Description

4,4'-Bis[[1-[[(4-Methylphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo][1,1'-Biphenyl]-2,2'-Disulphonic Acid is a high-purity, specialized azo dye intermediate characterized by its disulphonic acid functional groups. This compound is valued for its role in synthesizing high-performance pigments and dyes, offering excellent color strength and stability. It is primarily required by manufacturers in the colorant, textile, and specialty chemical industries for producing vivid and durable colors.

Application

• Key intermediate for the synthesis of high-performance azo pigments and dyes.
• Used in the production of colorants for textile fibers and fabrics.
• Manufacturing of specialty dyes for inks and coatings.
• Potential use in the research and development of functional dyes for electronics or sensors.
• Intermediate for colorants used in plastics and polymers.
• Starting material for laboratory-scale chemical synthesis and process development.

Basic Information

Product Name	4,4'-Bis[[1-[[(4-Methylphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo][1,1'-Biphenyl]-2,2'-Disulphonic Acid
CAS No.	85030-60-0
Molecular Formula	C40H34N8O10S2
Molecular Weight	850.87 g/mol
Synonyms	4,4'-Bis(1-((4-methylphenylcarbamoyl)-2-oxopropyl)azo)biphenyl-2,2'-disulfonic Acid; C.I. Acid Yellow 219; Acid Yellow 219; 2,2'-(4,4'-Biphenylylene)bis(azo)bis(1-(4-methylphenylcarbamoyl)-1-oxopropan-2-ol) Disulfonic Acid; 85030-60-0; 4,4'-Bis[[1-[[(4-Methylphenyl)Amino]Carbonyl]-2-Oxopropyl]Azo]biphenyl-2,2'-Disulfonic Acid
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Every batch is analyzed to confirm identity, purity, and consistency. Certificates of Analysis (COA) are available upon request, detailing key parameters such as assay and impurity profiles 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 (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to Orange Powder
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.