Description

Cuprate(6-), [mu-[4-[[8-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-4'-[(1-hydroxy-3,6,8-trisulfo-2-naphthalenyl)azo][1,1'-biphenyl]-3,3'-dicarboxylato(10-)]]di-, hexasodium is a high-performance, water-soluble copper complex dye. This compound is engineered for exceptional color strength and stability, making it a critical component for demanding industrial coloration processes. It is primarily utilized in sectors requiring durable and vibrant dyes, such as textile manufacturing, specialty inks, and advanced material coatings.

Application

• Textile Dyeing and Printing: For coloring natural and synthetic fibers, offering excellent wash and light fastness.
• Specialty Ink Formulation: Used in high-performance inks for security printing, packaging, and digital applications.
• Leather Finishing: Provides rich, durable coloration for finished leather goods.
• Paper Coloration: For high-grade decorative and specialty papers requiring consistent hue.
• Advanced Material Coatings: Imparts color and functional properties to coatings for plastics and composites.
• Biological Staining (Research Grade): Potential use as a specialized stain in histological or analytical research applications.

Basic Information

Product Name	Cuprate(6-), [mu-[4-[[8-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-4'-[(1-hydroxy-3,6,8-trisulfo-2-naphthalenyl)azo][1,1'-biphenyl]-3,3'-dicarboxylato(10-)]]di-, hexasodium
CAS No.	73507-27-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Hexasodium Cuprate Complex Dye; C.I. Direct Blue 218 (likely associated); Copper complex of a disazo direct dye; Direct Blue 218, Copper complex; [1,1'-Biphenyl]-3,3'-dicarboxylic acid, 4,4'-bis[[7-[[4-chloro-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulfo-2-naphthalenyl]azo]-, copper complex, hexasodium salt; Reactive Blue 218 (related class); Azo copper complex dye; Textile Blue 218Cu
EINECS	Contact for details

Quality Control

Our production of this copper complex dye adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Every lot is tested for critical parameters including color strength, solubility, and metal content. A comprehensive Certificate of Analysis (COA) detailing purity, absorbance, and physical specifications is provided with each shipment to support your quality assurance processes.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (Color Value)	Min. 95%
Solubility (in Water)	Clear solution
Moisture Content	Max. 5.0%
Ash Content (Sulfated)	Contact for details
Heavy Metals (as Pb)	Max. 20 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.