Description

5-[[4'-[[8-Amino-7-[(2,4-Disulphophenyl)Azo]-1-Hydroxy-5-Sulpho-2-Naphthyl]Azo]-3,3'-Dimethyl[1,1'-Biphenyl]-4-Yl]Azo]Salicylic Acid, Sodium Salt is a high-purity, polyazo dye intermediate of significant industrial importance. Its complex molecular structure, featuring multiple azo linkages and sulphonic acid groups, provides excellent chromophoric properties and water solubility. This compound is essential for manufacturers requiring precise colorant synthesis and advanced material development. It serves as a critical building block in the production of specialized dyes and pigments for textiles, inks, and high-performance coatings.

Application

• Primary Intermediate for Azo Dyes: A key precursor in the synthesis of high-value, complex azo dyes for textile coloring, particularly for cotton and other cellulose fibers.
• Specialty Pigment Manufacturing: Used in the production of pigments for industrial inks, including those for packaging and security printing applications.
• Functional Dye Synthesis: Serves as a starting material for creating dyes with specific properties for technical applications, such as laser marking or optical data storage.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying structure-property relationships in dye chemistry.
• Analytical Reagent: Can be utilized as a standard or reagent in analytical chemistry for method development and calibration.

Basic Information

Product Name	5-[[4'-[[8-Amino-7-[(2,4-Disulphophenyl)Azo]-1-Hydroxy-5-Sulpho-2-Naphthyl]Azo]-3,3'-Dimethyl[1,1'-Biphenyl]-4-Yl]Azo]Salicylic Acid, Sodium Salt
CAS No.	85283-69-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Sodium 5-[[4'-[[8-amino-7-[(2,4-disulfophenyl)azo]-1-hydroxy-5-sulfo-2-naphthyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate; C.I. Direct Brown 1:1; Direct Brown 1:1; Polyazo dye intermediate 85283-69-8; 5-[(4'-{[8-Amino-7-[(2,4-disulfophenyl)azo]-1-hydroxy-5-sulfo-2-naphthyl]azo}-3,3'-dimethyl[1,1'-biphenyl]-4-yl)azo]salicylic acid sodium salt; Azo dye intermediate CAS 85283-69-8
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and 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 identity, purity, and impurity profiles is provided with every shipment to support your quality assurance processes.

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 nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Custom grades available)
Water Content	≤ 5.0%
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.