Description

2,3,3',4,4',5,5',6-Octachlorobiphenyl is a specific, highly chlorinated congener of polychlorinated biphenyls (PCBs). This compound is of significant importance as a high-purity analytical reference standard for environmental monitoring and toxicological research. It is primarily needed by analytical laboratories, regulatory agencies, and research institutions involved in the detection, quantification, and study of persistent organic pollutants (POPs) to ensure compliance with global environmental regulations.

Application

• Environmental Analysis Reference Standard: Used as a certified reference material (CRM) for the calibration and validation of analytical instruments like GC-MS and HPLC in testing soil, water, and sediment samples for PCB contamination.
• Toxicological and Ecotoxicological Research: Serves as a precise standard in studies investigating the bioaccumulation, metabolic pathways, and long-term toxic effects of specific PCB congeners on human health and ecosystems.
• Regulatory Compliance and Method Development: Essential for laboratories developing and verifying analytical methods to meet stringent international standards (e.g., EPA, EU) for POPs monitoring and reporting.
• Food and Feed Safety Testing: Employed as a calibration standard in the analysis of PCB residues in food products, animal feed, and edible oils to ensure safety and regulatory compliance.
• Waste and Remediation Analysis: Used to accurately identify and quantify this specific congener in industrial waste, transformer oils, and materials from remediation sites of historical PCB contamination.
• Quality Control/Quality Assurance (QC/QA): Acts as a critical component in inter-laboratory comparison studies and proficiency testing programs to ensure data accuracy and consistency across testing facilities.

Basic Information

Product Name	2,3,3',4,4',5,5',6-Octachlorobiphenyl
CAS No.	74472-53-0
Molecular Formula	C12H2Cl8
Molecular Weight	429.77 g/mol
Synonyms	PCB 205; 2,3,3',4,4',5,5',6-OctaCB; Octachlorobiphenyl; 2,3,3',4,4',5,5',6-Octachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,3,3',4,4',5,5',6-octachloro-; Congener 205; Aroclor congener 205 (Trace constituent)
EINECS	Contact for details

Quality Control

Every batch of our high-purity 2,3,3',4,4',5,5',6-Octachlorobiphenyl is manufactured and analyzed under strict quality management systems. The product undergoes rigorous identity confirmation and purity verification using advanced chromatographic and spectroscopic techniques (GC-MS, HPLC) to ensure it meets the exacting standards required for analytical reference materials. A comprehensive Certificate of Analysis (COA) detailing batch-specific purity, chromatographic data, and storage conditions is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. For long-term storage, keep the sealed vial or ampoule in a desiccator at the recommended temperature. Handle and store in accordance with all applicable laboratory safety regulations for hazardous chemicals.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or solution (as specified)
Identification (IR / MS)	Conforms to reference spectrum
Purity (HPLC / GC)	≥ 98.0% (Area %)
Assay (by GC-MS)	≥ 95.0% (w/w)
Solvent (for solutions)	As specified (e.g., Isooctane, Toluene, Nonane)
Concentration (for solutions)	As specified (e.g., 10 µg/mL, 50 µg/mL, 100 µg/mL)
Water Content (K.F. Titration)	< 0.5% (for neat solid)

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