Description

Sodium 7-[(4-Aminobenzoyl)Amino]-4-Hydroxy-3-[(2-Methoxyphenyl)Azo]Naphthalene-2-Sulphonate is a specialized azo dye intermediate of significant commercial importance. Its value lies in its role as a key precursor for synthesizing high-performance dyes and pigments, offering excellent color properties and structural versatility. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to develop vibrant and stable colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a crucial building block in the synthesis of complex, high-value azo dyes for textiles and fabrics.
• Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics, providing enhanced color strength and lightfastness.
• Specialty Chemical Synthesis: Acts as a key reactant in the preparation of other functional chemicals, including liquid crystal dyes and biological stains.
• Research & Development: Employed in laboratory settings for developing new chromophores and studying structure-color relationships.

Basic Information

Item	Detail
Product Name	Sodium 7-[(4-Aminobenzoyl)Amino]-4-Hydroxy-3-[(2-Methoxyphenyl)Azo]Naphthalene-2-Sulphonate
CAS No.	6470-23-1
Molecular Formula	C24H18N4NaO6S
Molecular Weight	513.48 g/mol
Synonyms	Acid Orange 156; C.I. 26410; 7-[(4-Aminobenzoyl)amino]-4-hydroxy-3-[(2-methoxyphenyl)azo]naphthalene-2-sulfonic acid sodium salt; Sodium 4-hydroxy-3-[(2-methoxyphenyl)azo]-7-[(4-aminobenzoyl)amino]-2-naphthalenesulfonate; Azo dye intermediate 6470-23-1; 2-Naphthalenesulfonic acid, 7-[(4-aminobenzoyl)amino]-4-hydroxy-3-[(2-methoxyphenyl)azo]-, sodium salt (1:1)
EINECS	Contact for details

Quality Control

Our production of Sodium 7-[(4-Aminobenzoyl)Amino]-4-Hydroxy-3-[(2-Methoxyphenyl)Azo]Naphthalene-2-Sulphonate adheres to stringent quality management protocols. Every batch undergoes rigorous analytical testing to ensure consistent purity, color value, and chemical identity. Certificates of Analysis (COA) detailing assay, impurity profile, and physical specifications are available upon request to support your quality assurance and regulatory compliance 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). This material is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Orange to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in water, slightly soluble in ethanol

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