Description

n-Ethyl-n-[4-[[4-[n-Ethyl-n-(3-Sodiosulfobenzyl)Amino]-2-Methylphenyl](2-Sodiosulfophenyl)Methylene]-2,5-Cyclohexadien-1-Ylidene]-3-Sulfonatobenzenemethanaminium is a high-purity, water-soluble triarylmethane dye salt, valued for its intense color and stability in aqueous systems. This compound is critical for applications requiring precise colorimetric analysis and robust dye performance under specific chemical conditions. It serves as an essential reagent and colorant for manufacturers and research laboratories in the analytical chemistry, textile, and specialty ink sectors.

Application

• Analytical Chemistry Reagent: Used as a sensitive colorimetric indicator and complexometric dye in spectrophotometric assays and titration endpoints.
• Textile Dyeing: Functions as a key dye intermediate for coloring natural and synthetic fibers, particularly where water solubility and ionic properties are advantageous.
• Biological Staining: Employed in histological and cytological staining procedures for microscopic analysis in life sciences.
• Specialty Inks: A component in the formulation of high-performance inks for jet printing and security marking applications.
• Photographic Industry: Acts as a sensitizer or filter dye in certain photographic and imaging processes.
• Research & Development: Serves as a standard or intermediate in synthetic organic chemistry and materials science research.

Basic Information

Item	Details
Product Name	n-Ethyl-n-[4-[[4-[n-Ethyl-n-(3-Sodiosulfobenzyl)Amino]-2-Methylphenyl](2-Sodiosulfophenyl)Methylene]-2,5-Cyclohexadien-1-Ylidene]-3-Sulfonatobenzenemethanaminium
CAS No.	6771-89-7
Molecular Formula	C39H38N2O9S3Na2 (or related salt form)
Molecular Weight	Contact for details
Synonyms	Acid Blue 90; C.I. 42655; Wool Blue; Ethyl Blue; Ethyl Blue Sodium Salt; Ethyl Blue S; Ethyl Blue Water Soluble; Triarylmethane Blue Dye
EINECS	Contact for details

Quality Control

Our production of n-Ethyl-n-[4-[[4-[n-Ethyl-n-(3-Sodiosulfobenzyl)Amino]-2-Methylphenyl](2-Sodiosulfophenyl)Methylene]-2,5-Cyclohexadien-1-Ylidene]-3-Sulfonatobenzenemethanaminium adheres to stringent quality protocols to ensure batch-to-batch consistency and purity. Each lot is tested against comprehensive specifications, including identity, assay, and impurity profiles. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

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 (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark blue to greenish-blue powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Water Solubility	Completely soluble
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	Contact for details

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