Description

n-Ethyl-n-[4-[[4-[n-Ethyl-n-(2-Sodiosulfoethyl)Amino]Phenyl][4-[(4-Ethoxyphenyl)Amino]Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-2-Sulfonatoethanaminium is a specialized, high-value organic dye intermediate belonging to the triarylmethane class. This compound matters for its role as a key precursor in synthesizing vibrant and stable cationic dyes, particularly for demanding applications requiring specific color properties and fastness. Industrial users in the textile, ink, and specialty coatings sectors rely on this chemical for producing high-performance colorants.

Application

• Dye Synthesis: Primary intermediate for manufacturing cationic (basic) dyes, especially for acrylic and modified polyester fibers.
• Textile Industry: Used in the production of dyes for fabrics requiring bright shades and good wash-fastness.
• Ink Manufacturing: Serves as a colorant precursor in the formulation of specialty printing inks, including jet inks and security inks.
• Paper Coloring: Employed in the production of dyes for high-quality paper and specialty paper products.
• Leather Dyeing: Used in the synthesis of dyes for coloring leather goods.
• Biological Staining: Potential use as an intermediate for histological stains and other biological colorants.
• Research & Development: Serves as a key reagent in chemical research for developing new chromophores and functional dyes.

Basic Information

Product Name	n-Ethyl-n-[4-[[4-[n-Ethyl-n-(2-Sodiosulfoethyl)Amino]Phenyl][4-[(4-Ethoxyphenyl)Amino]Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-2-Sulfonatoethanaminium
CAS No.	6104-62-7
Molecular Formula	C39H47N4O6S2Na
Molecular Weight	762.92 g/mol
Synonyms	Basic Blue 7; Victoria Pure Blue BO; C.I. 42595; Aizen Victoria Pure Blue BOH; Astrazon Blue BG; Ethyl, 2-[[4-[[4-(ethyl(2-sulfoethyl)amino)phenyl][4-[(4-ethoxyphenyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene](ethyl)amino]-, hydroxide, inner salt, sodium salt; 2-[[4-[[4-(Ethyl(2-sulfoethyl)amino)phenyl][4-[(4-ethoxyphenyl)amino]phenyl]methylene]-2,5-cyclohexadien-1-ylidene](ethyl)amino]ethanesulfonic acid sodium salt
EINECS	228-058-9

Quality Control

Our production of this dye intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and purity for sensitive synthesis processes. Quality is verified through comprehensive analytical testing including HPLC, UV-Vis spectroscopy, and titration methods. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles 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, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95.0%
Loss on Drying	Max. 5.0%
Water Content (Karl Fischer)	Max. 3.0%
Heavy Metals (as Pb)	Max. 20 ppm
Solubility (in Water)	Completely soluble, clear solution

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