Description

2,2',4,4',5,5'-Hexachlorobiphenyl is a specific, high-purity congener of polychlorinated biphenyls (PCBs). This compound is of significant importance as a critical analytical reference standard and research material for environmental monitoring, toxicology studies, and regulatory compliance testing. It is primarily required by analytical laboratories, environmental testing facilities, and research institutions focused on persistent organic pollutant (POP) analysis and method development.

Application

• Analytical Reference Standard: Primary use as a certified standard for the calibration and quantification of PCBs in environmental samples (soil, water, sediment) and biological matrices via GC-MS or GC-ECD.
• Environmental Monitoring & Forensics: Essential for tracing PCB contamination sources, studying environmental fate and transport, and assessing remediation efforts.
• Toxicological Research: Used in scientific studies to investigate the specific biochemical pathways, metabolic products, and health effects (endocrine disruption, carcinogenicity) of individual PCB congeners.
• Method Development & Validation: Critical for developing, optimizing, and validating new analytical methods for POP detection in compliance with international protocols (EPA, EU).
• Quality Control/Quality Assurance (QC/QA): Serves as a spike or recovery standard in laboratory QC procedures to ensure accuracy and precision of analytical data.
• Regulatory Compliance Testing: Supports testing to ensure adherence to global regulations such as the Stockholm Convention on POPs, REACH, and TSCA.

Basic Information

Product Name	2,2',4,4',5,5'-Hexachlorobiphenyl
CAS No.	35065-27-1
Molecular Formula	C₁₂H₄Cl₆
Molecular Weight	360.88 g/mol
Synonyms	PCB 153; 2,2',4,4',5,5'-Hexachloro-1,1'-biphenyl; 2,2',4,4',5,5'-HexaCB; Biphenyl, 2,2',4,4',5,5'-hexachloro-; Hexachlorobiphenyl (isomer 153); 1,1'-Biphenyl, 2,2',4,4',5,5'-hexachloro-; IUPAC: 1,1'-Biphenyl, 2,2',4,4',5,5'-hexachloro-; CAS 35065-27-1
EINECS	Contact for details

Quality Control

Our high-purity 2,2',4,4',5,5'-Hexachlorobiphenyl is manufactured and handled under strict quality protocols to ensure identity, purity, and stability. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, congener-specific identity confirmation, and impurity profiles. We adhere to relevant guidelines for reference material production to support reliable and reproducible scientific data.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). This material is light-sensitive (store away from light) and should be kept away from strong acids and organic solvents. For long-term stability, consider storage under inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to reference spectrum
Identification (GC-MS)	Conforms to reference congener (PCB 153)
Purity (HPLC/GC)	≥98.0% (Area %)
Related Substances (HPLC/GC)	Total other PCB congeners <2.0%
Solubility	Soluble in common organic solvents (e.g., hexane, toluene, acetone)

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