Description

Trichlorobiphenyl CAS NO 25323-68-6 is a specific chlorinated derivative of biphenyl, belonging to the polychlorinated biphenyl (PCB) family. This compound is of significant interest for industrial research and development, particularly in the study of legacy environmental contaminants and material science. It serves as a critical reference standard and intermediate for specialized chemical synthesis. Key industries that utilize this material include environmental testing laboratories, advanced material developers, and analytical research facilities focused on persistent organic pollutants (POPs).

Application

• Environmental Reference Standard: Used as an analytical standard in gas chromatography (GC) and mass spectrometry (MS) for the detection and quantification of PCB congeners in environmental samples (soil, water, biota).
• Chemical Research Intermediate: Serves as a key synthetic building block in specialized organic chemistry research for developing novel compounds.
• Material Science Studies: Investigated for its properties in dielectric fluids, plasticizers, and other industrial material applications for historical and comparative analysis.
• Toxicological & Regulatory Research: Employed in studies assessing the environmental fate, bioaccumulation, and toxicology of chlorinated aromatic compounds to support regulatory compliance and risk assessment.
• Calibration & Method Development: Essential for calibrating analytical instruments and developing/validating testing methods in accredited laboratories.

Basic Information

Product Name	Trichlorobiphenyl
CAS No.	25323-68-6
Molecular Formula	C12H7Cl3
Molecular Weight	257.54 g/mol
Synonyms	PCB 28; 2,4,4'-Trichlorobiphenyl; 2,4,4'-Trichloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,4,4'-trichloro-; Trichlorodiphenyl; Aroclor 1242 (component); Kanechlor 300 (component); Phenochlor DP3 (component)
EINECS	246-815-7

Quality Control

Our Trichlorobiphenyl is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and reliability for research purposes. Each lot is analyzed using advanced chromatographic techniques to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing purity, congener profile, and analytical methods (e.g., GC-MS, HPLC) is provided with every shipment to support your research and compliance documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents. For long-term storage under an inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (GC-MS)	Conforms to reference standard
Purity (GC-FID/GC-MS)	≥ 98.0% (Total PCB congener)
Congener Specificity (PCB 28)	≥ 95.0% of total PCB content
Solvent (if applicable)	Isooctane, Hexane, or Toluene
Concentration (if in solution)	10 µg/mL to 100 mg/mL (customizable)

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