Description

6-Amino-4-Hydroxy-5-[[2-(Phenylsulphonyl)Phenyl]Azo]Naphthalene-2-Sulphonic Acid is a specialized azo dye intermediate characterized by its complex naphthalene sulphonic acid structure. This compound matters for its role as a key precursor in synthesizing high-performance, colorfast dyes and pigments for demanding industrial applications. Manufacturers in the textile, ink, and specialty chemical sectors need this intermediate to produce dyes with enhanced properties such as improved lightfastness and solubility.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile coloring.
• Key component in manufacturing specialty inks, including those for packaging and security printing applications.
• Used in the production of colorants for plastics and polymers to achieve specific hue and stability requirements.
• Potential precursor for research chemicals and analytical reagents in laboratory settings.
• Employed in the development of functional dyes for non-textile applications, such as in optical materials.

Basic Information

Product Name	6-Amino-4-Hydroxy-5-[[2-(Phenylsulphonyl)Phenyl]Azo]Naphthalene-2-Sulphonic Acid
CAS No.	25317-07-1
Molecular Formula	C22H17N3O6S2
Molecular Weight	483.52 g/mol
Synonyms	6-Amino-4-hydroxy-5-[(2-(phenylsulfonyl)phenyl)azo]-2-naphthalenesulfonic acid; 5-[[2-(Phenylsulfonyl)phenyl]azo]-6-amino-4-hydroxy-2-naphthalenesulfonic acid; CI 18050; Acid Orange 86 intermediate; Azo dye intermediate 25317-07-1; 2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-5-[(2-(phenylsulfonyl)phenyl)azo]-; 6-Amino-4-hydroxy-5-[(2-(benzenesulfonyl)phenyl)diazenyl]naphthalene-2-sulfonic acid
EINECS	Contact for details

Quality Control

Our production of 6-Amino-4-Hydroxy-5-[[2-(Phenylsulphonyl)Phenyl]Azo]Naphthalene-2-Sulphonic Acid adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance as a dye intermediate. Certificates of Analysis (COA) detailing specifications such as assay, impurity profile, and physical characteristics are available upon request to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C). Keep away from incompatible materials and sources of ignition. For long-term storage, maintain under an inert atmosphere if possible to preserve product integrity.

Specification

Item	Specification
Appearance	Brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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