Description

Direct Violet 66 is a synthetic, water-soluble dye belonging to the direct dye class, widely recognized for its strong affinity to cellulosic fibers. Its primary value lies in providing a deep, vibrant violet shade with excellent build-up and good wash fastness properties on cotton, viscose, and other natural substrates. This product is essential for manufacturers in the textile dyeing and paper coloring industries seeking consistent, high-strength colorants for bulk production.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fibers to achieve a deep violet hue.
• Paper Coloring: Used in the mass coloration of paper products, including packaging materials, tissues, and specialty papers.
• Leather Finishing: Employed in the dyeing of leather goods to provide rich, uniform color.
• Ink Formulation: A colorant component in the manufacture of certain types of inks, including stamp pad and flexographic inks.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.
• Wood Staining: Applied for coloring wood and wood-based products.

Basic Information

Product Name	Direct Violet 66
CAS No.	6798-03-4
Molecular Formula	C34H23N7Na2O9S2
Molecular Weight	783.70 g/mol
Synonyms	Direct Violet 66; C.I. 29120; Direct Violet BN; Direct Violet 5BN; Direct Violet R; Direct Violet 2R; Atul Direct Violet R; Amanil Violet 2B
EINECS	229-891-5

Quality Control

Our Direct Violet 66 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including color strength, shade, solubility, and impurity profile to meet industry specifications. A Certificate of Analysis (COA) detailing the results for purity, heavy metals, and other relevant tests 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 sources of heat. Under these conditions, the product remains stable for an extended period.

Specification

Item	Specification
Appearance	Dark Violet to Black Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Ash Content	≤ 1.0%
Heavy Metals (as Pb)	≤ 50 ppm
pH (1% Solution)	6.0 - 8.0

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