Description

4,4'-[(3,3'-Dichloro[1,1'-Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis[o-Cresol] CAS NO 49744-32-3 is a high-purity, diaryl azo compound characterized by its distinct molecular structure, serving as a critical intermediate and functional colorant. Its primary value lies in its ability to impart specific color and performance characteristics in advanced material formulations. This product is essential for manufacturers in the pigments, specialty polymers, and advanced coatings industries seeking reliable and consistent performance.

Application

• Primary use as a high-performance pigment intermediate for the synthesis of organic pigments, particularly azo pigments.
• Key component in the production of colored polymers and resins for engineering plastics and specialty films.
• Functional additive in advanced industrial coatings requiring specific color fastness and chemical resistance.
• Used in the formulation of inks for high-end printing applications, including security and packaging inks.
• Potential applications in dye-sensitized materials and other optoelectronic research areas.
• Serves as a chemical intermediate for further organic synthesis in pharmaceutical and agrochemical research.

Basic Information

Product Name	4,4'-[(3,3'-Dichloro[1,1'-Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis[o-Cresol]
CAS No.	49744-32-3
Molecular Formula	C26H18Cl2N4O2
Molecular Weight	489.35 g/mol
Synonyms	3,3'-Dichloro-4,4'-bis[(2-hydroxy-5-methylphenyl)azo]biphenyl; C.I. Pigment Red 171; Azo Pigment Red 171; 4,4'-[(3,3'-Dichlorobiphenyl-4,4'-diyl)di(E)diazene-2,1-diyl]bis(2-methylphenol); 2,2'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis(4-methylphenol); o-Cresol, 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis-
EINECS	256-450-7

Quality Control

Our production of 4,4'-[(3,3'-Dichloro[1,1'-Biphenyl]-4,4'-Diyl)Bis(Azo)]Bis[o-Cresol] adheres to a stringent quality management system to ensure batch-to-batch consistency and reliability. All materials undergo rigorous analytical testing, including HPLC for purity and identity confirmation. Certificates of Analysis (COA) detailing specific batch results are provided and can be tailored to meet customer-specific requirements and industry standards.

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 incompatible materials such as strong oxidizing agents. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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