Description

2,2',3,3',4,4',5,6-Octachlorobiphenyl CAS NO 52663-78-2 is a specific, highly chlorinated congener of polychlorinated biphenyls (PCBs), a class of synthetic organic chemicals. This compound is of significant interest for analytical reference standards and environmental research, serving as a critical benchmark for identification and quantification. It is primarily required by analytical laboratories, environmental testing facilities, and research institutions engaged in the study of persistent organic pollutants (POPs), toxicology, and regulatory compliance monitoring.

Application

• Analytical Reference Standard: Primary use as a certified reference material (CRM) for calibrating equipment like GC-MS and HPLC in environmental analysis.
• Environmental Monitoring: Used in the quantification and profiling of PCB congeners in soil, water, sediment, and air samples to assess contamination levels.
• Toxicological Research: Serves as a specific congener for studying the biochemical pathways, metabolic fate, and chronic health effects of PCBs.
• Method Development and Validation: Essential for developing, optimizing, and validating analytical methods for PCB detection and separation.
• Quality Assurance/Quality Control (QA/QC): Employed as an internal or external standard to ensure the accuracy and precision of analytical data in commercial and regulatory labs.
• Regulatory Compliance Testing: Used to test products and materials for compliance with international regulations restricting PCB content (e.g., Stockholm Convention, TSCA).
• Forensic Analysis: Aids in source identification and fingerprinting of PCB mixtures in environmental forensic investigations.
• Educational and Reference Material: Supplied to academic institutions for teaching advanced analytical chemistry and environmental science principles.

Basic Information

Product Name	2,2',3,3',4,4',5,6-Octachlorobiphenyl
CAS No.	52663-78-2
Molecular Formula	C₁₂H₂Cl₈
Molecular Weight	429.79 g/mol
Synonyms	PCB 198; 2,2',3,3',4,4',5,6-OctaCB; Octachlorobiphenyl; 2,2',3,3',4,4',5,6-Octachlorodiphenyl; Biphenyl, 2,2',3,3',4,4',5,6-octachloro-; 1,1'-Biphenyl, 2,2',3,3',4,4',5,6-octachloro-; NSC 417996; PCB No. 198
EINECS	Contact for details

Quality Control

Our high-purity reference materials are produced and handled under strict quality management protocols. Each batch undergoes comprehensive analysis using advanced techniques including GC-MS and HPLC to confirm identity and purity. We provide Certificates of Analysis (COA) detailing lot-specific data such as purity, chromatographic profile, and storage conditions. Our standards are suitable for use in ISO/IEC 17025 accredited laboratories and support compliance with global environmental monitoring standards.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C in a dedicated freezer. Allow the sealed vial to equilibrate to room temperature before opening to prevent moisture condensation. For long-term stability, store under inert atmosphere. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (GC-FID/GC-MS)	≥98.0% (Area %)
Related Substances (HPLC/GC)	Total other PCBs ≤2.0%
Solubility	Soluble in common organic solvents (e.g., hexane, toluene)
Water Content (KF)	≤0.5%

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