Description

4-[[4-[[1-[[(2,4-Dimethoxyphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo]Phenyl]Azo]Benzenesulphonic Acid is a specialized azo dye intermediate of significant commercial importance, primarily valued for its role in synthesizing high-performance colorants. Its complex molecular structure, featuring multiple azo linkages and a sulfonic acid group, provides the chromophoric backbone necessary for producing vivid and stable dyes and pigments. This compound is essential for manufacturers in the textile, ink, and specialty coatings industries seeking to develop products with specific color fastness and solubility properties. The CAS number for this product is 60143-55-7.

Application

This azo intermediate serves as a critical building block in the production of advanced colorants. Its primary and derived applications include:

• Textile Dye Synthesis: A key precursor for manufacturing acid dyes and direct dyes used on nylon, silk, wool, and paper.
• Industrial Pigment Production: Used in the synthesis of organic pigments for plastics, paints, and inks, offering good thermal stability and color strength.
• Functional Dyes: Potential intermediate for creating dyes used in non-textile applications such as lasers, optical data storage, and solar cells.
• Research & Development: Serves as a standard or starting material in chemical research for developing new chromophores and studying azo chemistry.
• Specialty Coatings: Used in formulating colorants for automotive and industrial coatings requiring specific performance criteria.

Basic Information

Product Name	4-[[4-[[1-[[(2,4-Dimethoxyphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo]Phenyl]Azo]Benzenesulphonic Acid
CAS No.	60143-55-7
Molecular Formula	C30H27N5O8S
Molecular Weight	617.63 g/mol
Synonyms	Benzenesulfonic acid, 4-[[4-[[1-[[(2,4-dimethoxyphenyl)amino]carbonyl]-2-oxopropyl]azo]phenyl]azo]-; Acid Yellow 219 (C.I. 480140); C.I. 480140; 4-((4-((1-((2,4-Dimethoxyphenyl)carbamoyl)-2-oxopropyl)diazenyl)phenyl)diazenyl)benzenesulfonic acid; Yellow 219; Azo dye intermediate 60143-55-7
EINECS	Contact for details

Quality Control

Our production of 4-[[4-[[1-[[(2,4-Dimethoxyphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo]Phenyl]Azo]Benzenesulphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure high purity, consistent chemical structure, and batch-to-batch reproducibility. Key parameters such as assay, impurity profile, and physical characteristics are verified. A detailed Certificate of Analysis (COA) documenting these results is provided with each shipment to support your quality assurance and regulatory compliance needs.

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). Keep away from strong oxidizing agents and incompatible materials. Due to its complex organic structure, prolonged exposure to elevated temperatures or humidity should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Yellow to Orange Powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 5.0%
Solubility	Soluble in alkaline water, DMF, DMSO

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