Description

Potassium 2-[Ethyl[4-[(6-Methyl-2-Benzothiazol-Yl)Azo]Phenyl]Amino]Ethanesulphonate is a specialized organic salt and azo dye intermediate of significant commercial importance. This compound is valued for its role as a key precursor in the synthesis of high-performance, water-soluble cationic dyes and functional colorants. It is primarily required by manufacturers in the textile, ink, and specialty polymer industries seeking to develop products with enhanced color fastness and solubility profiles.

Application

• Primary Intermediate for Cationic Dyes: A crucial building block for synthesizing cationic (basic) dyes used in acrylic fiber dyeing.
• Textile Industry: Imparts bright, intense shades with good leveling and migration properties on polyacrylonitrile and modified polyester fibers.
• Inkjet and Digital Printing Inks: Used in the formulation of specialty inks where water solubility and color purity are critical.
• Paper Coloring: Employed in the production of high-grade, colored papers requiring specific hue and stability.
• Functional Polymer Additive: Can be incorporated into polymers to introduce color or specific ionic functionality.
• Research & Development: Serves as a reference standard and starting material in organic synthesis and color chemistry research.

Basic Information

Item	Detail
Product Name	Potassium 2-[Ethyl[4-[(6-Methyl-2-Benzothiazol-Yl)Azo]Phenyl]Amino]Ethanesulphonate
CAS No.	71673-06-8
Molecular Formula	C18H19KN4O3S2
Molecular Weight	442.60 g/mol
Synonyms	Potassium 2-[(4-((6-Methyl-2-benzothiazolyl)azo)-N-ethylphenyl)amino]ethanesulfonate; C.I. Basic Yellow 51; Astrazon Yellow 7GLL; Azoic Diazo Component 51; 2-[Ethyl[4-[(6-methyl-2-benzothiazolyl)azo]phenyl]amino]ethanesulfonic Acid Potassium Salt; 71673-06-8; Basic Yellow 51
EINECS	Contact for details

Quality Control

Our production of Potassium 2-[Ethyl[4-[(6-Methyl-2-Benzothiazol-Yl)Azo]Phenyl]Amino]Ethanesulphonate adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Each lot undergoes comprehensive analytical testing, including assay, impurity profiling, and color strength evaluation. Certificates of Analysis (COA) documenting purity, physical properties, and conformance to agreed specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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 product performance and handling.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, complete solution

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