Description

n-Ethyl-n-[4-[[4-(Diethylamino)Phenyl][2-Sulfonato-5-[(3-Sodiosulfobenzyl)Amino]Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Ethanaminium is a specialized, high-purity cationic dye intermediate with a complex polymethine structure. This compound is valued for its strong chromophoric properties and water solubility conferred by its sulfonate groups, making it a critical precursor for advanced colorants. It is primarily required by manufacturers in the textile, ink, and specialty polymer industries for producing high-performance dyes and functional pigments.

Application

• Synthesis of Cationic Dyes: A key intermediate for producing brilliant, lightfast cationic dyes used in acrylic fiber dyeing.
• Functional Ink Formulation: Used in the manufacture of inks for digital printing, security inks, and high-resolution imaging due to its color strength.
• Biological Staining Reagents: Serves as a precursor for developing specialized stains used in histology and microscopy applications.
• Laser Dye & Optical Applications: Utilized in the synthesis of dyes for tunable lasers and non-linear optical materials.
• Photographic Sensitizers: Employed in the chemical synthesis of spectral sensitizers for photographic emulsions.
• Indicator Chemistry: Acts as a building block for pH indicators and other analytical reagents.
• Research & Development: Used in academic and industrial R&D for exploring new chromophores and functional materials.

Basic Information

Item	Details
Product Name	n-Ethyl-n-[4-[[4-(Diethylamino)Phenyl][2-Sulfonato-5-[(3-Sodiosulfobenzyl)Amino]Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Ethanaminium
CAS No.	6416-27-9
Molecular Formula	C34H39N3O6S2Na
Molecular Weight	664.80 g/mol
Synonyms	Basic Blue 7; Victoria Blue B; C.I. 42595; [4-[4-(Diethylamino)phenyl][5-[[4-(ethylphenylamino)-3-sulfonatophenyl]methylamino]-2-sulfonatophenyl]methylene]-N-ethylcyclohexa-2,5-dien-1-iminium; Ethyl-[4-[[4-(diethylamino)phenyl]-[5-[(4-ethylamino-3-sulfonatophenyl)methylamino]-2-sulfonatophenyl]methylene]cyclohexa-2,5-dien-1-ylidene]azanium; C.I. Basic Blue 7; Astra Blue; Contact for EINECS details.

Quality Control

Our production of this dye intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC and spectrophotometry to verify identity and strength. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with every shipment to support your quality assurance 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95.0%
Loss on Drying	Max. 5.0%
Sulfated Ash	Max. 1.0%
Heavy Metals (as Pb)	Max. 20 ppm
Solubility (in Water)	Clear, blue solution

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