Description

[4-[Bis[4-(Dimethylamino)Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Dimethylammonium Hydroxide is a specialized cationic dye intermediate and a key precursor for Victoria Blue dyes. This compound matters for its role in producing high-value, intensely colored pigments and dyes with excellent tinctorial strength and lightfastness. It is primarily needed by manufacturers in the dye and pigment, specialty chemical, and analytical reagent industries seeking reliable, high-purity intermediates for their synthesis processes.

Application

• Primary Precursor for Victoria Blue Dyes: Essential for the synthesis of Victoria Blue B, R, and BO, which are critical cationic dyes.
• Specialty Pigment Manufacturing: Used in the production of high-performance pigments for inks, coatings, and plastics requiring vivid blue/violet hues.
• Biological Staining: Serves as an intermediate for histological stains used in microscopy and biomedical research.
• Photographic Sensitizers: Employed in the formulation of certain light-sensitive materials and photographic chemicals.
• Electrochromic Materials: Investigated for use in smart windows and display technologies due to its redox-active properties.
• Analytical Chemistry: Utilized as a reagent or standard in specific colorimetric assays and analytical methods.

Basic Information

Product Name	[4-[Bis[4-(Dimethylamino)Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Dimethylammonium Hydroxide
CAS No.	35919-71-2
Molecular Formula	C25H30N3O
Molecular Weight	388.53 g/mol
Synonyms	Victoria Blue B Base; Basic Blue 7 Free Base; 4-[(4-Dimethylaminophenyl)(4-imino-2,5-cyclohexadien-1-ylidene)methyl]-N,N-dimethylbenzenaminium hydroxide; C.I. 42595 Base; N-[4-[[4-(Dimethylamino)phenyl][4-(dimethyliminio)-2,5-cyclohexadien-1-ylidene]methyl]phenyl]-N-methylmethanaminium hydroxide; Aniline, 4,4'-[(4-imino-2,5-cyclohexadien-1-ylidene)methylene]bis[N,N-dimethyl]-, hydroxide; Victoria Blue OH Base
EINECS	Contact for details

Quality Control

Our production of [4-[Bis[4-(Dimethylamino)Phenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Dimethylammonium Hydroxide adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity suitable for sensitive synthesis. Each lot undergoes comprehensive analysis including HPLC for assay and impurity profiling, spectrophotometric analysis for color value, and identity confirmation (IR). Certificates of Analysis (COA) detailing all specifications are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed after opening to minimize exposure to atmospheric moisture and light to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-green crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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