Description

Disodium 5-[[4-[[6-[(4-Aminobenzoyl)Amino]-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]Benzoyl]Amino]Salicylate is a high-purity, water-soluble azo dye intermediate of significant commercial importance. This compound is valued for its role in synthesizing specialized dyes and pigments with enhanced color fastness and stability properties. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary Intermediate for Azo Dyes: A key building block in the synthesis of acid dyes and direct dyes for textiles, particularly wool, silk, and nylon.
• Specialty Pigment Manufacturing: Used in the production of high-grade pigments for inks, coatings, and plastics requiring specific hue and durability.
• Research & Development: Serves as a critical reagent in chemical R&D for developing novel chromophores and functional dyes.
• Biological Staining: Potential use as a precursor for histological stains and diagnostic dyes in life sciences.
• Functional Material Synthesis: Employed in creating dyes for optical applications, sensors, and other advanced materials.

Basic Information

Product Name	Disodium 5-[[4-[[6-[(4-Aminobenzoyl)Amino]-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]Benzoyl]Amino]Salicylate
CAS No.	6771-94-4
Molecular Formula	C31H21N5Na2O10S
Molecular Weight	709.57 g/mol
Synonyms	5-[[4-[[6-[(4-Aminobenzoyl)amino]-1-hydroxy-3-sulphonato-2-naphthyl]azo]benzoyl]amino]salicylic acid disodium salt; Disodium 5-[(4-{[6-[(4-aminobenzoyl)amino]-1-hydroxy-3-sulphonato-2-naphthyl]azo}benzoyl)amino]salicylate; C.I. 18050; Acid Dye Intermediate; Azo Dye Intermediate CAS 6771-94-4
EINECS	Contact for details

Quality Control

Our production of Disodium 5-[[4-[[6-[(4-Aminobenzoyl)Amino]-1-Hydroxy-3-Sulphonato-2-Naphthyl]Azo]Benzoyl]Amino]Salicylate adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed against rigorous in-house specifications, which typically include identity confirmation, assay, and impurity profiling. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory needs.

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 incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in darkness.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Solubility (1% in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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