Description

3,3',4,5'-Tetrachlorobiphenyl is a specific, high-purity congener of polychlorinated biphenyls (PCBs) used primarily as a critical reference standard and analytical reagent. This compound matters for researchers and quality control laboratories requiring precise quantification and identification of PCB contaminants in environmental and biological matrices. It is essential for organizations involved in environmental monitoring, food safety testing, and toxicological research, where accurate calibration is non-negotiable for regulatory compliance and scientific integrity.

Application

• Environmental Analysis Reference Standard: Used as a certified reference material (CRM) for the calibration of GC-MS and HPLC systems in the analysis of soil, water, and sediment samples for PCB contamination.
• Food and Feed Safety Testing: Serves as a critical calibrant in laboratories testing for persistent organic pollutant (POP) residues in food products, animal feed, and edible oils to ensure compliance with international safety standards.
• Toxicological and Biomedical Research: Employed in studies investigating the metabolism, distribution, and health effects of specific PCB congeners, providing a pure substance for dosing and analytical comparison.
• Waste and Industrial Material Analysis: Essential for identifying and quantifying PCB congeners in waste electrical equipment, transformers, and other industrial materials as part of regulatory disposal and recycling protocols.
• Method Development and Validation: Used by analytical chemists to develop, optimize, and validate new chromatographic or spectroscopic methods for the separation and detection of halogenated aromatic compounds.
• Quality Assurance/Quality Control (QA/QC): Acts as a system suitability check and internal standard in commercial testing laboratories to verify the accuracy and precision of their analytical procedures.

Basic Information

Product Name	3,3',4,5'-Tetrachlorobiphenyl
CAS No.	41464-48-6
Molecular Formula	C12H6Cl4
Molecular Weight	291.99 g/mol
Synonyms	PCB 65; 3,3',4,5-Tetrachlorobiphenyl; 1,1'-Biphenyl, 3,3',4,5-tetrachloro-; 2,3,4,5-Tetrachlorobiphenyl; 3,3',4,5-TCB; Biphenyl, 3,3',4,5-tetrachloro-; Tetrachlorobiphenyl (3,3',4,5'- isomer); Congener 65
EINECS	Contact for details

Quality Control

Every batch of 3,3',4,5'-Tetrachlorobiphenyl is produced and handled under strict quality management protocols to ensure identity, purity, and stability. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request, providing detailed chromatographic purity data, typically confirming a purity of ≥98% by GC-FID/GC-MS.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). For long-term stability, consider storage under inert atmosphere at -20°C. Keep the container tightly sealed in a dry environment to prevent any potential moisture uptake or contamination.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Melting Point	Contact for details

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