Description

4,4'-Bis[[1-[[(4-Chloro-2,5-Dimethoxyphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo][1,1'-Biphenyl]-2,2'-Disulphonic Acid is a specialized high-purity azo dye intermediate characterized by its complex disulfonated biphenyl structure. This compound is critical for synthesizing high-performance dyes and pigments that require excellent color fastness, solubility, and thermal stability. It is primarily sought after by manufacturers in the textile, ink, and advanced materials sectors for producing vivid and durable colorants.

Application

• Primary Intermediate for Azo Dyes: Serves as a key building block in the synthesis of high-grade, sulfonated azo dyes for textiles and fibers.
• Pigment Manufacturing: Used in the production of organic pigments for inks, coatings, and plastics, where color intensity and stability are paramount.
• Specialty Colorants: Employed in the formulation of specialty dyes for leather, paper, and other industrial applications requiring specific solubility profiles.
• Research & Development: Utilized in chemical research for developing new chromophores and functional dyes with tailored properties.
• Analytical Reagents: Can be used as a standard or reagent in analytical chemistry for method development and calibration.

Basic Information

Product Name	4,4'-Bis[[1-[[(4-Chloro-2,5-Dimethoxyphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo][1,1'-Biphenyl]-2,2'-Disulphonic Acid
CAS No.	85030-61-1
Molecular Formula	C40H34Cl2N6O14S2
Molecular Weight	933.75 g/mol
Synonyms	4,4'-Bis[(1-((4-chloro-2,5-dimethoxyphenyl)carbamoyl)-2-oxopropyl)diazenyl]-[1,1'-biphenyl]-2,2'-disulfonic acid; C.I. Acid Orange 156; Disodium 4,4'-bis[1-[(4-chloro-2,5-dimethoxyphenyl)carbamoyl]-2-oxopropyl]diazenyl]biphenyl-2,2'-disulphonate; Azo dye intermediate 85030-61-1; 2,2'-(4,4'-Biphenylylenebis(azo))bis[1-((4-chloro-2,5-dimethoxyphenyl)carbamoyl)-2-propanone]disulfonic acid
EINECS	Contact for details

Quality Control

Our production of 4,4'-Bis[[1-[[(4-Chloro-2,5-Dimethoxyphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo][1,1'-Biphenyl]-2,2'-Disulphonic Acid adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing all critical parameters 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 a controlled 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	Orange to brown powder or crystalline 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
Related Substances (HPLC)	Total impurities ≤ 3.0%

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