Description

n-[4-[(3-Carboxylato-4-Hydroxyphenyl)[4-(Dimethylamino)Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-Methylmethanaminium is a high-purity, water-soluble cationic dye belonging to the triarylmethane class, known for its intense color and stability. This compound is valued for its exceptional tinctorial strength and consistent batch-to-batch quality, which are critical for precise coloration in demanding industrial processes. It serves as a key intermediate and colorant for manufacturers in the textile, paper, biological staining, and specialty ink sectors.

Application

• Textile Dyeing: Used as a primary dye or colorant for wool, silk, and nylon, providing vibrant and wash-fast shades.
• Biological Staining: Acts as a vital stain in histology and microbiology for visualizing cellular structures under a microscope.
• Paper Coloring: Employed in the production of colored papers and paper products requiring high color uniformity.
• Specialty Inks: A key component in formulating inks for security printing, ballpoint pens, and other specialty applications.
• Leather Dyeing: Provides consistent and deep coloration for leather goods in the tanning industry.
• Indicator Chemistry: Can be utilized in the synthesis of pH indicators and other analytical reagents due to its distinct color change properties.

Basic Information

Product Name	n-[4-[(3-Carboxylato-4-Hydroxyphenyl)[4-(Dimethylamino)Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-Methylmethanaminium
CAS No.	10134-62-0
Molecular Formula	C24H23N2O4-
Molecular Weight	403.45 g/mol
Synonyms	Basic Blue 7; Victoria Blue B; C.I. 42595; Aniline Blue, Spirit Soluble; [4-[[4-(Dimethylamino)phenyl][4-(hydroxy-3-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]dimethylammonium hydroxide inner salt]; Solvent Blue 5; Victoria Blue BO; C.I. Basic Blue 7
EINECS	233-354-4

Quality Control

Our production of n-[4-[(3-Carboxylato-4-Hydroxyphenyl)[4-(Dimethylamino)Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]-n-Methylmethanaminium adheres to a stringent quality management system. Every batch is tested against rigorous internal specifications to ensure identity, purity, and color strength. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical parameters is provided with each shipment to guarantee traceability and compliance.

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). Keep the container tightly sealed when not in use to protect against moisture and contamination. Store away from incompatible materials.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
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.