Description

Disodium 2-[[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-1-cyclohexa-2,5-dienylidene]methyl]benzenesulfonate is a high-purity, water-soluble organic dye intermediate and functional chemical. This compound is valued for its strong chromophore and anionic sulfonate groups, making it a critical component for imparting color and specific functional properties in advanced materials. It is primarily sought after by manufacturers in the textile dyeing, specialty ink formulation, and functional polymer industries for its performance and consistency.

Application

• Textile Dyeing & Printing: As a key intermediate for producing reactive and acid dyes for nylon, silk, and wool.
• Specialty Inks: Used in the formulation of high-performance inks for inkjet, security printing, and packaging applications.
• Functional Polymers: Acts as a monomer or additive to introduce color and ionic character into polymers for membranes or conductive materials.
• Biological Staining: Potential use as a staining agent or fluorescent probe in histology and diagnostic applications.
• Paper Coloring: Employed in the production of high-grade, colored papers and coatings.
• Research & Development: Serves as a building block for synthesizing novel chromophores and studying structure-property relationships in organic chemistry.

Basic Information

Item	Details
Product Name	Disodium 2-[[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-1-cyclohexa-2,5-dienylidene]methyl]benzenesulfonate
CAS No.	83155-13-9
Molecular Formula	C37H35N2Na2O6S2
Molecular Weight	704.78 g/mol
Synonyms	Acid Blue 260; C.I. 621525; Disodium 4-[(4-ethyl(3-sulfobenzyl)amino)phenyl][4-ethyl(3-sulfobenzyl)iminocyclohexa-2,5-dien-1-ylidene]methyl]benzenesulfonate; 2-[[4-[Ethyl[(3-sulfophenyl)methyl]amino]phenyl][4-[ethyl[(3-sulfophenyl)methyl]iminiumylidene]-2,5-cyclohexadien-1-ylidene]methyl]benzenesulfonic acid disodium salt; Reactive Blue 260 (related class); Sulfo Cyanine dye intermediate; Triphenylmethane dye derivative
EINECS	Contact for details

Quality Control

Our production of disodium 2-[[4-[ethyl-[(3-sulfonatophenyl)methyl]amino]phenyl]-[4-[ethyl-[(3-sulfonatophenyl)methyl]azaniumylidene]-1-cyclohexa-2,5-dienylidene]methyl]benzenesulfonate adheres to a stringent quality management system. Every batch is tested to ensure high purity, consistent chromaticity, and solubility, meeting the rigorous demands of industrial applications. Certificates of Analysis (COA) detailing identity, assay, and impurity profiles are provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product performance and stability.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
pH (1% Solution)	6.0 - 8.0
Solubility in Water	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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