Description

Tetrasodium 2,2'-[Carbonylbis[Imino[2-[(Aminocarbonyl)Amino]-4,1-Phenylene]Azo]]Bis[5-[(4-Sulphonatophenyl)Azo]Benzenesulphonate] is a high-purity, water-soluble, polyazo dye intermediate known for its complex molecular structure and functional properties. This compound is critical for manufacturers requiring precise colorant synthesis and consistent batch-to-batch performance in demanding applications. It is primarily utilized by producers in the specialty dyes and pigments, textile chemicals, and advanced material research sectors.

Application

• Primary Intermediate for Reactive and Direct Dyes: Serves as a key building block in the synthesis of high-value, colorfast dyes for cotton, wool, and nylon.
• Textile Colorant Manufacturing: Used in the production of dyes for the textile industry, offering excellent wash and light fastness properties.
• Specialty Pigment Synthesis: A crucial precursor for creating complex organic pigments used in inks, coatings, and plastics.
• Research & Development: Employed in academic and industrial R&D for developing novel chromophores and functional dyes.
• Analytical Chemistry Reagent: Can be used as a standard or reagent in chromatographic analysis and method development for dye-related compounds.
• Functional Material Development: Investigated for potential use in advanced materials, including light-harvesting arrays and sensor technologies.

Basic Information

Product Name	Tetrasodium 2,2'-[Carbonylbis[Imino[2-[(Aminocarbonyl)Amino]-4,1-Phenylene]Azo]]Bis[5-[(4-Sulphonatophenyl)Azo]Benzenesulphonate]
CAS No.	72829-40-4
Molecular Formula	C46H28N14Na4O16S4
Molecular Weight	~1293.0 g/mol
Synonyms	Direct Blue 199 (Tetrasodium Salt); C.I. Direct Blue 199; Tetrasodium 6,6'-((Carbonyldiimino)bis(2-((carbamoylamino)-5-((4-sulfonatophenyl)azo)benzenesulfonate)); Direct Blue 199; C.I. 74190; Tetrasodium 6,6'-[carbonylbis[imino(2-(carbamoylamino)-5-[(4-sulfonatophenyl)azo]benzenesulfonato)]]; Benzenesulfonic acid, 6,6'-[carbonylbis[imino(2-(carbamoylamino)-5-[(4-sulfonatophenyl)azo]-1,3-phenylene]]]tetrasodium salt
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure chemical identity, purity, and consistency meet the exacting standards of industrial synthesis. Every batch is supported by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, impurity profile, and physical properties. We are committed to supply chain transparency and traceability, providing documentation to support your regulatory and quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture, which can affect performance and stability.

Specification

Item	Specification
Appearance	Dark blue to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Freely soluble

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