Description

7-[[3-(Acetamido)Benzoyl]Amino]-4-Hydroxy-3-[[2-Methyl-4-[(2-Methyl-4-Sulphophenyl)Azo]Phenyl]Azo]Naphthalene-2-Sulphonic Acid, Sodium Salt is a high-purity, synthetic azo dye intermediate of significant commercial importance. Its complex molecular structure, featuring multiple azo linkages and sulphonic acid groups, makes it a critical precursor for producing vivid and stable colorants. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to develop high-performance dyes with excellent fastness properties. Its consistent quality and reliable supply are paramount for downstream production processes.

Application

• Primary Intermediate for Reactive Dyes: Serves as a key building block in the synthesis of high-quality reactive dyes for cotton and other cellulosic fibers.
• Textile Colorant Production: Used in manufacturing dyes that offer excellent wash, light, and rub fastness for the textile industry.
• Inkjet and Printing Ink Formulations: Employed in the production of specialized pigments and dyes for high-resolution inks, providing vibrant color and stability.
• Leather and Paper Dyeing: Acts as an intermediate for dyes used in coloring leather goods and specialty papers.
• Research & Development: Utilized in chemical R&D for developing novel chromophores and studying azo dye chemistry and applications.
• Specialty Coatings and Polymers: Incorporated as a colorant intermediate in coatings, plastics, and polymers requiring specific hue and durability.

Basic Information

Product Name	7-[[3-(Acetamido)Benzoyl]Amino]-4-Hydroxy-3-[[2-Methyl-4-[(2-Methyl-4-Sulphophenyl)Azo]Phenyl]Azo]Naphthalene-2-Sulphonic Acid, Sodium Salt
CAS No.	94108-93-7
Molecular Formula	C33H26N6O8S2Na
Molecular Weight	733.71 g/mol
Synonyms	7-[[3-(Acetamido)benzoyl]amino]-4-hydroxy-3-[[2-methyl-4-[(2-methyl-4-sulfophenyl)azo]phenyl]azo]-2-naphthalenesulfonic acid, sodium salt; C.I. Reactive Red 198 (Intermediate); Sodium 7-[(3-acetamidobenzoyl)amino]-4-hydroxy-3-{[2-methyl-4-[(2-methyl-4-sulfonatophenyl)diazenyl]phenyl]diazenyl}naphthalene-2-sulfonate; Reactive Red 198 intermediate; Azo dye intermediate 94108-93-7; RR 198 intermediate
EINECS	Contact for details

Quality Control

Our production of this azo dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation and spectrophotometric analysis for color strength. We provide full traceability and Certificates of Analysis (COA) are available upon request, detailing all critical specifications to support your quality assurance protocols.

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 stability and performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Area %)
Moisture Content (KF)	≤ 5.0%
Ash Content	≤ 20.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Partially soluble, forms colloidal solution

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