Description

2,2',3,4,4',5,6,6'-Octachlorobiphenyl is a specific, highly chlorinated congener of polychlorinated biphenyls (PCBs). This compound is of significant interest in analytical chemistry and environmental science as a reference standard for the identification and quantification of PCB residues. It is primarily required by analytical laboratories, environmental testing facilities, and research institutions engaged in contaminant analysis, regulatory compliance monitoring, and toxicological studies.

Application

• Analytical Reference Standard: Primary use as a certified reference material (CRM) for calibrating analytical instruments like GC-MS and HPLC.
• Environmental Monitoring: Quantification of PCB congeners in soil, water, sediment, and air samples to assess pollution levels and compliance with environmental regulations (e.g., EPA methods).
• Food and Feed Safety Analysis: Detection and measurement of PCB contaminants in agricultural products, seafood, and animal feed to ensure food safety standards.
• Toxicological Research: Used in scientific studies to investigate the environmental fate, metabolic pathways, and health effects of specific PCB congeners.
• Quality Control and Method Development: Serves as a critical component in the development, validation, and routine quality control of analytical methods for halogenated organic compounds.
• Industrial Hygiene and Occupational Safety: Calibration standard for monitoring workplace exposure to PCBs in relevant industrial settings.

Basic Information

Product Name	2,2',3,4,4',5,6,6'-Octachlorobiphenyl
CAS No.	74472-52-9
Molecular Formula	C₁₂H₂Cl₈
Molecular Weight	429.77 g/mol
Synonyms	PCB 204; 2,2',3,4,4',5,6,6'-OctaCB; Octachlorobiphenyl; 2,2',3,4,4',5,6,6'-Octachlorodiphenyl; Biphenyl, 2,2',3,4,4',5,6,6'-octachloro-; 1,1'-Biphenyl, 2,2',3,4,4',5,6,6'-octachloro-; Congener 204; IUPAC Name: 1,2,3,4,5,6,2',4'-Octachlorobiphenyl
EINECS	Contact for details

Quality Control

Every batch of our high-purity 2,2',3,4,4',5,6,6'-Octachlorobiphenyl is rigorously characterized to ensure identity, purity, and stability for use as an analytical standard. Our quality assurance process includes multiple orthogonal analytical techniques. Certificates of Analysis (COA) are provided, detailing batch-specific results for purity, chromatographic profile, and spectroscopic identification to support GLP/GMP-compliant laboratory work.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C (refrigerated) for long-term stability. Allow the sealed container to reach ambient temperature before opening to prevent moisture condensation. Store away from strong oxidizers and incompatible materials.

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% (Area %)
Related Substances (HPLC)	Total other PCBs ≤ 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.