Description

Tetrasodium 3,3'-[(3,3'-Diethoxy[1,1'-Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis[5-(Benzoylamino)-4-Hydroxynaphthalene-2,7-Disulphonate] is a high-purity, synthetic azo dye intermediate characterized by its complex polycyclic structure and multiple sulfonate groups, which confer excellent water solubility. This compound matters as a critical precursor for manufacturing specialized, high-value dyes and pigments, particularly those requiring specific color fastness, light stability, and compatibility with various substrates. It is essential for industrial chemists and manufacturers in the textile, ink, and specialty coatings sectors who require consistent, high-quality intermediates for advanced colorant production.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance, water-soluble azo dyes for textiles and fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for industrial inks, including those for packaging and security printing.
• Functional Dye Synthesis: A precursor for dyes used in non-textile applications such as laser dyes, optical data storage media, and sensitizers.
• Research & Development: Employed in chemical R&D laboratories for developing novel chromophores with specific photophysical properties.
• Analytical Chemistry: Can be utilized as a standard or reagent in chromatographic analysis and method development for dye-related compounds.

Basic Information

Product Name	Tetrasodium 3,3'-[(3,3'-Diethoxy[1,1'-Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis[5-(Benzoylamino)-4-Hydroxynaphthalene-2,7-Disulphonate]
CAS No.	94200-17-6
Molecular Formula	C58H42N6Na4O18S4
Molecular Weight	Approx. 1293.2 g/mol
Synonyms	Tetrasodium 3,3'-[(3,3'-diethoxy-4,4'-biphenylylene)bis(azo)]bis[5-(benzoylamino)-4-hydroxy-2,7-naphthalenedisulfonate]; C.I. Direct Blue 90, Tetrasodium Salt; Direct Blue 90 (Tetrasodium Salt); [1,1'-Biphenyl]-4,4'-diamine, 3,3'-diethoxy-, tetrazotized, coupled with 5-(benzoylamino)-4-hydroxy-2,7-naphthalenedisulfonic acid, tetrasodium salt; Azo Dye Intermediate 94200-17-6; Tetrasodium 5,5'-[(3,3'-Diethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-hydroxy-6-(phenylcarbonylamino)-2,7-naphthalenedisulfonate]
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high chemical purity. Quality is verified through a comprehensive suite of analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

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 heat sources and incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Dark blue to violet powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	Min. 95%
Water Content	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.