Description

Cuprate(4-), [Mu-[[3,3'-[(3,3'-Dihydroxy[1,1'-Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis[5-Amino-4-Hydroxy-2,7-Naphthalenedisulfonato]](8-)]]Di-, Diethanolamine Sodium Salts is a high-purity, complex copper-based azo dye intermediate. This compound is valued for its role as a critical precursor in the synthesis of specialized dyes and pigments, offering excellent chelating properties and color fastness. It is primarily sought by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Textile Dyeing: As a key intermediate for manufacturing high-grade, metal-complex azo dyes used on cotton, wool, and synthetic fibers.
• Ink Formulation: In the production of specialty printing inks, including those for security printing and high-durability applications.
• Pigment Synthesis: Serves as a precursor for creating complex inorganic color pigments with enhanced stability and weather resistance.
• Analytical Reagents: Used in the formulation of specific colorimetric indicators and reagents for chemical analysis.
• Research & Development: Employed in academic and industrial R&D for studying azo dye chemistry and developing novel colorant materials.

Basic Information

Item	Detail
Product Name	Cuprate(4-), [Mu-[[3,3'-[(3,3'-Dihydroxy[1,1'-Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis[5-Amino-4-Hydroxy-2,7-Naphthalenedisulfonato]](8-)]]Di-, Diethanolamine Sodium Salts
CAS No.	73070-37-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Copper complex of Direct Blue 78; Azo dye copper complex; C.I. Direct Blue 78, copper complex; [μ-[[3,3'-[(3,3'-Dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxy-2,7-naphthalenedisulfonato]](8-)]]dicuprate(4-), diethanolamine sodium salts; Direct Blue 78 Copper Lake; Cuprate(4-), [μ-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxy-2,7-naphthalenedisulfonato]](8-)]]di-, compd. with 2,2'-iminobis[ethanol] sodium salt
EINECS	Contact for details

Quality Control

Our production of Cuprate(4-), [Mu-[[3,3'-[(3,3'-Dihydroxy[1,1'-Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis[5-Amino-4-Hydroxy-2,7-Naphthalenedisulfonato]](8-)]]Di-, Diethanolamine Sodium Salts adheres to a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, composition, and performance for your specific application needs. Certificates of Analysis (COA) documenting key parameters are available upon request.

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 after opening to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 90% (or as per customer grade)
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Partially soluble to form a colored solution

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