Description

Sodium 6-Amino-5-[[3-[(Ethylphenylamino)Sulphonyl]Phenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its role in synthesizing specialized dyes and pigments with excellent color fastness and application properties. It is primarily sought by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of reactive dyes for cotton and other cellulosic fibers.
• Textile Dye Manufacturing: Used in the production of azo-based dyes for wool, silk, and nylon, offering a range of shades from yellows to reds.
• Inkjet and Printing Ink Formulation: Serves as a precursor for pigments used in high-quality inks, providing vibrant color and stability.
• Specialty Pigment Synthesis: Employed in creating complex organic pigments for plastics, coatings, and automotive finishes.
• Laboratory and R&D Use: Utilized as a standard or research chemical for developing new chromophores and studying dye chemistry.
• Paper Coloring Agent: Acts as an intermediate for dyes used in the paper industry.

Basic Information

Item	Detail
Product Name	Sodium 6-Amino-5-[[3-[(Ethylphenylamino)Sulphonyl]Phenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonate
CAS No.	79817-75-7
Molecular Formula	C24H20N5NaO7S2
Molecular Weight	593.56 g/mol
Synonyms	6-Amino-5-[[3-[(ethylphenylamino)sulfonyl]phenyl]azo]-4-hydroxy-2-naphthalenesulfonic acid sodium salt; C.I. Reactive Orange 78 intermediate; Azo dye intermediate 79817-75-7; Sodium 6-amino-4-hydroxy-5-[(3-{[(ethyl)(phenyl)amino]sulfonyl}phenyl)azo]naphthalene-2-sulfonate; 5-[[3-[(Ethylphenylamino)sulfonyl]phenyl]azo]-6-amino-4-hydroxy-2-naphthalenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our production of Sodium 6-Amino-5-[[3-[(Ethylphenylamino)Sulphonyl]Phenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonate adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

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. The product is light-sensitive and should be stored away from light to maintain stability.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Solubility (in Water)	Freely soluble
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.