Description

Trisodium 5-[[4-[[[4-[[8-Amino-1-Hydroxy-7-[(4-Nitrophenyl)Azo]-3,6-Disulphonato-2-Naphtyl]Azo]Phenyl]Amino]Carbonyl]Phenyl]Azo]Salicylate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its complex molecular structure, featuring multiple azo linkages and sulfonate groups, makes 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 with specific technical properties.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-quality reactive dyes for cotton, wool, and nylon fibers, offering excellent wash and light fastness.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for industrial inks, automotive paints, and plastics coloration.
• Functional Dye Synthesis: Serves as a precursor for dyes used in non-textile applications, including paper coloring and leather finishing.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying azo dye chemistry and properties.

Basic Information

Product Name	Trisodium 5-[[4-[[[4-[[8-Amino-1-Hydroxy-7-[(4-Nitrophenyl)Azo]-3,6-Disulphonato-2-Naphtyl]Azo]Phenyl]Amino]Carbonyl]Phenyl]Azo]Salicylate
CAS No.	72829-14-2
Molecular Formula	C41H24N8Na3O15S2
Molecular Weight	~1002.82 g/mol
Synonyms	5-[[4-[[[4-[[8-Amino-1-hydroxy-7-[(4-nitrophenyl)azo]-3,6-disulfo-2-naphthyl]azo]phenyl]amino]carbonyl]phenyl]azo]salicylic acid trisodium salt; Trisodium 8-amino-1-hydroxy-7-[(4-nitrophenyl)azo]-3,6-disulfo-2-naphthalenyl azo derivative; Azo dye intermediate 72829-14-2; CI 27290 (related); Reactive dye precursor; Tetrasodium salt variant may exist.
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 for sensitive synthesis processes. Quality is verified through a comprehensive suite of analytical techniques including HPLC, UV-Vis spectroscopy, and titration methods. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect purity and handling properties.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content (KF)	Max. 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	Max. 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.