Description

n-[4-[[4-[Bis(2-Hydroxyethyl)Amino]Phenyl](3-Sulfonatophenyl)Methylene]-2,5-Cyclohexadien-1-Ylidene]-2-Hydroxy-n-(2-Hydroxyethyl)Ethanaminium is a high-purity, sulfonated triarylmethane dye intermediate known for its intense color and water solubility. This compound is valued for its role as a key precursor in synthesizing specialized dyes and pigments with excellent lightfastness and chemical stability. It is primarily required by manufacturers in the textile, ink, and specialty coatings industries for producing vibrant, durable colorants.

Application

• Textile Dye Manufacturing: A critical intermediate for producing cationic and reactive dyes used on cotton, wool, and synthetic fibers.
• Inkjet and Printing Inks: Used in the synthesis of dyes for high-quality inks, providing bright colors and good waterfastness.
• Industrial Pigments: Serves as a building block for creating organic pigments used in plastics, paints, and coatings.
• Biological Staining: Potential use as a precursor for histological stains and indicators in laboratory settings.
• Photographic and Imaging Materials: Can be utilized in the production of light-sensitive materials and color filters.
• Research & Development: Employed in chemical research for developing new chromophores and functional dyes.

Basic Information

Product Name	n-[4-[[4-[Bis(2-Hydroxyethyl)Amino]Phenyl](3-Sulfonatophenyl)Methylene]-2,5-Cyclohexadien-1-Ylidene]-2-Hydroxy-n-(2-Hydroxyethyl)Ethanaminium
CAS No.	63217-00-5
Molecular Formula	C27H33N2O7S-
Molecular Weight	529.63 g/mol
Synonyms	Basic Blue 7; Victoria Pure Blue BO; C.I. 42595; Aizen Victoria Pure Blue BOH; Astrazon Blue BG; 4-[[4-[Bis(2-hydroxyethyl)amino]phenyl][4-(ethylmethylamino)phenyl]methylene]-N-ethyl-2,5-cyclohexadien-1-iminium sulfate; Ethyl[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](4-hydroxy-2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]ammonium hydroxide inner salt (common trade name variations).
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality protocols to ensure batch-to-batch consistency and high purity suitable for industrial synthesis. Quality is verified through analytical methods including HPLC, UV-Vis spectroscopy, and titration. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles 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 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 crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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