Description

Trisodium [4'-(8-acetylamino-3,6-disulfonato-2-naphthylazo)-4''-(6-benzoylamino-3-sulfonato-2-naphthylazo)-biphenyl-1,3',3'',1'''-tetraolato-O,O',O'',O''']copper(II) is a high-performance, water-soluble metal complex dye characterized by its intricate polyazo and sulfonated naphthalene structure. This compound matters for its exceptional color strength and stability, making it a critical component for demanding technical applications where standard dyes fail. It is primarily needed by manufacturers in the textile, specialty inks, and advanced material coating industries seeking superior, durable coloration.

Application

• High-Performance Textile Dyeing: For dyeing natural and synthetic fibers, particularly where excellent wash and light fastness are required.
• Specialty Ink Formulation: Used in the production of inks for security printing, digital textile printing, and other high-value applications.
• Functional Material Coatings: Imparts color in coatings for plastics, papers, and other substrates where chemical resistance is key.
• Analytical Chemistry Reagent: May serve as a complexometric indicator or a colored standard in specific analytical procedures.
• Research & Development: Utilized in academic and industrial R&D for developing new colored materials, sensors, or photonic devices.

Basic Information

Item	Detail
Product Name	Trisodium [4'-(8-acetylamino-3,6-disulfonato-2-naphthylazo)-4''-(6-benzoylamino-3-sulfonato-2-naphthylazo)-biphenyl-1,3',3'',1'''-tetraolato-O,O',O'',O''']copper(II)
CAS No.	164058-22-4
Molecular Formula	C52H32CuN6Na3O19S4
Molecular Weight	~1290.5 g/mol (Contact for details)
Synonyms	Copper complex of a dis-azo dye; C.I. Reactive Brown 18 (related class); Trisodium Copper(II) Complex Dye; Polyazo Copper Complex; Sulfonated Naphthylazo Dye Copper Salt; Water-soluble Copper Phthalocyanine Analog (structural); Tetradentate O,O',O'',O'''-ligand Copper Complex
EINECS	Contact for details

Quality Control

Our production of this specialty dye adheres to strict quality management protocols to ensure batch-to-batch consistency and performance reliability. Every lot is analyzed for critical parameters including color strength, purity, and solubility profile. A comprehensive Certificate of Analysis (COA) detailing these 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 sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Solubility in Water	Completely soluble
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.