Description

n-Methyl-n-[4-[[4-(Dimethylamino)Phenyl][1-Sulfonato-4,7-Bis(Sodiosulfo)-2-Naphthalenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Methanaminium is a high-purity, water-soluble anionic dye belonging to the polymethine cyanine class, distinguished by its multiple sulfonate groups. This compound matters for its exceptional light absorption properties and stability in aqueous systems, making it a critical functional component in advanced materials. It is primarily needed by manufacturers in the specialty chemicals, analytical reagent, and high-tech material sectors for precise colorimetric and photonic applications.

Application

• Biological Staining Agent: Used as a specific dye for staining nucleic acids, proteins, and cellular structures in histology and cytology.
• Analytical Chemistry Reagent: Serves as a sensitive colorimetric probe or indicator in spectrophotometric assays and detection kits.
• Laser Dye & Optical Material: Functions as an active medium in tunable dye lasers and as a component in non-linear optical materials due to its photostability.
• Sensitizer for Photographic Emulsions: Employed to enhance the spectral sensitivity of silver halide photographic films and plates.
• Inkjet Printing Inks: Provides vibrant, lightfast color for high-performance specialty and photographic-grade inks.
• Textile Dyeing: Used for dyeing natural and synthetic fibers, particularly where high water solubility and color intensity are required.

Basic Information

Product Name	n-Methyl-n-[4-[[4-(Dimethylamino)Phenyl][1-Sulfonato-4,7-Bis(Sodiosulfo)-2-Naphthalenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Methanaminium
CAS No.	6391-39-5
Molecular Formula	C34H31N3O7S3·xNa
Molecular Weight	Contact for details
Synonyms	Basic Blue 20; C.I. 42585; Victoria Blue B; Victoria Pure Blue B; Aniline Blue WS; Methyl Blue (related); [4-[4-(Dimethylamino)phenyl][1-sulfo-4,7-disulfo-2-naphthyl]methylene]-2,5-cyclohexadien-1-ylidene]dimethylammonium hydroxide inner salt sodium salt; Astrazon Blue BG
EINECS	Contact for details

Quality Control

Our n-Methyl-n-[4-[[4-(Dimethylamino)Phenyl][1-Sulfonato-4,7-Bis(Sodiosulfo)-2-Naphthalenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Methanaminium is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and spectrophotometry for color strength, to ensure compliance with precise customer specifications and industry standards. Certificates of Analysis (COA) documenting identity, purity, and relevant physical parameters are available upon request.

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 after each use to prevent moisture absorption, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystalline solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	Min. 95%
Color Value	Contact for details
Loss on Drying	Max. 5.0%
Water Solubility	Completely soluble
Heavy Metals (as Pb)	Max. 20 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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