Description

n-Methyl-n-[4-[[4-(Dimethylamino)Phenyl][4-[(3-Sulfonatobenzyl)Amino]-3-Sodiosulfophenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Methanaminium 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 various substrates, making it a critical component in specialized industrial processes. It is primarily sought by manufacturers in the textile, paper, and specialty ink industries for applications requiring vibrant, stable coloration.

Application

• Textile Dyeing: Used as a cationic dye for acrylic, modified polyamide, and silk fibers, providing excellent color fastness.
• Paper Coloring: Imparts bright, uniform color to specialty papers, including decorative and security papers.
• Biological Staining: Serves as a histological stain in laboratory settings for microscopic analysis of tissues.
• Ink Manufacturing: A key pigment for producing high-quality inks used in pens, printers, and security markings.
• Leather Finishing: Applied in the dyeing process for leather goods to achieve consistent and rich coloration.
• Indicator Chemistry: Can be utilized in the formulation of pH indicators and other analytical reagents due to its chromogenic properties.

Basic Information

Product Name	n-Methyl-n-[4-[[4-(Dimethylamino)Phenyl][4-[(3-Sulfonatobenzyl)Amino]-3-Sodiosulfophenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Methanaminium
CAS No.	5863-52-5
Molecular Formula	C30H31N3O6S2Na
Molecular Weight	616.70 g/mol
Synonyms	Basic Blue 7; Victoria Blue B; C.I. 42595; Aniline Blue; Spirit Blue; [4-[[4-(Dimethylamino)phenyl][4-[(3-sulfonatobenzyl)amino]-3-sulfonatophenyl]methylene]-2,5-cyclohexadien-1-ylidene]dimethylammonium hydroxide inner salt sodium salt; Solvent Blue 5 (related); Astra Blue (trade name variant).
EINECS	227-515-5

Quality Control

Our production of n-Methyl-n-[4-[[4-(Dimethylamino)Phenyl][4-[(3-Sulfonatobenzyl)Amino]-3-Sodiosulfophenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Methanaminium adheres to stringent quality protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for color strength, and tests for heavy metal content. Certificates of Analysis (COA) detailing all specifications are provided 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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark green to blue-black powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Color Strength	98 - 102% (vs. Standard)
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 20.0%
Heavy Metals (as Pb)	≤ 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.