Description

2-[[4-[Ethyl(2-Hydroxyethyl)Amino]Phenyl]Azo]-6-Methoxy-3-Methylbenzothiazolium Hydrogen Sulphate is a high-purity cationic diazo dye intermediate, valued for its excellent chromophore properties and reactivity. This compound is essential for producing specialized, high-performance dyes and pigments with strong color fastness and specific application characteristics. It is primarily needed by manufacturers in the textile, ink, and specialty chemical industries for creating advanced coloring agents.

Application

• Textile Dyeing: A key intermediate for synthesizing cationic dyes used on acrylic, modified polyamide, and polyester fibers.
• Ink Formulation: Used in the production of specialized inks for digital printing, security inks, and high-quality packaging.
• Paper Coloring: Employed in the manufacture of dyes for high-grade, color-fast paper products.
• Biological Staining: Serves as a precursor for histochemical stains and indicators used in laboratory diagnostics and microscopy.
• Functional Dyes: Intermediate for dyes used in laser applications, optical data storage, and other high-tech fields.
• Research & Development: Used as a building block in organic synthesis for novel chromophores and functional materials in academic and industrial R&D.

Basic Information

Product Name	2-[[4-[Ethyl(2-Hydroxyethyl)Amino]Phenyl]Azo]-6-Methoxy-3-Methylbenzothiazolium Hydrogen Sulphate
CAS No.	74186-16-6
Molecular Formula	C19H25N4O5S2+ • HSO4-
Molecular Weight	Approx. 557.61 g/mol
Synonyms	Basic Blue 159; C.I. 110579; Astrazon Blue BG; Aizen Cathilon Blue BG; 2-[[4-[Ethyl(2-hydroxyethyl)amino]phenyl]azo]-6-methoxy-3-methylbenzothiazolium methyl sulfate; Cationic Blue BG; Maxilon Blue BG; DyStar Basic Blue BG
EINECS	Contact for details

Quality Control

Our production of 2-[[4-[Ethyl(2-Hydroxyethyl)Amino]Phenyl]Azo]-6-Methoxy-3-Methylbenzothiazolium Hydrogen Sulphate adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing to ensure consistency, purity, and compliance with industry specifications. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with each shipment to guarantee traceability and quality assurance for our global B2B clients.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to violet powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Water Content (KF)	≤ 3.0%
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.