Description

n-Ethyl-n-[4-[Bis[4-(Dimethylamino)Phenyl]Methylene]-3-Methyl-2,5-Cyclohexadien-1-Ylidene]-3-Sulfonatobenzenemethanaminium is a high-purity, sulfonated cationic dye intermediate with a complex polymethine structure. This compound matters for its exceptional chromogenic properties and water solubility, making it a critical precursor for specialized colorants. It is primarily needed by manufacturers in the specialty dyes and pigments, biological staining, and advanced material research sectors.

Application

• Precursor for Cationic Dyes: Key intermediate in synthesizing water-soluble cationic dyes for textiles (acrylic, modacrylic fibers) and paper.
• Biological Staining Reagent: Used in the formulation of specialized histological and cytological stains for microscopy.
• Laser Dye & Optical Applications: Serves as a starting material for dyes used in tunable dye lasers and non-linear optical materials.
• Functional Polymer Additive: Imparts color and specific ionic characteristics to polymers and coatings.
• Research Chemical: Utilized in academic and industrial R&D for photophysical studies and new chromophore development.
• Ink Formulation: Component in high-performance inks requiring specific solubility and color fastness properties.

Basic Information

Product Name	n-Ethyl-n-[4-[Bis[4-(Dimethylamino)Phenyl]Methylene]-3-Methyl-2,5-Cyclohexadien-1-Ylidene]-3-Sulfonatobenzenemethanaminium
CAS No.	13194-83-7
Molecular Formula	C33H38N3O3S- (Inner Salt)
Molecular Weight	556.74 g/mol
Synonyms	Basic Blue 7; Victoria Blue B; C.I. 42595; Ethyl-[4-[bis[4-(dimethylamino)phenyl]methylene]-3-methylcyclohexa-2,5-dien-1-ylidene]-3-sulfonatobenzyl-ammonium; Solvent Blue 5; Astra Blue; Victoria Blue BO; 4-[(4-Dimethylaminophenyl)(4-dimethyliminio-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]-N-ethyl-3-sulfonatobenzeneaminium
EINECS	236-167-5

Quality Control

Our production of n-Ethyl-n-[4-[Bis[4-(Dimethylamino)Phenyl]Methylene]-3-Methyl-2,5-Cyclohexadien-1-Ylidene]-3-Sulfonatobenzenemethanaminium adheres to a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometric analysis for color strength, and verification of key physical parameters. Certificates of Analysis (COA) detailing all test results are provided to ensure traceability and compliance with your specifications.

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). This material is light-sensitive (store away from light) and hygroscopic (moisture-sensitive); prolonged exposure to air, moisture, or direct light should be avoided to maintain stability and performance.

Specification

Item	Specification
Appearance	Dark green to blue-black crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Solubility (in Water)	Completely soluble, clear solution
λmax (in suitable solvent)	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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