Description

3-[[4-[[4-[(6-Amino-1-Hydroxy-3-Sodiosulfo-2-Naphthalenyl)Azo]-1-Naphthalenyl]Azo]-1-Naphthalenyl]Azo]-2-Hydroxy-5-Sodiosulfobenzoic Acid Sodium Salt is a high-purity, multi-azo dye intermediate of significant commercial importance. Its complex molecular structure provides excellent chromophoric properties, making it a critical precursor for synthesizing specialized dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to produce vivid and stable colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-performance, polyazo direct and reactive dyes for textiles, particularly cotton and cellulose fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics requiring specific color fastness and stability.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying azo coupling reactions and dye chemistry.
• Analytical Chemistry: Can be utilized as a staining agent or a complexometric indicator in specific analytical methodologies.

Basic Information

Product Name	3-[[4-[[4-[(6-Amino-1-Hydroxy-3-Sodiosulfo-2-Naphthalenyl)Azo]-1-Naphthalenyl]Azo]-1-Naphthalenyl]Azo]-2-Hydroxy-5-Sodiosulfobenzoic Acid Sodium Salt
CAS No.	6598-61-4
Molecular Formula	C37H23N7Na3O12S3
Molecular Weight	956.84 g/mol
Synonyms	Benzoic acid, 2-hydroxy-5-sulfo-3-[[4-[[4-[(6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-1-naphthalenyl]azo]-1-naphthalenyl]azo]-, sodium salt (1:3); Trisodium 3-[[4-[[4-[(6-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-1-naphthyl]azo]-1-naphthyl]azo]-2-hydroxy-5-sulphobenzoate; C.I. 29160; Polyazo dye intermediate; Tetrakis-azo dye intermediate
EINECS	Contact for details

Quality Control

Our 3-[[4-[[4-[(6-Amino-1-Hydroxy-3-Sodiosulfo-2-Naphthalenyl)Azo]-1-Naphthalenyl]Azo]-1-Naphthalenyl]Azo]-2-Hydroxy-5-Sodiosulfobenzoic Acid Sodium Salt is produced under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity, consistent chromophore strength, and batch-to-batch reproducibility essential for industrial dye synthesis. Comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

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 compound is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect purity and performance.

Specification

Item	Specification
Appearance	Dark brown to black powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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