Description

Tetrasodium [mu-[[2,2'-[carbonylbis[imino(2-sulpho-p-phenylene)vinylene(3-sulpho-p-phenylene)(4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-1,4-diyl)azo]]bis[benzoato]](8-)]]dicuprate(4-) is a high-purity, complex copper-containing azo dye intermediate. This compound is critical for synthesizing specialized dyes and pigments that require exceptional color fastness and stability. It is primarily needed by manufacturers in the textile, leather, and specialty ink industries for producing high-performance colorants.

Application

• Textile Dyeing: As a key intermediate for producing reactive and direct dyes for cotton, wool, and nylon, offering excellent wash and light fastness.
• Leather Coloring: Used in the synthesis of pigments and dyes for high-quality leather finishing.
• Specialty Inks: A precursor for manufacturing pigments used in inks for packaging, security printing, and digital textiles.
• Functional Dyes: Serves as a building block for dyes used in optical data storage, liquid crystal displays (LCDs), and other advanced materials.
• Research & Development: Utilized in chemical research for developing novel chromophores and metal-complex dyes.

Basic Information

Product Name	Tetrasodium [mu-[[2,2'-[carbonylbis[imino(2-sulpho-p-phenylene)vinylene(3-sulpho-p-phenylene)(4,5-dihydro-3-methyl-5-oxo-1H-pyrazole-1,4-diyl)azo]]bis[benzoato]](8-)]]dicuprate(4-)
CAS No.	70247-71-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Copper complex of a disazo pyrazolone dye; Tetrasodium copper azo complex; Reactive Blue 235 intermediate; C.I. 74459 intermediate; Copper phthalocyanine azo derivative; Tetrasodium dicuprate(4-) complex; 1,3-Benzenedicarboxylic acid, 5-[[4-[[2-[4-[[5-[[[5-[(2-carboxy-5-sulfophenyl)azo]-3-methyl-1-phenyl-1H-pyrazol-4-yl]azo]-2-sulfophenyl]amino]-3-sulfophenyl]-1-ethenyl]amino]-3-sulfophenyl]azo]-3-methyl-1-phenyl-1H-pyrazol-4-yl]azo]-, copper complex
EINECS	Contact for details

Quality Control

Our tetrasodium dicuprate complex is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay by titration and identification by spectroscopic methods, to ensure consistent purity and performance. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to reference spectrum
Assay (Cu complex)	Min. 95% (by titration)
Loss on Drying	Max. 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm

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