Description

4,4′-Dichlorobiphenyl (CAS No. 2050-68-2) is a chlorinated biphenyl compound with the molecular formula C₁₂H₈Cl₂. Its IUPAC name is 1-chloro-4-(4-chlorophenyl)benzene. This high-purity chemical is synthesized for use in advanced research and industrial applications, offering exceptional stability and consistency. It is supplied as a crystalline solid with a purity level of ≥98%, ensuring reliable performance in sensitive experiments. Suitable for use as a reference standard, intermediate, or reagent in organic synthesis, environmental analysis, and material science. Proper handling and storage under inert conditions are recommended to maintain its integrity.

Properties

• CAS Number: 2050-68-2
• Complexity: 145
• IUPAC Name: 1-chloro-4-(4-chlorophenyl)benzene
• InChI: InChI=1S/C12H8Cl2/c13-11-5-1-9(2-6-11)10-3-7-12(14)8-4-10/h1-8H
• InChI Key: YTBRNEUEFCNVHC-UHFFFAOYSA-N
• Exact Mass: 222.0003056
• Molecular Formula: C12H8Cl2
• Molecular Weight: 223.09
• SMILES: C1=CC(=CC=C1C2=CC=C(C=C2)Cl)Cl
• Monoisotopic Mass: 222.0003056
• Synonyms: 4,4′-Dichlorobiphenyl, 2050-68-2, p,p-Dcbp, 1,1′-Biphenyl, 4,4′-dichloro-, 4,4′-DICHLORO-1,1′-BIPHENYL, p,p’-Dichlorobiphenyl, PCB 15, Biphenyl, 4,4′-dichloro-, UNII-DOF6S5DT2R, DOF6S5DT2R, NSC 1141, EINECS 218-095-4, CHEBI:34364, AI3-09066, NSC-1141, DTXSID0022515, 4-DCB cpd, DTXCID502515, 132567-22-7, 218-095-4, 1-chloro-4-(4-chlorophenyl)benzene, 4,4′-Dichloro-biphenyl, PCB No. 15, 4,4/’-Dichlorobiphenyl, MFCD00013641, Biphenyl,4′-dichloro-, Maybridge4_001889, 1, 4,4′-dichloro-, 4,4′-Dicb, 4,4 inverted exclamation marka-Dichlorobiphenyl, SCHEMBL28215, BIDD:ER0410, CHEMBL14295, 4-4′-DICHLOROBIPHENYL, SCHEMBL5584028, SCHEMBL15063601, NSC1141, PCB No 15, analytical standard, HMS1526F19, CCG-51668, STL280366, 1-chloro-4-(4-chlorophenyl)-benzene, AKOS015903435, NCGC00177150-01, AC-20957, FD151942, 4,4′-PCB, 98%, DB-045252, NS00004717, SR-01000640957-1, Q27116020, InChI=1/C12H8Cl2/c13-11-5-1-9(2-6-11)10-3-7-12(14)8-4-10/h1-8

Application

4,4′-Dichlorobiphenyl is widely utilized as a reference standard in environmental testing for polychlorinated biphenyl (PCB) analysis. It serves as a key intermediate in the synthesis of specialized polymers and advanced organic materials. Researchers also employ it in toxicology studies to investigate the effects of chlorinated aromatic compounds.

Safety and Hazards

GHS Hazard Statements

• H373 (92.9%): May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
• H400 (92.9%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]
• H410 (92.9%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]

Precautionary Statements

• P260, P273, P319, P391, and P501

Hazard Classes and Categories

• STOT RE 2 (92.9%)
• Aquatic Acute 1 (92.9%)
• Aquatic Chronic 1 (92.9%)

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