Description

1-[2-[[4-[[2,5-Dichloro-4-[(Dimethylamino)Sulphonyl]Phenyl]Azo]Phenyl]Ethylamino]Ethyl]Pyridinium Chloride is a specialized cationic azo dye intermediate of significant commercial importance. Its complex molecular structure, featuring a pyridinium moiety and a sulphonamide-linked azo group, makes it a critical precursor for synthesizing high-performance dyes and pigments. This compound is primarily sought after by manufacturers in the textile, ink, and specialty chemical industries who require precise colorants with specific fastness and application properties.

Application

• Cationic Dye Synthesis: A key intermediate for producing cationic (basic) dyes used in acrylic fiber dyeing.
• Inkjet Ink Formulation: Used in the manufacture of high-quality, color-fast inks for industrial and photographic printing.
• Paper Coloring: Employed in the production of specialty dyes for high-brightness and colored papers.
• Biological Staining: Potential use as a precursor for developing histological stains and biological markers.
• Functional Polymer Additive: Can be incorporated into polymers to impart specific optical or ionic properties.
• Research & Development: Serves as a building block in organic synthesis for novel chromophores and functional materials.

Basic Information

Item	Details
Product Name	1-[2-[[4-[[2,5-Dichloro-4-[(Dimethylamino)Sulphonyl]Phenyl]Azo]Phenyl]Ethylamino]Ethyl]Pyridinium Chloride
CAS No.	72361-39-8
Molecular Formula	C23H26Cl3N5O2S
Molecular Weight	554.90 g/mol
Synonyms	Basic Red 46 intermediate; C.I. 110825 intermediate; 1-[2-({4-[(2,5-Dichloro-4-{[(dimethylamino)sulfonyl]phenyl})diazenyl]phenyl}ethylamino)ethyl]pyridinium chloride; Pyridinium, 1-[2-[[4-[[2,5-dichloro-4-[(dimethylamino)sulfonyl]phenyl]azo]phenyl]ethylamino]ethyl]-, chloride; Cationic azo dye precursor; N-Ethyl-N-[2-(1-pyridinio)ethyl]-4-[(2,5-dichloro-4-sulfamoylphenyl)azo]aniline chloride
EINECS	Contact for details

Quality Control

Our production of 1-[2-[[4-[[2,5-Dichloro-4-[(Dimethylamino)Sulphonyl]Phenyl]Azo]Phenyl]Ethylamino]Ethyl]Pyridinium Chloride adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with agreed specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with each shipment to guarantee traceability and support your quality assurance protocols.

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). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass until use.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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