Description

Trisodium 2-[[2-Amino-6-[[4'-[(3-Carboxylato-4-Hydroxyphenyl)Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]-5-Hydroxy-7-Sulphonato-1-Naphthyl]Azo]-5-Nitrobenzoate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex polyazo structure provides excellent chromophoric properties, making it a critical precursor for synthesizing high-performance dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant, colorfast products.

Application

• Primary Intermediate for Polyazo Dyes: Serves as a key building block in the synthesis of high-grade, complex azo dyes for textiles and fibers.
• Specialty Pigment Manufacturing: Used in the production of high-performance organic pigments for automotive paints, industrial coatings, and plastics.
• Inkjet and Printing Inks: Provides the chromophore structure for advanced colorants in digital printing and high-resolution inks.
• Research & Development: Employed in chemical R&D for developing novel colorants with specific lightfastness and solubility properties.
• Functional Dye Synthesis: Potential use as a precursor for dyes with specialized applications, such as in optical data storage or liquid crystal displays.

Basic Information

Product Name	Trisodium 2-[[2-Amino-6-[[4'-[(3-Carboxylato-4-Hydroxyphenyl)Azo]-3,3'-Dimethoxy[1,1'-Biphenyl]-4-Yl]Azo]-5-Hydroxy-7-Sulphonato-1-Naphthyl]Azo]-5-Nitrobenzoate
CAS No.	6739-62-4
Molecular Formula	C44H28N7Na3O15S
Molecular Weight	~1003.8 g/mol
Synonyms	Benzoic acid, 2-[[2-amino-6-[[4'-[(3-carboxy-4-hydroxyphenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-7-sulfo-1-naphthalenyl]azo]-5-nitro-, trisodium salt; C.I. 27290; Trisodium 2-[(2-Amino-5-hydroxy-7-sulfo-6-[(4'-[4-hydroxy-3-carboxyphenyl)azo]-3,3'-dimethoxy-4-biphenylyl]azo]-1-naphthyl]azo]-5-nitrobenzoate; Polyazo dye intermediate 6739-62-4; Azo dye precursor (tetrakis-azo).
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to rigorous quality control protocols to ensure batch-to-batch consistency and purity for sensitive synthesis processes. Quality is verified through modern analytical techniques including HPLC, UV-Vis spectroscopy, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profile is provided with every shipment to support your quality assurance systems.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect purity and handling properties.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
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.