Description

Tetrasodium 4-[[1-Hydroxy-6-[[[[5-Hydroxy-6-[(2-Methyl-4-Sulphonatophenyl)Azo]-7-Sulphonato-2-Naphthyl]Amino]Carbonyl]Amino]-3-Sulphonato-2-Naphthyl]Azo]Benzoate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex, multi-sulfonated structure provides excellent solubility and reactivity, making it a critical precursor for synthesizing high-value dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty chemical sectors seeking to produce vibrant, colorfast, and environmentally compliant colorants.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-performance reactive dyes for cotton and other cellulosic fibers.
• Production of Acid Dyes: Used in manufacturing acid dyes for coloring wool, silk, and nylon, offering good wash and light fastness.
• Specialty Pigment Synthesis: Serves as a precursor for creating complex organic pigments used in inks, paints, and plastics.
• Textile Printing Inks: An important component in formulating inks for digital and screen printing on textiles.
• Research & Development: Utilized in chemical R&D for developing novel chromophores and dye molecules with specific properties.
• Paper Coloring: Employed in the production of dyes for specialty paper and packaging applications.

Basic Information

Item	Detail
Product Name	Tetrasodium 4-[[1-Hydroxy-6-[[[[5-Hydroxy-6-[(2-Methyl-4-Sulphonatophenyl)Azo]-7-Sulphonato-2-Naphthyl]Amino]Carbonyl]Amino]-3-Sulphonato-2-Naphthyl]Azo]Benzoate
CAS No.	65072-27-7
Molecular Formula	C35H20N6Na4O16S4
Molecular Weight	Contact for details
Synonyms	Tetrasodium 1-hydroxy-6-({[5-hydroxy-6-[(2-methyl-4-sulfonatophenyl)diazenyl]-7-sulfonato-2-naphthyl]carbamoyl}amino)-3-sulfonato-2-naphthyldiazenyl]benzoate; C.I. Reactive Red 198; Reactive Red 198; Benzoic acid, 4-[[1-hydroxy-6-[[[[5-hydroxy-6-[(2-methyl-4-sulfophenyl)azo]-7-sulfo-2-naphthalenyl]amino]carbonyl]amino]-3-sulfo-2-naphthalenyl]azo]-, tetrasodium salt; Tetrasodium 4-((1-hydroxy-6-(((5-hydroxy-6-((2-methyl-4-sulfonatophenyl)diazenyl)-7-sulfonatonaphthalen-2-yl)carbamoyl)amino)-3-sulfonatonaphthalen-2-yl)diazenyl)benzoate; CAS 65072-27-7
EINECS	Contact for details

Quality Control

Our production of Tetrasodium 4-[[1-Hydroxy-6-[[[[5-Hydroxy-6-[(2-Methyl-4-Sulphonatophenyl)Azo]-7-Sulphonato-2-Naphthyl]Amino]Carbonyl]Amino]-3-Sulphonato-2-Naphthyl]Azo]Benzoate adheres to stringent quality management systems to ensure batch-to-batch consistency and purity. The material is characterized and tested against established in-house specifications to guarantee its performance as a dye intermediate. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment 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 (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture, which can affect product quality and handling.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Solubility (in Water)	Freely soluble
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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