Description

Sodium m-[[4-[[4-[(2-Cyanoethyl)Ethylamino]-o-Tolyl]Azo]-1-Naphthyl]Azo]Benzenesulphonate is a high-purity, synthetic organic dye intermediate characterized by its complex azo-based molecular structure. This compound matters for its role as a critical precursor in the production of specialized, high-performance dyes and pigments, offering excellent color strength and application versatility. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries seeking to develop vibrant and durable colorants.

Application

• Primary intermediate for the synthesis of high-value azo dyes and pigments used in textile coloration.
• Key component in manufacturing colorants for inks, including those for packaging and security printing applications.
• Used in the production of dyes for specialty coatings and industrial paints requiring specific lightfastness and chemical resistance.
• Potential precursor in the development of functional dyes for non-textile applications, such as in electronics or imaging technologies.
• Employed in research and development laboratories for creating novel chromophores with tailored properties.

Basic Information

Product Name	Sodium m-[[4-[[4-[(2-Cyanoethyl)Ethylamino]-o-Tolyl]Azo]-1-Naphthyl]Azo]Benzenesulphonate
CAS No.	85536-95-4
Molecular Formula	C28H25N6NaO3S
Molecular Weight	548.60 g/mol
Synonyms	Sodium 3-[[4-[[4-[(2-Cyanoethyl)ethylamino]-2-methylphenyl]azo]-1-naphthyl]azo]benzenesulphonate; C.I. Disperse Red 338 (sodium salt form); Benzenesulfonic acid, 3-[[4-[[4-[(2-cyanoethyl)ethylamino]-2-methylphenyl]azo]-1-naphthyl]azo]-, sodium salt; m-[[4-[[4-[(2-Cyanoethyl)Ethylamino]-o-Tolyl]Azo]-1-Naphthyl]Azo]Benzenesulphonic Acid Sodium Salt; Azo dye intermediate 85536-95-4; Disperse dye intermediate sodium salt
EINECS	Contact for details

Quality Control

Our Sodium m-[[4-[[4-[(2-Cyanoethyl)Ethylamino]-o-Tolyl]Azo]-1-Naphthyl]Azo]Benzenesulphonate is produced under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including chromatographic purity assays and identity confirmation, to meet exacting customer specifications. Certificates of Analysis (COA) documenting all critical quality attributes are available upon request to support your quality assurance and regulatory needs.

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 absorption of atmospheric moisture, which can affect product performance and handling.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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