Description

[2-[[4-[(2-Chloro-4-Nitrophenyl)Azo]Phenyl]Ethylamino]Ethyl](2-Hydroxypropyl)Dimethylammonium Methyl Sulphate is a specialized cationic azo dye intermediate, valued for its ability to impart strong, vibrant color and cationic properties to synthetic fibers. Its molecular structure is engineered for excellent substantivity to polyacrylonitrile and modified polyesters, ensuring deep, level dyeing with good fastness properties. This compound is essential for manufacturers of synthetic textile dyes, inkjet inks, and specialty colorants requiring a stable, functionalized cationic chromophore.

Application

• Primary application in cationic dye synthesis for acrylic and modacrylic fibers.
• Key intermediate for manufacturing specialty inks, including inkjet and textile printing inks.
• Used in the production of paper colorants and coatings.
• Potential use as a biological stain or histological dye precursor in life sciences.
• Employed in the synthesis of functional dyes for optical applications and sensors.
• Research and development of novel photographic sensitizers and light-absorbing materials.

Basic Information

Product Name	[2-[[4-[(2-Chloro-4-Nitrophenyl)Azo]Phenyl]Ethylamino]Ethyl](2-Hydroxypropyl)Dimethylammonium Methyl Sulphate
CAS No.	85187-97-9
Molecular Formula	C22H31ClN5O6S
Molecular Weight	528.02 g/mol
Synonyms	Basic Red 46:1; C.I. 110825; Quaternary Ammonium Salt of Azo Dye; 2-[[4-[(2-Chloro-4-nitrophenyl)azo]phenyl]ethylamino]ethyl(2-hydroxypropyl)dimethylammonium methyl sulfate; Cationic Azo Dye Intermediate; Astrazon Red Violet 3RN; Azo Cationic Dye Salt; 1-Propanaminium, 2-hydroxy-N,N-dimethyl-N-[2-[[4-[(2-chloro-4-nitrophenyl)azo]phenyl]ethylamino]ethyl]-, methyl sulfate (1:1)
EINECS	Contact for details

Quality Control

Our production of this cationic dye intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive analytical testing, including HPLC for purity and identity confirmation. A Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with each shipment to support your quality assurance and regulatory needs.

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 to prevent absorption of atmospheric moisture, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark red to violet powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95.0%
Loss on Drying	Max. 2.0%
Heavy Metals (as Pb)	Max. 20 ppm
Solubility (in water)	Clear, complete solution
pH (1% solution)	5.0 - 7.0

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