Description

2-[[4-[[4-[[6-Anilino-1-Hydroxy-3-Sulpho-2-Naphthyl]Azo]-1-Naphthyl]Azo]-6-Sulpho-1-Naphthyl]Azo]Benzene-1,4-Disulphonic Acid, Ammonium Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its complex polyazo structure with multiple sulfonic acid groups makes it a critical precursor for synthesizing high-value, colorfast dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant and stable colors.

Application

• Primary Intermediate for Reactive Dyes: Key building block in the synthesis of high-performance reactive dyes for cotton, wool, and nylon fibers.
• Direct Dye Production: Used in manufacturing direct dyes for paper coloring and textile applications requiring good wet fastness.
• Acid Dye Synthesis: Serves as a precursor for acid dyes used on silk, leather, and polyamide materials.
• Pigment Manufacturing: Employed in the production of lake pigments and organic pigments for inks and plastics.
• Research & Development: A valuable compound for R&D laboratories developing new chromophores and studying azo dye chemistry.
• Specialty Chemical Synthesis: Used in the synthesis of complex organic molecules for analytical reagents and light-absorbing materials.

Basic Information

Item	Detail
Product Name	2-[[4-[[4-[[6-Anilino-1-Hydroxy-3-Sulpho-2-Naphthyl]Azo]-1-Naphthyl]Azo]-6-Sulpho-1-Naphthyl]Azo]Benzene-1,4-Disulphonic Acid, Ammonium Sodium Salt
CAS No.	75150-14-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Reactive Red 241 (related dye class); Polyazo dye intermediate; Ammonium sodium salt of a tetrakisazo dye acid; 1,5-Naphthalenedisulfonic acid, 3-[[4-[[4-[[6-(phenylamino)-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-6-sulfo-1-naphthalenyl]azo]-, ammonium sodium salt; Azo dye precursor for red/violet shades; Tetrakisazo benzene derivative; Sulfonated azo dye intermediate; Water-soluble dye intermediate.
EINECS	Contact for details

Quality Control

Our 2-[[4-[[4-[[6-Anilino-1-Hydroxy-3-Sulpho-2-Naphthyl]Azo]-1-Naphthyl]Azo]-6-Sulpho-1-Naphthyl]Azo]Benzene-1,4-Disulphonic Acid, Ammonium Sodium Salt is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and chemical composition. Certificates of Analysis (COA) detailing key parameters such as assay, impurity profile, and solubility are provided and available upon request to support your quality assurance protocols.

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 use to prevent moisture absorption, which can affect product stability and performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Solubility	Freely soluble
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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