Description

2,2',3,3',4,4',5,6,6'-Nonachlorobiphenyl is a specific, highly chlorinated congener of polychlorinated biphenyls (PCBs). This compound is of significant importance for research, analytical, and regulatory purposes, particularly in environmental monitoring and toxicology studies. It is primarily needed by analytical laboratories, environmental testing facilities, and chemical manufacturers engaged in the development of reference standards or involved in legacy pollutant analysis and remediation.

Application

• Analytical Reference Standard: Used as a certified reference material (CRM) for the calibration of instruments and validation of analytical methods in gas chromatography (GC) and mass spectrometry (MS).
• Environmental Analysis: Critical for the accurate quantification and monitoring of PCB congeners in soil, water, sediment, and biota samples to assess contamination levels and compliance with environmental regulations.
• Toxicological Research: Serves as a precise congener in studies investigating the metabolism, persistence, and specific health effects of highly chlorinated PCBs.
• Method Development & Validation: Employed by testing laboratories to develop, optimize, and confirm the accuracy and precision of PCB congener-specific analytical protocols.
• Quality Control/Quality Assurance (QC/QA): Used as an internal standard or spike in laboratory QC samples to ensure data integrity and traceability in analytical workflows.
• Regulatory Compliance Testing: Essential for testing products and materials to ensure they meet strict international restrictions on PCB content, such as those under the Stockholm Convention.

Basic Information

Product Name	2,2',3,3',4,4',5,6,6'-Nonachlorobiphenyl
CAS No.	52663-79-3
Molecular Formula	C₁₂HCl₉
Molecular Weight	464.21 g/mol
Synonyms	PCB 208; 2,2',3,3',4,4',5,6,6'-Nonachlorobiphenyl; Nonachlorobiphenyl (congener 208); 2,2',3,3',4,4',5,6,6'-Nonachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,2',3,3',4,4',5,6,6'-nonachloro-; Aroclor component (trace congener); Polychlorinated Biphenyl 208
EINECS	Contact for details

Quality Control

Our high-purity 2,2',3,3',4,4',5,6,6'-Nonachlorobiphenyl is produced and handled under strict quality management protocols. Each batch is rigorously analyzed using advanced chromatographic and spectroscopic techniques to confirm identity and purity. A comprehensive Certificate of Analysis (COA) is provided, detailing assay results, impurity profiles, and lot-specific data to ensure traceability and compliance with your research or analytical requirements.

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 heat and incompatible materials. For long-term storage under inert atmosphere, please contact us for specific recommendations.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0% (area percent)
Purity (HPLC)	≥ 97.0%
Related Substances (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.