Description

Potassium Sodium 6-(Acetylamino)-3-[[2,5-Dimethoxy-4-[[2-(Sulphonatothio)Ethyl]Sulphonyl]Phenyl]Azo]-4-Hydroxynaphthalene-2-Sulphonate is a high-purity, water-soluble azo dye intermediate with a complex, reactive structure. This compound matters for its role in synthesizing specialized dyes and pigments, offering excellent color strength and binding properties. It is primarily needed by manufacturers in the textile, ink, and specialty chemical industries seeking to produce high-performance colorants with specific fastness and solubility profiles.

Application

• Textile Dyeing: As a key intermediate for producing reactive and direct dyes for cotton, wool, and nylon fibers.
• Ink Formulation: Used in the synthesis of pigments for high-quality printing inks, including inks for packaging and security printing.
• Specialty Pigments: Serves as a precursor for creating complex, high-value pigments used in coatings and plastics.
• Biological Staining: Potential use as an intermediate for developing histological stains and diagnostic dyes in life sciences.
• Functional Dyes: Research and development of dyes for non-textile applications, such as in optical data storage or solar cells.
• Chemical Synthesis: Acts as a versatile building block in organic synthesis for creating other sulfonated azo compounds.

Basic Information

Product Name	Potassium Sodium 6-(Acetylamino)-3-[[2,5-Dimethoxy-4-[[2-(Sulfonatothio)Ethyl]Sulfonyl]Phenyl]Azo]-4-Hydroxynaphthalene-2-Sulfonate
CAS No.	94249-21-5
Molecular Formula	C28H24KN4NaO13S4
Molecular Weight	823.86 g/mol
Synonyms	6-Acetamido-3-[[2,5-dimethoxy-4-[(2-sulfonatoethyl)sulfonyl]phenyl]azo]-4-hydroxy-2-naphthalenesulfonic acid, potassium sodium salt; Reactive Dye Intermediate; Azo Dye Intermediate; C.I. Reactive Red 238 (related); Potassium Sodium Salt of a Sulfonated Azo Dye; 4-Hydroxy-3-[[4-[(2-sulfoethyl)sulfonyl]-2,5-dimethoxyphenyl]azo]-6-(acetylamino)-2-naphthalenesulfonic acid, potassium sodium salt; 94249-21-5
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is tested against rigorous in-house specifications, with Certificates of Analysis (COA) provided to verify critical parameters such as assay, impurity profile, and solubility. We support compliance with global chemical management regulations, and our quality system is designed to meet the demands of industrial-scale synthesis.

Storage

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

Specification

Item	Specification
Appearance	Dark red to 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.