Description

6-Amino-5-[(4-Aminophenyl)Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid is a high-purity azo dye intermediate characterized by its distinct chemical structure containing amino, hydroxyl, and sulphonic acid groups. This compound is essential for synthesizing specialized dyes and pigments, offering precise color properties and stability for demanding applications. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries seeking reliable intermediates for high-performance colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of acid dyes and direct dyes for textiles like wool, silk, and nylon.
• Specialty Pigment Manufacturing: Used in the production of high-performance pigments for inks, coatings, and plastics requiring specific color fastness and stability.
• Research & Development: Employed in chemical research for developing novel chromophores and functional dyes with tailored properties.
• Analytical Reagent: Can be utilized as a chemical reagent or standard in analytical chemistry and quality control laboratories.

Basic Information

Product Name	6-Amino-5-[(4-Aminophenyl)Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid
CAS No.	59836-94-1
Molecular Formula	C16H15N5O4S
Molecular Weight	373.39 g/mol
Synonyms	6-Amino-5-[(4-aminophenyl)azo]-4-hydroxy-2-naphthalenesulfonic acid; 4-Hydroxy-6-amino-5-[(4-aminophenyl)azo]-2-naphthalenesulfonic acid; C.I. 37120; Azo dye intermediate 59836-94-1; 5-[(4-Aminophenyl)azo]-6-amino-4-hydroxy-2-naphthalenesulfonic acid; 2-Naphthalenesulfonic acid, 6-amino-5-[(4-aminophenyl)azo]-4-hydroxy-
EINECS	Contact for details

Quality Control

Our 6-Amino-5-[(4-Aminophenyl)Azo]-4-Hydroxynaphthalene-2-Sulphonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee consistency and traceability for your production processes.

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). Keep away from strong oxidizing agents and incompatible materials. Due to its complex aromatic structure, prolonged exposure to elevated temperatures or humidity should be avoided.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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