Description

Sodium 6-Amino-4-Hydroxy-5-[[2-(Phenylsulphonyl)Phenyl]Azo]Naphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate essential for producing vibrant and stable colorants. Its value lies in its specific chemical structure, which imparts excellent light and wash fastness properties to the final dyes. This compound is primarily needed by manufacturers in the textile, leather, and specialty ink industries seeking to develop high-performance, colored products.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of acid and direct dyes for textiles like wool, silk, and nylon.
• Leather Dyeing: Used in the formulation of dyes for coloring leather goods, providing deep, uniform shades.
• Specialty Inks: Employed in the production of inks for applications requiring specific color properties and stability.
• Paper Coloring: Can be utilized in the manufacture of colored papers and paper products.
• Research & Development: Acts as a standard or precursor in chemical research for developing new chromophores and functional materials.

Basic Information

Product Name	Sodium 6-Amino-4-Hydroxy-5-[[2-(Phenylsulphonyl)Phenyl]Azo]Naphthalene-2-Sulphonate
CAS No.	6245-60-9
Molecular Formula	C22H15N3O6S2Na
Molecular Weight	504.48 g/mol
Synonyms	6-Amino-4-hydroxy-5-((2-(phenylsulfonyl)phenyl)azo)-2-naphthalenesulfonic acid sodium salt; C.I. 18050; Acid Orange 33; Sodium 6-amino-4-hydroxy-5-((2-(phenylsulfonyl)phenyl)azo)-2-naphthalenesulfonate; 5-((2-(Phenylsulfonyl)phenyl)azo)-6-amino-4-hydroxy-2-naphthalenesulfonic acid sodium salt; 2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-5-((2-(phenylsulfonyl)phenyl)azo)-, sodium salt (1:1)
EINECS	228-380-6

Quality Control

Our Sodium 6-Amino-4-Hydroxy-5-[[2-(Phenylsulphonyl)Phenyl]Azo]Naphthalene-2-Sulphonate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided to guarantee consistency and support your quality assurance protocols.

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); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 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.