Description

4-[3-Methoxy-4-[3-[2-Methoxy-4-(4-Sulfophenylazo)-5-Methylphenyl]Ureido]Phenylazo]Benzenesulfonic Acid is a high-purity, synthetic azo dye intermediate of significant industrial importance. This compound is valued for its role in producing vivid and stable colorants, particularly in applications requiring specific chromophoric properties and structural integrity. It is primarily sought by manufacturers in the dye and pigment, textile, ink, and specialty chemical industries for the synthesis of advanced color products.

Application

• Primary Intermediate for Azo Dyes & Pigments: Serves as a critical building block in the synthesis of high-performance azo dyes, contributing to color strength and lightfastness.
• Textile Dyeing: Used in the production of dyes for coloring natural and synthetic fibers, including cotton, wool, and nylon.
• Ink Formulation: Employed in the manufacture of industrial and printing inks, where consistent color quality is paramount.
• Specialty Chemical Synthesis: Acts as a key precursor in the development of complex chromophores for research and advanced material applications.
• Paper Coloring: Utilized in the production of dyes for specialty paper and packaging materials.
• Analytical Reagents & Indicators: Can be used in the formulation of pH indicators and other analytical reagents in laboratory settings.

Basic Information

Item	Detail
Product Name	4-[3-Methoxy-4-[3-[2-Methoxy-4-(4-Sulfophenylazo)-5-Methylphenyl]Ureido]Phenylazo]Benzenesulfonic Acid
CAS No.	72102-85-3
Molecular Formula	C28H26N6O8S2
Molecular Weight	638.67 g/mol
Synonyms	Benzenesulfonic acid, 4-[3-methoxy-4-[3-[2-methoxy-4-(4-sulfophenylazo)-5-methylphenyl]ureido]phenylazo]-; Azo dye intermediate 72102-85-3; 4-((3-Methoxy-4-((3-(2-methoxy-4-((4-sulfophenyl)diazenyl)-5-methylphenyl)ureido)diazenyl)phenyl)diazenyl)benzenesulfonic acid; CI 26080 (related class); Disazo dye intermediate; Sulfonated azo urea derivative
EINECS	Contact for details

Quality Control

Our production of 4-[3-Methoxy-4-[3-[2-Methoxy-4-(4-Sulfophenylazo)-5-Methylphenyl]Ureido]Phenylazo]Benzenesulfonic Acid adheres to stringent quality protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance processes.

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 sealed to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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