet 2B; C.I. Direct Violet 9; Pontamine Violet BNL; Aizen Direct Violet BH
EINECS	228-312-4

Quality Control

Our Direct Violet 9 is manufactured under a stringent quality management system to ensure consistent purity and performance. Each batch is tested against established specifications for color strength, shade, solubility, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing test results is provided with every shipment 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 incompatible materials and moisture to maintain product integrity.

Specification

Item	Specification
Appearance	Dark violet to brown powder
Identification (IR)	Conforms to standard
Assay (Color Strength)	≥ 95% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Clear solution
pH (1% Solution)	6.0 - 8.0
Ash Content	≤ 1.0%

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