Description

4,4'-Dichlorobiphenyl CAS NO 2050-68-2 is a high-purity, chlorinated biphenyl derivative that serves as a critical intermediate and reference standard in advanced chemical synthesis and analytical research. Its defined structure and consistent quality are essential for ensuring the reliability and reproducibility of experimental and industrial processes. This compound is primarily utilized by research institutions, analytical laboratories, and specialty chemical manufacturers engaged in the development of advanced materials, environmental testing, and fine chemical production.

Application

• Chemical Intermediate: A key building block in the synthesis of more complex organic molecules, including liquid crystals, pharmaceuticals, and advanced polymers.
• Analytical Reference Standard: Used for the calibration of instruments and as a certified reference material (CRM) in gas chromatography (GC) and mass spectrometry (MS) for environmental and food safety testing.
• Research & Development: Employed in academic and industrial R&D for studying reaction mechanisms, material properties, and as a model compound in photochemistry and catalysis research.
• Environmental Analysis: Serves as a critical standard for the detection and quantification of polychlorinated biphenyl (PCB) congeners in soil, water, and biological samples to meet regulatory compliance.
• Material Science: Investigated for its potential use in the development of organic electronic materials and as a precursor for specialty monomers.

Basic Information

Product Name	4,4'-Dichlorobiphenyl
CAS No.	2050-68-2
Molecular Formula	C12H8Cl2
Molecular Weight	223.10 g/mol
Synonyms	4,4'-Dichlorodiphenyl; p,p'-Dichlorobiphenyl; 1,1'-Biphenyl, 4,4'-dichloro-; PCB 15; 4,4'-DCB; 4-Chlorophenyl-4'-chlorobenzene; 4,4'-Bis(chlorophenyl)
EINECS	218-135-4

Quality Control

Our 4,4'-Dichlorobiphenyl is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identification by spectroscopic methods and purity determination by chromatographic techniques. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your specifications 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 and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	148°C - 152°C
Loss on Drying	≤ 0.5%
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.