Description

Sodium 7-[(3-Aminobenzoyl)Amino]-3-[(2,4-Dimethylphenyl)Azo]-4-Hydroxynaphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its precise molecular structure enables the synthesis of specialized dyes and pigments with excellent color properties and stability. This compound is essential for manufacturers in the textile, ink, and specialty chemical sectors seeking to produce high-performance colorants for demanding applications.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of acid, direct, and reactive dyes for textile fibers like wool, silk, and nylon.
• Specialty Ink Formulations: Used in the production of high-quality pigments for inks in packaging, security printing, and digital applications.
• Functional Colorants: Employed in the development of dyes for leather, paper, and other specialty materials requiring specific fastness properties.
• Research & Development: A valuable chemical for R&D laboratories exploring novel chromophores and dye structures with enhanced performance characteristics.
• Analytical Chemistry: Can be utilized as a standard or reagent in colorimetric analysis and other laboratory procedures.

Basic Information

Product Name	Sodium 7-[(3-Aminobenzoyl)Amino]-3-[(2,4-Dimethylphenyl)Azo]-4-Hydroxynaphthalene-2-Sulphonate
CAS No.	6369-36-4
Molecular Formula	C25H20N4NaO5S
Molecular Weight	503.51 g/mol
Synonyms	7-[(3-Aminobenzoyl)amino]-3-[(2,4-dimethylphenyl)azo]-4-hydroxy-2-naphthalenesulfonic acid sodium salt; C.I. 18050; Acid Orange 116; Sodium 4-hydroxy-3-[(2,4-dimethylphenyl)azo]-7-[(3-aminobenzoyl)amino]-2-naphthalenesulfonate; 2-Naphthalenesulfonic acid, 7-[(3-aminobenzoyl)amino]-3-[(2,4-dimethylphenyl)azo]-4-hydroxy-, monosodium salt; Azo dye intermediate 6369-36-4
EINECS	Contact for details

Quality Control

Our Sodium 7-[(3-Aminobenzoyl)Amino]-3-[(2,4-Dimethylphenyl)Azo]-4-Hydroxynaphthalene-2-Sulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and consistent high-quality standards. A comprehensive Certificate of Analysis (COA) detailing all test results 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). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

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)	Complete, 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.