Description

2,2'-[[3-Methyl-4-[[4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Phenyl]Imino]Bisethyl Bis(Hydrogen Sulphate), Sodium Salt is a specialized, high-value reactive dye intermediate and chemical building block. Its complex structure, featuring azo and multiple sulphonate/sulphate groups, makes it a critical precursor for synthesizing water-soluble, high-affinity dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant, wash-fast colors with excellent substrate adhesion.

Application

• Reactive Dye Synthesis: Primary intermediate for manufacturing high-performance fiber-reactive dyes used in cotton, wool, and nylon coloration.
• Textile Printing Inks: Key component in formulating inks for digital and screen printing on natural and synthetic fabrics.
• Specialty Pigment Production: Used in the synthesis of organic pigments for plastics, paints, and advanced coatings requiring specific solubility profiles.
• Biomedical Staining: Potential application as a precursor for developing histological stains and diagnostic dyes due to its chromophoric structure.
• Liquid Crystal Dyes (LCD): Intermediate for creating dyes used in display technologies where precise color and stability are paramount.
• Research & Development: Serves as a building block in organic synthesis for novel chromophores and functional materials in academic and industrial R&D.

Basic Information

Product Name	2,2'-[[3-Methyl-4-[[4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Phenyl]Imino]Bisethyl Bis(Hydrogen Sulphate), Sodium Salt
CAS No.	94157-82-1
Molecular Formula	C21H26N3Na3O16S4
Molecular Weight	837.73 g/mol
Synonyms	Sodium 2,2'-[[3-methyl-4-[(4-((2-sulphooxyethyl)sulphonyl)phenyl)azo]phenyl]imino]diethyl bis(hydrogen sulphate); Reactive Dye Intermediate 94157-82-1; 2,2'-[[3-Methyl-4-[[4-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Azo]Phenyl]Imino]Diethanol Bis(Hydrogen Sulphate) Sodium Salt; Trisodium 2-[2-[4-[4-[2-(2-hydroxyethoxy)ethylamino]-3-methylphenyl]azo]phenyl]sulphonylethoxy]ethyl sulphate; Azo dye sulphonate intermediate; CI Reactive Red 198 intermediate (related)
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and purity for sensitive synthesis processes. Quality is verified through comprehensive analytical methods including HPLC, NMR, and FTIR. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming critical parameters such as assay, impurity profile, and heavy metal content. We support compliance with global regulatory frameworks, including REACH.

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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect purity and performance. Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Brown to dark brown powder or crystalline solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, complete solution
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.