Description

3,3'-Ureylenebis[6-[[2-Oxo-1-[[4-[(4-Sodiosulfophenyl)Azo]Phenyl]Aminocarbonyl]Propyl]Azo]Benzenesulfonic Acid Sodium] Salt is a high-purity, water-soluble azo dye intermediate of significant industrial importance. Its complex molecular structure provides excellent chromophoric properties, making it a critical precursor for synthesizing high-performance dyes and pigments. This compound is essential for manufacturers in the colorant industry seeking to produce vivid, stable, and compliant shades for demanding applications.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-value, complex azo dyes for textiles, leather, and paper.
• Specialty Pigment Production: Used in the manufacture of pigments for inks, coatings, and plastics requiring specific color fastness and stability.
• Research & Development: A vital compound for R&D laboratories developing new chromophores and studying dye chemistry.
• Functional Colorants: Potential use in the production of dyes for non-textile applications, such as indicators or sensitizers.

Basic Information

Product Name	3,3'-Ureylenebis[6-[[2-Oxo-1-[[4-[(4-Sodiosulfophenyl)Azo]Phenyl]Aminocarbonyl]Propyl]Azo]Benzenesulfonic Acid Sodium] Salt
CAS No.	6505-06-2
Molecular Formula	C44H32N10Na4O18S4 (Contact for exact confirmation)
Molecular Weight	~1250 g/mol (Contact for details)
Synonyms	Acid Red 404; C.I. 18075; Sodium 3,3'-ureylenebis[6-[(1-carboxy-2-oxopropyl)azo]benzenesulfonate] derivative; Azo dye intermediate 6505-06-2; 3,3'-[Carbonylbis(imino-4,1-phenyleneazo)]bis[6-[(1-carboxy-2-oxopropyl)azo]benzenesulfonic acid] tetrasodium salt; Benzenesulfonic acid, 3,3'-[carbonylbis[imino(4,1-phenyleneazo)]]bis[6-[(1-carboxy-2-oxopropyl)azo]-, tetrasodium salt
EINECS	Contact for details

Quality Control

Our 3,3'-Ureylenebis[6-[[2-Oxo-1-[[4-[(4-Sodiosulfophenyl)Azo]Phenyl]Aminocarbonyl]Propyl]Azo]Benzenesulfonic Acid Sodium] Salt is produced under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistent purity, identity, and performance as a dye intermediate. Comprehensive Certificates of Analysis (COA) detailing assay, impurity profile, and physical characteristics are available upon request 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 quality. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 5.0%
Sulfated Ash	Contact for details
Heavy Metals	< 20 ppm
Solubility (Water)	Soluble

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