Description

2,3,4,5-Tetrachlorobiphenyl is a specific, high-purity congener of polychlorinated biphenyls (PCBs), a well-studied class of industrial chemicals. This compound is primarily valued as a critical analytical reference standard and research chemical for environmental monitoring, toxicological studies, and method development. It is essential for laboratories and research institutions focused on persistent organic pollutant (POP) analysis, regulatory compliance testing, and understanding the environmental fate and toxicology of halogenated aromatics.

Application

• Environmental Analysis Reference Standard: Primary use as a certified calibration standard for the quantification of PCB congeners in soil, water, sediment, and biota samples via GC-MS or GC-ECD.
• Toxicological Research: Used in scientific studies to investigate the specific biochemical pathways, metabolic products, and toxic effects (e.g., endocrine disruption, carcinogenicity) of tetrachlorinated biphenyl isomers.
• Method Development & Validation: Serves as a key component in developing, optimizing, and validating analytical methods for POP detection to meet EPA, EU, and other international regulatory guidelines.
• Quality Control & Assurance: Employed as an internal standard or spike recovery standard in analytical laboratories to ensure the accuracy and precision of PCB testing protocols.
• Forensic Environmental Chemistry: Aids in source identification and fingerprinting of PCB contamination in environmental forensic investigations.
• Educational & Teaching Tool: Used in university chemistry and environmental science departments for advanced laboratory instruction on chromatography and environmental contaminant analysis.

Basic Information

Item	Details
Product Name	2,3,4,5-Tetrachlorobiphenyl
CAS No.	33284-53-6
Molecular Formula	C₁₂H₆Cl₄
Molecular Weight	291.99 g/mol
Synonyms	PCB 61; 2,3,4,5-TCB; 1,2,3,4-Tetrachloro-5-phenylbenzene; 2,3,4,5-Tetrachloro-1,1'-biphenyl; Biphenyl, 2,3,4,5-tetrachloro-; NSC 89345; 2,3,4,5-Tetrachlorodiphenyl
EINECS	Contact for details

Quality Control

Every batch of our 2,3,4,5-Tetrachlorobiphenyl is produced and handled under strict quality protocols to ensure identity, purity, and stability. We provide comprehensive analytical data, including HPLC purity and GC-MS confirmation. A detailed Certificate of Analysis (COA) is supplied with each shipment, documenting batch-specific results. Our quality system is designed to support GLP-compliant research and regulatory analysis.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Identification (GC-MS)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Soluble in common organic solvents (e.g., acetone, hexane, methanol)

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