Description

5-(Acetamido)-4-Hydroxy-3-[[4-[[[3-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Amino]Carbonyl]Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid, Sodium Salt is a high-purity, water-soluble reactive dye intermediate characterized by its complex polyfunctional aromatic structure. This compound is engineered to provide exceptional chromophore stability and binding affinity in advanced coloration processes. It is primarily utilized by manufacturers in the textile, specialty ink, and high-performance pigment industries seeking to produce vivid, wash-fast colors.

Application

• Reactive Dye Synthesis: A key intermediate for manufacturing high-grade reactive dyes for cotton, wool, and nylon fibers.
• Textile Coloration: Imparts excellent wet fastness, lightfastness, and brilliant shades in textile printing and dyeing.
• Inkjet Ink Formulation: Used in the production of professional and industrial-grade pigment inks for digital textile printing.
• Functional Dye Production: Serves as a precursor for dyes used in biological staining, sensors, and other high-tech applications.
• Research & Development: Employed in chemical research for developing novel chromophores and studying azo dye chemistry.

Basic Information

Item	Details
Product Name	5-(Acetamido)-4-Hydroxy-3-[[4-[[[3-[[2-(Sulphooxy)Ethyl]Sulphonyl]Phenyl]Amino]Carbonyl]Phenyl]Azo]Naphthalene-2,7-Disulphonic Acid, Sodium Salt
CAS No.	85940-66-5
Molecular Formula	C33H25N5O16S4Na3 (or related sodium salt form)
Molecular Weight	Contact for details
Synonyms	Reactive Dye Intermediate 85940-66-5; C.I. Reactive Red; Sodium 5-acetamido-4-hydroxy-3-((4-((3-((2-sulfooxyethyl)sulfonyl)phenyl)carbamoyl)phenyl)diazenyl)naphthalene-2,7-disulfonate; Azo dye intermediate; Sulphonated naphthalene azo dye; Textile dye precursor; Acid dye intermediate (related class)
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and purity. Each lot is analyzed using advanced techniques like HPLC and spectrophotometry to confirm identity and strength. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at 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 handling.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Solubility (in Water)	Clear solution at 1%
Heavy Metals (as Pb)	Max. 20 ppm

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