Description

Disodium 7-Acetamido-4-Hydroxy-3-[[3-[[2-(Sulphonatooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonate is a high-purity, water-soluble anionic dye intermediate of significant commercial importance. Its complex molecular structure, featuring azo and sulphonate groups, provides excellent chromophoric properties and solubility, making it a critical precursor for synthesizing specialized dyes. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking to produce vivid and stable colorants.

Application

• Primary Intermediate for Reactive Dyes: Key building block for synthesizing high-quality reactive dyes used in cotton and cellulose fiber dyeing and printing.
• Specialty Ink Production: Used in the formulation of inks for inkjet, textile printing, and security applications requiring specific color fastness and solubility.
• Functional Dye Synthesis: Serves as a precursor for dyes with specialized functions, such as those used in biological staining or as pH indicators.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying azo dye chemistry and properties.
• Paper Coloring: Potential use in the production of dyes for high-grade paper products where specific color properties are required.

Basic Information

Item	Detail
Product Name	Disodium 7-Acetamido-4-Hydroxy-3-[[3-[[2-(Sulphonatooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonate
CAS No.	84083-04-5
Molecular Formula	C22H19N3Na2O12S3
Molecular Weight	667.56 g/mol
Synonyms	7-Acetamido-4-hydroxy-3-[[3-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]-2-naphthalenesulfonic acid disodium salt; Reactive Dye Intermediate; C.I. Reactive Red 180 intermediate; Azo dye intermediate; Disodium 7-acetamido-4-hydroxy-3-[(3-((2-sulfonatooxyethyl)sulfonyl)phenyl)azo]naphthalene-2-sulfonate; 2-Naphthalenesulfonic acid, 7-(acetylamino)-4-hydroxy-3-[[3-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]-, disodium salt
EINECS	Contact for details

Quality Control

Our production of Disodium 7-Acetamido-4-Hydroxy-3-[[3-[[2-(Sulphonatooxy)Ethyl]Sulphonyl]Phenyl]Azo]Naphthalene-2-Sulphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Every lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling. Certificates of Analysis (COA) detailing purity, identity, and specific parameters are provided and available upon request 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 a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content	≤ 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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