Description

Trisodium Hydrogen [[4-[[4-[[4-[(1-Hydroxy-4-Sulphonato-2-Naphthyl)Azo]-7-Sulphonato-1-Naphthyl]Azo]-7-Sulphonato-1-Naphthyl]Azo]Phenyl]Amino]Oxoacetate is a high-purity, water-soluble azo dye intermediate of significant industrial importance. This compound is valued for its role in synthesizing complex, high-performance dyes and pigments with excellent color fastness and stability. It is primarily needed by manufacturers in the textile, ink, and specialty coatings industries seeking to produce vibrant and durable colors.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-grade reactive dyes for cotton and other cellulosic fibers.
• Production of Acid Dyes: Used in manufacturing acid dyes for coloring wool, silk, and nylon with bright shades and good wet-fastness.
• Specialty Pigment Synthesis: Serves as a precursor for creating high-performance organic pigments used in inks and coatings.
• Textile Printing Inks: An essential component in formulating inks for digital and screen printing on textiles.
• Leather Dyeing: Employed in the production of dyes for the leather tanning and finishing industry.
• Paper Coloring: Used in the manufacture of dyes for specialty paper products requiring specific color properties.
• Research & Development: Serves as a critical reagent in chemical R&D for developing new chromophores and functional dyes.

Basic Information

Item	Detail
Product Name	Trisodium Hydrogen [[4-[[4-[[4-[(1-Hydroxy-4-Sulphonato-2-Naphthyl)Azo]-7-Sulphonato-1-Naphthyl]Azo]-7-Sulphonato-1-Naphthyl]Azo]Phenyl]Amino]Oxoacetate
CAS No.	68400-56-6
Molecular Formula	C44H24N7Na3O19S6 (Contact for exact confirmation)
Molecular Weight	~1243 g/mol (Contact for exact confirmation)
Synonyms	Trisodium 1-hydroxy-4-({4-[(4-{[4-(1-hydroxy-4-sulphonato-2-naphthyl)diazenyl]-7-sulphonato-1-naphthyl}diazenyl)-7-sulphonato-1-naphthyl]diazenyl}phenyl)carbamoylformate; C.I. Reactive Black 5 Intermediate; Polyazo dye intermediate; Tetrasulfonated azo dye precursor; Reactive dye intermediate 68400-56-6; Azo dye building block
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Every lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to meet precise customer specifications. Certificates of Analysis (COA) detailing all test results are provided with each shipment.

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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of moisture.

Specification

Item	Specification
Appearance	Dark brown to black powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95% (Typical 97-99%)
Moisture Content	≤ 5.0%
Solubility (in Water)	Clear solution
Heavy Metals (as Pb)	≤ 20 ppm
Sulfated Ash	Contact for details

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