Description

Sodium 3-[[4-[(2-Methoxy-5-Methylphenyl)Azo]-1-Naphthyl]Azo]Benzenesulphonate is a high-purity, synthetic azo dye intermediate. This compound is valued for its role in producing vivid and stable colorants, particularly in applications requiring specific shades of red and orange. It is primarily needed by manufacturers in the textile, ink, and specialty polymer industries for precise color formulation and batch-to-batch consistency.

Application

• Textile Dyeing: A key intermediate for synthesizing specific azo dyes used in coloring natural and synthetic fibers.
• Ink Manufacturing: Used in the production of pigments for printing inks, including packaging and security inks.
• Plastic and Polymer Coloring: Employed as a colorant precursor for masterbatches used in plastics and synthetic materials.
• Leather Finishing: Utilized in dye formulations for achieving durable and vibrant colors on leather goods.
• Paper Coatings: Applied in specialty paper coatings and decorative paper products.
• Research & Development: Serves as a reference standard and building block in chemical R&D for novel dye synthesis.

Basic Information

Product Name	Sodium 3-[[4-[(2-Methoxy-5-Methylphenyl)Azo]-1-Naphthyl]Azo]Benzenesulphonate
CAS No.	75627-17-7
Molecular Formula	C24H19N4NaO4S
Molecular Weight	482.49 g/mol
Synonyms	Benzenesulfonic acid, 3-[[4-[(2-methoxy-5-methylphenyl)azo]-1-naphthalenyl]azo]-, sodium salt (1:1); Sodium 3-((4-((2-methoxy-5-methylphenyl)diazenyl)naphthalen-1-yl)diazenyl)benzenesulfonate; C.I. Disperse Red 277 (related dye class); Azo dye intermediate RED (common industry designation); 1-Naphthalenesulfonic acid derivative azo dye; Sodium salt of a disazo dye intermediate
EINECS	Contact for details

Quality Control

Our Sodium 3-[[4-[(2-Methoxy-5-Methylphenyl)Azo]-1-Naphthyl]Azo]Benzenesulphonate is manufactured under a strict quality management system. Each batch undergoes rigorous 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). 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	Reddish-brown to dark red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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