Description

6-Hydroxy-5-[[2,5-Dimethyl-4-[(2,4-Dimethylphenyl)Azo]Phenyl]Azo]Naphthalene-2-Sulfonic Acid Sodium Salt is a high-purity, water-soluble azo dye intermediate of significant commercial importance. Its value lies in its role as a key precursor for synthesizing a range of vivid and stable organic pigments and dyes. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce high-performance colorants.

Application

• Primary Intermediate for Organic Pigments: Serves as a crucial building block in the synthesis of high-performance azo pigments used in industrial paints and plastics.
• Textile Dye Manufacturing: Used in the production of dyes for coloring natural and synthetic fibers, offering good wash and light fastness.
• Ink Formulation: A key component in the manufacture of pigments for printing inks, including packaging and publication inks.
• Specialty Coatings: Employed in creating colorants for automotive, architectural, and industrial coatings requiring durability.
• Research & Development: Utilized in chemical research for developing novel chromophores and studying azo coupling reactions.
• Functional Material Synthesis: Potential use in the development of materials for non-linear optics or as a ligand in metal-complex dyes.

Basic Information

Item	Detail
Product Name	6-Hydroxy-5-[[2,5-Dimethyl-4-[(2,4-Dimethylphenyl)Azo]Phenyl]Azo]Naphthalene-2-Sulfonic Acid Sodium Salt
CAS No.	6262-03-9
Molecular Formula	C26H23N4NaO4S
Molecular Weight	510.54 g/mol
Synonyms	Sodium 6-Hydroxy-5-[(2,5-dimethyl-4-[(2,4-dimethylphenyl)azo]phenyl)azo]naphthalene-2-sulfonate; C.I. Acid Orange 156; Acid Orange 156; Azo Dye Intermediate 6262-03-9; 2-Naphthalenesulfonic acid, 6-hydroxy-5-((2,5-dimethyl-4-((2,4-dimethylphenyl)azo)phenyl)azo)-, sodium salt; 5-((4-((2,4-Dimethylphenyl)azo)-2,5-dimethylphenyl)azo)-6-hydroxy-2-naphthalenesulfonic acid sodium salt
EINECS	Contact for details

Quality Control

Our 6-Hydroxy-5-[[2,5-Dimethyl-4-[(2,4-Dimethylphenyl)Azo]Phenyl]Azo]Naphthalene-2-Sulfonic Acid Sodium Salt is produced under a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting industry specifications. Comprehensive Certificates of Analysis (COA) documenting purity, heavy metal content, and other critical parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (Water)	Soluble

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