Description

Disodium 6-Amino-5-[[4-(Benzoylamino)-3-Sulphonatophenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its precise chemical structure makes it a critical precursor for synthesizing specific, high-value dyes and pigments. This compound is essential for manufacturers in the colorant industry seeking consistent quality and reliable supply for their production processes.

Application

This specialized azo intermediate is primarily utilized in the synthesis of high-performance colorants. Key application areas include:

• Primary Intermediate for Reactive Dyes: Used in the manufacture of reactive dyes for textile coloring, particularly for cotton and other cellulosic fibers.
• Precursor for Acid Dyes: Serves as a key building block in the production of acid dyes used for wool, silk, and nylon.
• Specialty Pigment Synthesis: Employed in creating complex organic pigments for inks, coatings, and plastics where specific color fastness and stability are required.
• Research & Development: Used in chemical R&D labs for developing novel dye structures and studying azo coupling reactions.
• Fine Chemical Production: Acts as a starting material for other fine chemicals and functional molecules in advanced material science.

Basic Information

Product Name	Disodium 6-Amino-5-[[4-(Benzoylamino)-3-Sulphonatophenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonate
CAS No.	67875-08-5
Molecular Formula	C23H16N4Na2O9S2
Molecular Weight	610.50 g/mol
Synonyms	6-Amino-5-[[4-(benzoylamino)-3-sulfophenyl]azo]-4-hydroxy-2-naphthalenesulfonic acid disodium salt; C.I. Reactive Orange 78 intermediate; Benzenesulfonic acid, 4-[[6-amino-4-hydroxy-3-[(4-sulfophenyl)azo]-2-naphthalenyl]azo]-N-benzoyl-, disodium salt; Azo dye intermediate 67875-08-5; Disodium 6-amino-4-hydroxy-5-[(4-(benzoylamino)-3-sulfonatophenyl)azo]naphthalene-2-sulfonate
EINECS	Contact for details

Quality Control

Our production of Disodium 6-Amino-5-[[4-(Benzoylamino)-3-Sulphonatophenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonate adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, color strength, and chemical identity, meeting the exacting standards required for dye intermediate applications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment.

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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Sulfated Ash	≤ 20.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm

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