Description

Hydrogen N-[4-[[4-[butyl(2-sulphonatoethyl)amino]phenyl][4-[(4-ethoxyphenyl)amino]phenyl]methylene]cyclohexa-2,5-dien-1-ylidene]-N-(2-sulphonatoethyl)butylammonium, monosodium salt 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 utilized by manufacturers in the textile, paper, and biotechnology sectors seeking consistent, high-performance colorants and biological stains.

Application

• Textile Dyeing: Used as a cationic dye for acrylic, modacrylic, and other synthetic fibers, providing excellent color fastness and brightness.
• Paper Coloring: Employed in the production of specialty papers, including colored tissue and decorative paper, where direct dyeing is required.
• Biological Staining: Serves as a vital stain in histology and microbiology for visualizing cellular structures, particularly as a component in complex staining protocols.
• Ink Manufacturing: A key pigment for formulating inks used in ink-jet printing, stamp pads, and other specialty writing fluids.
• Leather Finishing: Applied in the dyeing of leather goods to achieve vibrant and uniform coloration.
• Analytical Chemistry: Utilized as an indicator or a complexometric agent in specific titration methods and spectrophotometric analyses.
• Research & Development: Serves as a chemical intermediate or a reference standard in organic synthesis and material science research.

Basic Information

Item	Detail
Product Name	Hydrogen N-[4-[[4-[butyl(2-sulphonatoethyl)amino]phenyl][4-[(4-ethoxyphenyl)amino]phenyl]methylene]cyclohexa-2,5-dien-1-ylidene]-N-(2-sulphonatoethyl)butylammonium, monosodium salt
CAS No.	5863-47-8
Molecular Formula	C45H55N4O8S2Na
Molecular Weight	867.06 g/mol
Synonyms	Basic Blue 7; Victoria Pure Blue BO; C.I. 42595; Aizen Victoria Pure Blue BOH; Astra Blue B; Ethyl Victoria Blue B; Ethyl Victoria Pure Blue B; Pure Blue BOH; Pure Blue BO; Monosodium 4-[[4-[butyl(2-sulfoethyl)amino]phenyl][4-[(4-ethoxyphenyl)amino]phenyl]methylene]-N-(2-sulfoethyl)cyclohexa-2,5-dien-1-ylidene]butylammonium hydroxide inner salt
EINECS	227-515-5

Quality Control

Our production of Hydrogen N-[4-[[4-[butyl(2-sulphonatoethyl)amino]phenyl][4-[(4-ethoxyphenyl)amino]phenyl]methylene]cyclohexa-2,5-dien-1-ylidene]-N-(2-sulphonatoethyl)butylammonium, monosodium salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, spectrophotometry for color strength, and tests for residual solvents and heavy metals. A Certificate of Analysis (COA) detailing all specifications is provided with each 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 product is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to humidity or direct light may affect its stability and colorimetric properties. Keep 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%
Color Strength	100 ± 5% (vs. Standard)
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, blue solution

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