Description

Diethyl[4-[[4-(Diethylamino)Phenyl][5-[(2,4-Dinitrophenyl)Amino]-2,4-Disulphophenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Ammonium Hydroxide is a complex, high-purity organic dye intermediate and analytical reagent. This compound is valued for its precise chromophoric structure, which is critical for producing consistent and vibrant colorants in specialized applications. It serves as an essential building block for manufacturers and R&D laboratories in the dyes and pigments, analytical chemistry, and advanced materials sectors, where color fidelity and chemical purity are paramount.

Application

• Dye and Pigment Intermediate: Primary use as a precursor in the synthesis of specialized cationic and solvent dyes, particularly for textiles, inks, and plastics.
• Analytical Reagent: Employed as a colorimetric indicator or a complexing agent in specific spectrophotometric and analytical chemistry methods.
• Research & Development: Used in academic and industrial R&D for studying charge-transfer complexes, nonlinear optical materials, and advanced chromophore systems.
• Specialty Inks: A key component in formulating high-performance inks for security printing, jet inks, and other niche applications requiring specific light-fastness and color properties.
• Photographic Sensitizers: Potential application in the synthesis of sensitizing dyes for photographic and imaging technologies.
• Biological Staining: May be utilized in the development of specialized histological stains for microscopy.

Basic Information

Product Name	Diethyl[4-[[4-(Diethylamino)Phenyl][5-[(2,4-Dinitrophenyl)Amino]-2,4-Disulphophenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Ammonium Hydroxide
CAS No.	25305-96-8
Molecular Formula	C33H37N5O8S2
Molecular Weight	695.81 g/mol
Synonyms	Basic Blue 159; C.I. 51020; Victoria Blue B Base; 4-[[4-(Diethylamino)phenyl][5-[(2,4-dinitrophenyl)amino]-2-sulfophenyl]methylene]-2,5-cyclohexadien-1-ylidene]diethylammonium hydroxide, inner salt; Diethyl[4-[[4-(Diethylamino)phenyl][5-[(2,4-dinitrophenyl)amino]-2,4-disulfophenyl]methylene]-2,5-cyclohexadien-1-ylidene]ammonium hydroxide; Victoria Blue B (unsulfonated base variant name).
EINECS	Contact for details

Quality Control

Our Diethyl[4-[[4-(Diethylamino)Phenyl][5-[(2,4-Dinitrophenyl)Amino]-2,4-Disulphophenyl]Methylene]-2,5-Cyclohexadien-1-Ylidene]Ammonium Hydroxide is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and UV-Vis spectroscopy, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) detailing all test results is 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); the container must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green to blue-black powder or crystals
Identification (IR)	Conforms to reference spectrum
Identification (UV-Vis)	Conforms to reference
Assay (HPLC)	≥ 95.0% (Area %)
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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