Description

2,2',3,3',4,5,6,6'-Octachlorobiphenyl is a specific, highly chlorinated congener of polychlorinated biphenyls (PCBs). This compound is of significant importance for analytical and research purposes, particularly in environmental monitoring, toxicology studies, and as a critical reference standard for calibration. It is primarily needed by analytical laboratories, environmental testing facilities, and research institutions focused on persistent organic pollutant (POP) analysis, regulatory compliance, and method development.

Application

• Analytical Reference Standard: Primary use as a certified reference material (CRM) for the quantitative and qualitative analysis of PCBs in complex matrices.
• Environmental Monitoring: Calibration and quality control for testing soil, sediment, water, and air samples for PCB contamination to meet regulatory standards (e.g., EPA methods).
• Toxicological Research: Used in studies investigating the metabolism, environmental fate, and specific toxic effects (e.g., endocrine disruption, carcinogenicity) of higher-chlorinated PCB congeners.
• Food and Feed Safety Analysis: Employed as a standard in the detection and quantification of PCBs in food chains, ensuring compliance with safety regulations like EU maximum levels.
• Waste and Material Analysis: Essential for characterizing PCB content in industrial wastes, transformer oils, and building materials during remediation and disposal processes.
• Method Development and Validation: Serves as a key component in developing, optimizing, and validating new analytical techniques such as GC-MS/MS or HRGC/HRMS for POPs.
• Proficiency Testing: Used by providers of inter-laboratory comparison schemes to assess the accuracy and precision of laboratories performing PCB analysis.

Basic Information

Product Name	2,2',3,3',4,5,6,6'-Octachlorobiphenyl
CAS No.	52663-73-7
Molecular Formula	C₁₂H₂Cl₈
Molecular Weight	429.79 g/mol
Synonyms	PCB 204; 2,2',3,3',4,5,6,6'-OctaCB; Octachlorobiphenyl; 2,2',3,3',4,5,6,6'-Octachlorodiphenyl; Biphenyl, 2,2',3,3',4,5,6,6'-octachloro-; 2,3,3',4,5,5',6,6'-Octachlorobiphenyl (alternative numbering); Congener 204; OctaCB
EINECS	Contact for details

Quality Control

Our high-purity reference materials are produced and handled under strict quality management protocols. Each batch of 2,2',3,3',4,5,6,6'-Octachlorobiphenyl undergoes rigorous identity confirmation and purity assessment using advanced analytical techniques including GC-MS and HPLC. We provide comprehensive Certificates of Analysis (COA) with batch-specific data, traceable to primary standards. Our quality commitment ensures reliability for your most demanding analytical and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. For long-term storage, consider storage at -20°C under inert atmosphere to maximize stability. Keep the container in a dry, well-ventilated place. Observe all relevant local regulations for the storage of hazardous chemicals.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (GC-MS)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Purity (GC)	≥ 98.0%
Related Substances (HPLC/GC)	Total other PCB congeners ≤ 2.0%
Solubility	Soluble in common organic solvents (e.g., hexane, toluene)

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