Description

3,3'-[1,2-Ethenediylbis[(3-Sulfo-4,1-Phenylene)-Onn-Azoxy(2-Methyl-4,1-Phenylene)Azo]]Bis(1,5-Naphthalenedisulfonic Acid)Hexasodium Salt is a high-purity, water-soluble anionic dye intermediate belonging to the class of polyazo compounds. This compound is valued for its excellent chromophore properties and thermal stability, making it a critical precursor for synthesizing specialized dyes and pigments. It is primarily sought after by manufacturers in the textile, ink, and specialty coatings industries for producing vibrant, durable colors.

Application

• Textile Dyeing: As a key intermediate for manufacturing reactive, acid, and direct dyes for cotton, wool, and nylon fibers.
• Ink Formulation: Used in the synthesis of pigments for high-performance printing inks, including inks for packaging and textiles.
• Industrial Coatings: Serves as a colorant precursor in coatings for plastics, leather, and paper products.
• Biological Staining: Potential use as an intermediate for developing histological stains and indicators in laboratory settings.
• Optical Applications: Research into its use for liquid crystal displays (LCDs) and other optoelectronic devices due to its structured chromophore.
• Analytical Chemistry: Can be utilized as a complexometric agent or indicator in certain titration methods.

Basic Information

Product Name	3,3'-[1,2-Ethenediylbis[(3-Sulfo-4,1-Phenylene)-Onn-Azoxy(2-Methyl-4,1-Phenylene)Azo]]Bis(1,5-Naphthalenedisulfonic Acid)Hexasodium Salt
CAS No.	72854-12-7
Molecular Formula	C52H32N6Na6O26S8
Molecular Weight	~1550.2 g/mol (Contact for exact details)
Synonyms	Hexasodium 3,3'-[1,2-ethenediylbis[(3-sulfo-4,1-phenylene)azoxy(2-methyl-4,1-phenylene)azo]]bis(1,5-naphthalenedisulfonate); C.I. Direct Yellow 106; Direct Yellow 106; Polyazo dye intermediate; Acid Black 210 intermediate; Tetrasulfonated bis-azo dye; Reactive Orange 16 related intermediate; Azo dye precursor 72854-12-7
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems. Every batch undergoes comprehensive analytical testing to ensure consistency and meets the high standards required for industrial synthesis. Certificates of Analysis (COA) documenting purity, identity, and impurity profiles are provided with each shipment and are available upon request.

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark brown to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content (KF)	Max. 5.0%
Water Solubility	Completely soluble
Heavy Metals (as Pb)	Max. 20 ppm
Sulfated Ash	25 - 35%
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.