Description

n-[4-[(4-Amino-3-Sulfonatophenyl)(4-Ethylamino-3-Methyl-5-Sodiosulfophenyl)Methylene]-2-Sodiosulfo-2,5-Cyclohexadien-1-Ylidene]Aminium is a high-purity, water-soluble anionic dye intermediate characterized by its complex sulfonated aromatic structure. This compound is critical for imparting vibrant and stable color properties in advanced dye synthesis. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries requiring precise chromophore building blocks for high-performance applications.

Application

• Textile Dye Intermediate: A key precursor for synthesizing acid dyes and direct dyes used on nylon, wool, silk, and paper.
• Ink Manufacturing: Employed in the production of colorants for inks, including those for packaging, security printing, and digital applications.
• Biological Staining: Used in the formulation of histological and cytological stains for laboratory and diagnostic purposes.
• Specialty Chemical Synthesis: Serves as a functional intermediate for creating complex dyes and pigments with specific light-fastness and solubility properties.
• Research & Development: Utilized in academic and industrial R&D for developing new chromogenic materials and studying dye chemistry.

Basic Information

Product Name	n-[4-[(4-Amino-3-Sulfonatophenyl)(4-Ethylamino-3-Methyl-5-Sodiosulfophenyl)Methylene]-2-Sodiosulfo-2,5-Cyclohexadien-1-Ylidene]Aminium
CAS No.	8017-21-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Acid Blue 92; C.I. 13390; Erioglaucine A; Patent Blue AE; Food Blue 5; Wool Blue B; L-Blue 2; Aniline Blue, water soluble
EINECS	Contact for details

Quality Control

Our production of n-[4-[(4-Amino-3-Sulfonatophenyl)(4-Ethylamino-3-Methyl-5-Sodiosulfophenyl)Methylene]-2-Sodiosulfo-2,5-Cyclohexadien-1-Ylidene]Aminium adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. The material is tested against relevant industry specifications, and a comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at ambient temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Dark blue to blue-black powder or solid
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm
Water Solubility	Freely soluble

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