Description

2,2',3,3',4,4',5,5',6-Nonachlorobiphenyl is a highly chlorinated congener of the polychlorinated biphenyl (PCB) family, identified by CAS NO 40186-72-9. This compound is of significant importance as a critical reference standard and analytical standard for environmental monitoring, toxicological research, and regulatory compliance testing. It is primarily needed by analytical laboratories, environmental testing facilities, and research institutions focused on persistent organic pollutant (POP) analysis, legacy contamination studies, and method development.

Application

• Environmental Analysis Reference Standard: Used for the calibration and quantification of PCBs in soil, sediment, water, and biota samples via GC-MS or GC-ECD.
• Toxicological Research: Serves as a specific congener for studying the bioaccumulation, metabolic pathways, and chronic toxicity of highly chlorinated PCBs.
• Food and Feed Safety Testing: Employed as an analytical standard to monitor and ensure compliance with maximum residue limits (MRLs) for PCBs in the food chain.
• Waste and Remediation Analysis: Critical for characterizing PCB profiles in industrial waste, transformer oils, and at contaminated sites undergoing remediation.
• Method Development and Validation: Used by laboratories to develop, optimize, and validate analytical methods for congener-specific PCB analysis.
• Quality Control/Quality Assurance (QC/QA): Acts as a spike or internal standard to assess the accuracy and precision of analytical procedures in accredited labs.
• Regulatory Compliance: Essential for testing to meet global regulations such as the Stockholm Convention on POPs, EPA methods, and EU directives.

Basic Information

Product Name	2,2',3,3',4,4',5,5',6-Nonachlorobiphenyl
CAS No.	40186-72-9
Molecular Formula	C₁₂HCl₉
Molecular Weight	464.13 g/mol
Synonyms	PCB 206; 2,2',3,3',4,4',5,5',6-NonaCB; Nonachlorobiphenyl; 2,2',3,3',4,4',5,5',6-Nonachlorodiphenyl; 2,2',3,3',4,4',5,5',6-NonaCB; Biphenyl, 2,2',3,3',4,4',5,5',6-nonachloro-; NSC 89345
EINECS	Contact for details

Quality Control

Our high-purity analytical standards are produced and handled under strict quality-controlled conditions to ensure batch-to-batch consistency and reliability for critical research and compliance work. Each batch is characterized using advanced analytical techniques to confirm identity and purity. Certificates of Analysis (COA) detailing lot-specific purity, chromatographic data, and storage recommendations are provided and available upon request.

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, storage at 2-8°C is recommended. Keep the container tightly sealed in a dry and well-ventilated area.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Related Substances (GC)	Total other PCBs ≤ 2.0%

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