Description

4-[[1-[[(2,4-Dimethylphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo]-4'-[[1-[[(2-Methylphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo][1,1'-Biphenyl]-2,2'-Disulphonic Acid CAS NO 79682-33-0 is a high-purity, disazo-based organic intermediate with a complex biphenyl disulfonic acid structure. This compound is valued for its role as a critical precursor in the synthesis of specialized dyes and pigments, offering excellent color properties and structural stability. It is primarily sought by manufacturers in the colorants, specialty chemicals, and advanced materials industries for developing high-performance products.

Application

• Precursor for High-Performance Dyes and Pigments: Serves as a key intermediate in the synthesis of azo dyes and pigments, particularly for applications requiring specific color strength and fastness.
• Specialty Colorant Manufacturing: Used in the production of colorants for inks, coatings, and plastics where complex molecular structures are needed for stability and performance.
• Research & Development (R&D): Employed in chemical research for developing new chromophores and functional materials with specific optical properties.
• Textile Dye Intermediates: Can be utilized in the synthesis of dyes for synthetic fibers, contributing to wash and light fastness.
• Functional Material Synthesis: Potential use as a building block for creating advanced materials, such as sensors or light-absorbing compounds, due to its conjugated azo and sulfonic acid groups.

Basic Information

Item	Details
Product Name	4-[[1-[[(2,4-Dimethylphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo]-4'-[[1-[[(2-Methylphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo][1,1'-Biphenyl]-2,2'-Disulphonic Acid
CAS No.	79682-33-0
Molecular Formula	C42H38N6O10S2
Molecular Weight	850.91 g/mol
Synonyms	1,1'-Biphenyl-2,2'-disulfonic acid, 4,4'-bis[[1-[[(2,4-dimethylphenyl)amino]carbonyl]-2-oxopropyl]azo]-; CI 29050; Disazo dye intermediate; 4,4'-Bis(1-(2,4-dimethylphenylcarbamoyl)-2-oxopropylazo)biphenyl-2,2'-disulfonic acid; 79682-33-0; Biphenyl disulfonic acid azo derivative; Pigment Yellow 185 intermediate (related)
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Quality is verified through comprehensive analytical techniques including HPLC, IR, and titration methods. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory 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). 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	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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