Description

Direct Green 26 is a synthetic, anionic dye belonging to the direct dye class, widely recognized for its strong affinity to cellulosic fibers. Its primary value lies in providing a deep, substantive green coloration with good wash-fastness properties in textile applications. This product is essential for manufacturers in the textile dyeing and paper coloring industries, where consistent color strength and batch-to-batch uniformity are critical for quality assurance.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fibers, offering good exhaustion and leveling properties.
• Paper Coloring: Used in the production of colored papers, tissues, and paperboard where a stable green hue is required.
• Leather Finishing: Employed in the dyeing of leather goods to achieve uniform and vibrant green shades.
• Ink Formulation: Serves as a colorant in the manufacture of certain types of inks for specialty printing applications.
• Biological Staining: May be utilized in histological and microbiological laboratories as a staining agent for microscopic analysis.
• Educational & Research: Used in academic and industrial research settings for dye chemistry studies and process development.

Basic Information

Product Name	Direct Green 26
CAS No.	6388-26-7
Molecular Formula	C34H28N6Na4O16S4
Molecular Weight	1073.0 g/mol
Synonyms	Direct Green B; Direct Green GS; C.I. 34045; Direct Green 26 (C.I. 34045); Direct Dark Green B; Direct Green 26GS; Pontamine Green B; Amanil Green B; Chlorazol Green B; Benzo Green B; Diazol Green B
EINECS	229-003-6

Quality Control

Our Direct Green 26 is manufactured under a stringent quality management system to ensure high purity and consistent performance. Every batch is tested against established specifications for key parameters including color strength, shade, solubility, and impurity profile. A comprehensive Certificate of Analysis (COA) detailing the results is provided with each 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 strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	Dark green to black powder or granules
Identification (IR)	Conforms to standard
Assay (Color Strength)	≥ 95% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Within agreed tolerance
Solubility in Water	Conforms

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