Description

Tetrasodium 2,2'-[1,4-Phenylenebis[Carbonylimino[2-Acetamido-4,1-Phenylene]Azo]]Bis[5-[(4-Sulphonatophenyl)Azo]Benzenesulphonate] is a high-purity, water-soluble anionic azo dye intermediate. This compound is engineered for exceptional color strength and stability, making it a critical component in the synthesis of high-performance dyes and pigments. It is primarily sought after by manufacturers in the textile, ink, and specialty coatings industries who require reliable and consistent chromophores for their formulations.

Application

• Textile Dyeing: As a key intermediate for producing reactive and direct dyes for cotton, wool, and nylon fibers.
• Ink Manufacturing: Used in the synthesis of pigments for industrial inks, including packaging and textile printing inks.
• Specialty Coatings: Serves as a colorant precursor in coatings for paper, leather, and plastics.
• Biological Staining: Potential use as an intermediate for histological stains and indicators in laboratory settings.
• Functional Dyes: A building block for dyes used in optical data storage, liquid crystal displays (LCDs), and laser applications.
• Research & Development: Employed in chemical research for developing novel chromophores and studying azo dye chemistry.

Basic Information

Product Name	Tetrasodium 2,2'-[1,4-Phenylenebis[Carbonylimino[2-Acetamido-4,1-Phenylene]Azo]]Bis[5-[(4-Sulphonatophenyl)Azo]Benzenesulphonate]
CAS No.	70210-30-9
Molecular Formula	C58H38N12Na4O20S4
Molecular Weight	Approx. 1415.2 g/mol
Synonyms	Reactive Black 5 Intermediate; Tetrasodium 4,4'-[1,4-Phenylenebis[imino(6-acetamido-3,1-phenylene)azo]]bis[5-hydroxy-6-(4-sulfophenyl)azo]naphthalene-2,7-disulfonate; C.I. Reactive Black 5 Tetrasodium Salt; Direct Black 22 Intermediate; Azo Dye Intermediate 70210-30-9; 1,4-Bis[[4-[(2-acetamido-4-[(4-sulfophenyl)azo]phenyl)azo]-6-sulfo-1-naphthyl]azo]benzene tetrasodium salt
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to strict quality management systems. Every batch is analyzed using advanced techniques like HPLC and spectrophotometry to ensure consistent purity, color value, and chemical identity. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment to guarantee it meets your precise formulation requirements.

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 after opening to prevent moisture absorption, which can affect performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at 1%
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	7.0 - 9.0

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