Description

Sodium 2-[[[2,5-Dichloro-4-[[4-(Diethylamino)-2-Methylphenyl]Azo]Phenyl]Sulphonyl]Amino]Ethanesulphonate is a high-purity, water-soluble anionic azo dye intermediate, valued for its precise chemical structure and consistent performance in demanding synthesis processes. Its primary commercial value lies in its role as a critical building block for producing specialized dyes and pigments with excellent color fastness and application properties. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking reliable intermediates for high-value colorant production.

Application

• Primary Intermediate for Reactive Dyes: A key precursor in the synthesis of high-quality reactive dyes for cotton and cellulose fiber dyeing.
• Specialty Pigment Manufacturing: Used in the production of high-performance organic pigments for inks, coatings, and plastics.
• Textile Colorants: Serves as a fundamental component in creating dyes for wool, silk, and nylon, offering good wash and light fastness.
• Liquid Crystal Dye (LCD) Synthesis: Potential application in the manufacture of dyes for electronic displays due to its specific chromophore structure.
• Analytical Chemistry Reagent: Can be utilized as a colorimetric reagent or a standard in analytical methods development.
• Research & Development: Employed in academic and industrial R&D for exploring new chromophores and functional dyes.

Basic Information

Item	Details
Product Name	Sodium 2-[[[2,5-Dichloro-4-[[4-(Diethylamino)-2-Methylphenyl]Azo]Phenyl]Sulphonyl]Amino]Ethanesulphonate
CAS No.	68959-16-0
Molecular Formula	C19H22Cl2N4NaO5S2
Molecular Weight	551.42 g/mol
Synonyms	Acid Red 337 (sodium salt); C.I. 17200; Sodium 2-[(2,5-dichloro-4-{[4-(diethylamino)-2-methylphenyl]diazenyl}benzenesulfonamido)ethanesulfonate]; 2,5-Dichloro-4-((4-(diethylamino)-2-methylphenyl)azo)-N-(2-sulfoethyl)benzenesulfonamide sodium salt; Reactive Red Dye Intermediate; Azo Dye Intermediate 68959-16-0; Benzenesulfonamide derivative sodium salt
EINECS	Contact for details

Quality Control

Our production of Sodium 2-[[[2,5-Dichloro-4-[[4-(Diethylamino)-2-Methylphenyl]Azo]Phenyl]Sulphonyl]Amino]Ethanesulphonate adheres to a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting specifications for dye intermediate applications. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance with your quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility (1% in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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