Description

2,2',3,3',4,4',5,5'-Octachlorobiphenyl is a specific, fully chlorinated congener of the polychlorinated biphenyl (PCB) family, identified by the CAS registry number 35694-08-7. This compound is of significant importance for environmental analysis, toxicological research, and regulatory compliance testing due to its persistence and bioaccumulative potential. It is primarily required by analytical laboratories, environmental monitoring agencies, and research institutions for use as a certified reference material (CRM) or analytical standard.

Application

• Certified Reference Material (CRM): Serves as a high-purity standard for the calibration of analytical instruments in gas chromatography (GC) and mass spectrometry (MS).
• Environmental Analysis: Used for the quantitative and qualitative analysis of PCB contamination in soil, water, sediment, and air samples to meet regulatory requirements.
• Toxicological & Ecotoxicological Studies: Employed in research to investigate the biological effects, metabolic pathways, and environmental fate of persistent organic pollutants (POPs).
• Food & Feed Safety Testing: Essential for monitoring and ensuring compliance with maximum residue levels (MRLs) for PCBs in the food chain.
• Quality Control & Method Validation: Acts as a critical component in internal quality control procedures and the validation of analytical methods according to ISO/IEC 17025 standards.
• Regulatory Compliance: Supports testing for global regulations such as the Stockholm Convention on POPs, EU directives, and US EPA methods.

Basic Information

Product Name	2,2',3,3',4,4',5,5'-Octachlorobiphenyl
CAS No.	35694-08-7
Molecular Formula	C₁₂H₂Cl₈
Molecular Weight	429.79 g/mol
Synonyms	PCB 194; 2,2',3,3',4,4',5,5'-Octachloro-1,1'-biphenyl; Octachlorobiphenyl; 1,1'-Biphenyl, 2,2',3,3',4,4',5,5'-octachloro-; Congener 194; Aroclor 1268 component; Kanechlor 600 component
EINECS	Contact for details

Quality Control

Our high-purity analytical standards are produced under strict quality management systems. Each batch undergoes comprehensive analysis using techniques such as GC-MS and HPLC to confirm identity and purity, ensuring traceability and reliability for critical applications. A Certificate of Analysis (COA) is provided with each product, detailing batch-specific results. We support compliance with relevant pharmacopeial and ISO guidelines for reference materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep the container tightly sealed in a well-ventilated area and away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Solubility	Soluble in organic solvents (e.g., hexane, toluene)

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