Description

2-[[4-[Ethyl(2-Hydroxyethyl)Amino]Phenyl]Azo]-5-Methoxy-3-Methylbenzothiazolium Methyl Sulphate is a high-purity cationic dye intermediate, also known as a basic dye, valued for its intense color and affinity for polyacrylonitrile and modified polyesters. This compound is essential for manufacturers requiring consistent, vibrant coloration with excellent light and wash fastness properties. It is primarily needed by the textile industry for dyeing acrylic fibers, as well as by producers of specialty inks, paper, and leather.

Application

• Primary Dye for Acrylic Fibers: Used extensively for dyeing polyacrylonitrile (PAN) fibers and yarns, providing brilliant shades with high exhaustion.
• Coloration of Modified Polyesters: Effective for dyeing cationic-dyeable polyester (CDP) fibers.
• Specialty Ink Manufacturing: Serves as a key colorant for jet printing inks and other high-performance ink formulations.
• Paper Coloring: Employed in the production of specialty colored papers and security papers.
• Leather Finishing: Used for dyeing leather goods to achieve deep, uniform colors.
• Biological Staining: Potential application as a stain in histological and microbiological research.

Basic Information

Product Name	2-[[4-[Ethyl(2-Hydroxyethyl)Amino]Phenyl]Azo]-5-Methoxy-3-Methylbenzothiazolium Methyl Sulphate
CAS No.	68929-07-7
Molecular Formula	C21H27N4O5S2+ • CH3O4S-
Molecular Weight	Approx. 542.65 g/mol (Contact for details)
Synonyms	Basic Blue 41; C.I. 11154; Aizen Cathilon Blue 5GH; Astrazon Blue 5G; Maxilon Blue 5G; Sevron Blue 5G; 3-Methyl-2-[[4-[ethyl(2-hydroxyethyl)amino]phenyl]azo]-5-methoxybenzothiazolium methyl sulfate; Cationic Blue 5G
EINECS	Contact for details

Quality Control

Our production of 2-[[4-[Ethyl(2-Hydroxyethyl)Amino]Phenyl]Azo]-5-Methoxy-3-Methylbenzothiazolium Methyl Sulphate adheres to stringent quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and spectrophotometry for color strength, to ensure compliance with industry specifications. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical properties is provided with each shipment to guarantee traceability and consistency for your production processes.

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). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to violet powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content (KF)	≤ 5.0%
Ash Content	≤ 1.0%
Solubility	Freely soluble in water and acetic acid

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