Description

C.I.Direct Blue 207 is a high-performance, water-soluble direct dye belonging to the azo chemical class. It is valued for its excellent substantivity to cellulosic fibers, providing deep, vibrant blue shades with good wash and light fastness properties. This dye is essential for manufacturers in the textile and paper industries seeking reliable and efficient coloring solutions for bulk production.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fibers in exhaust and continuous dyeing processes.
• Paper Coloring: Used for the mass coloration of paper pulp to produce uniformly colored paper products.
• Leather Finishing: Employed in the dyeing of leather goods to achieve consistent blue hues.
• Ink Formulation: A colorant component in the manufacture of certain types of inks.
• Biological Staining: Potential use as a histological stain in laboratory settings.

Basic Information

Product Name	C.I. Direct Blue 207
CAS No.	12222-05-8
Molecular Formula	C32H20CuN8O14S4·2Na
Molecular Weight	Contact for details
Synonyms	Direct Blue 207; C.I. 51315; Direct Blue 2B; Amanil Sky Blue 2B; Atul Direct Sky Blue 2B; Dinamine Sky Blue 2B; Sirius Supra Blue 2B; Solar Sky Blue 2B
EINECS	Contact for details

Quality Control

Our C.I. Direct Blue 207 is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise specifications for shade, strength, solubility, and fastness properties. A comprehensive Certificate of Analysis (COA) detailing purity, physical parameters, and performance characteristics is available for every shipment to guarantee batch-to-batch consistency and 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. The product is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Blue to Bluish-Grey Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to Standard
Solubility in Water	Conforms
Fastness Properties (Typical)	Light: 5-6; Wash: 3-4

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