Description

n-[4-[[4-(Diethylamino)Phenyl][4-[n-Butyl-n-(2-Sodiosulfoethyl)Amino]Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-(2-Sulfonatoethyl)-1-Butanaminium is a high-purity, water-soluble cationic dye belonging to the triarylmethane class. This compound is valued for its intense color and strong affinity for anionic substrates, making it a critical component in specialized industrial and analytical applications. It is primarily sought by manufacturers in the textile, paper, and biological staining industries for its excellent dyeing and colorimetric properties.

Application

• Textile Dyeing: Used as a cationic dye for acrylic, modified nylon, and polyester fibers, providing vibrant and wash-fast colors.
• Paper Coloring: Employed in the production of specialty papers, including colored tissue and decorative paper products.
• Biological Staining: Serves as a vital stain in histology and cytology for microscopic analysis of cellular structures.
• Ink Manufacturing: A key pigment for creating inks used in pens, printers, and other marking systems.
• Leather Processing: Applied in the dyeing of leather goods to achieve consistent and rich coloration.
• Analytical Chemistry: Utilized as a colorimetric indicator or tracer in various laboratory assays and diagnostic kits.
• Photographic Industry: Functions as a sensitizer or filter dye in certain photographic and imaging processes.

Basic Information

Product Name	n-[4-[[4-(Diethylamino)Phenyl][4-[n-Butyl-n-(2-Sodiosulfoethyl)Amino]Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-(2-Sulfonatoethyl)-1-Butanaminium
CAS No.	5844-03-1
Molecular Formula	C37H51N3O6S2Na
Molecular Weight	720.93 g/mol
Synonyms	Basic Blue 7; Victoria Blue B; C.I. 42595; Basic Blue K; Astra Blue B; Aniline Blue B; [4-[[4-(Diethylamino)phenyl][4-(ethyl(3-sulfopropyl)amino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]diethylammonium hydroxide inner salt sodium salt; Basic Blue 7 (C.I. 42595)
EINECS	227-432-2

Quality Control

Our n-[4-[[4-(Diethylamino)Phenyl][4-[n-Butyl-n-(2-Sodiosulfoethyl)Amino]Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-(2-Sulfonatoethyl)-1-Butanaminium is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for color strength, and tests for heavy metal content and insolubles. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to ensure traceability and compliance with your quality requirements.

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). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark green to blue-green powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	100% ± 3% (vs. Standard)
Loss on Drying	≤ 5.0%
Water Solubility	Completely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Ash Content (Sulfated)	≤ 1.0%

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