Description

2',3,4,5,6'-Pentachlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a class of synthetic organic chemicals characterized by their biphenyl structure with varying degrees of chlorination. This compound is primarily utilized as a critical reference standard and analytical reagent in environmental testing and research. It is essential for laboratories and industries involved in monitoring, regulatory compliance, and toxicological studies related to persistent organic pollutants (POPs).

Application

• Environmental Analysis Reference Standard: Used as a certified reference material (CRM) for the calibration of analytical instruments like GC-MS and HPLC in the quantification of PCB residues in soil, water, and biological samples.
• Toxicological and Ecotoxicological Research: Serves as a precise congener-specific standard in studies investigating the environmental fate, bioaccumulation, and toxic effects of PCBs.
• Regulatory Compliance Testing: Essential for laboratories performing analysis to comply with global regulations (e.g., Stockholm Convention, EPA methods) governing POPs and PCB contamination levels.
• Quality Control in Manufacturing: Used to verify the absence of specific PCB congeners in products or processes where they are prohibited contaminants.
• Method Development and Validation: A key component in developing, optimizing, and validating new analytical methods for the detection of halogenated aromatic compounds.
• Forensic and Environmental Forensics: Acts as a marker in source identification and apportionment studies to trace the origin of PCB contamination in the environment.

Basic Information

Item	Details
Product Name	2',3,4,5,6'-Pentachlorobiphenyl
CAS No.	74472-39-2
Molecular Formula	C₁₂H₅Cl₅
Molecular Weight	326.43 g/mol
Synonyms	PCB 120; 2,3,4,5,6-Pentachlorobiphenyl; 2',3,4,5,6-Pentachloro-1,1'-biphenyl; Pentachlorobiphenyl (IUPAC); 1,1'-Biphenyl, 2,3,4,5,6-pentachloro-; BZ# 120; Aroclor congener 120
EINECS	Contact for details

Quality Control

Our high-purity 2',3,4,5,6'-Pentachlorobiphenyl is manufactured and handled under strict quality protocols to ensure batch-to-batch consistency and reliability for sensitive analytical applications. Each lot is rigorously analyzed using advanced chromatographic and spectroscopic techniques to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and chromatographic profile is provided with every shipment, supporting GLP/GMP compliant research and regulatory submissions.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from strong acids and organic solvents. For long-term stability, consider storage under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0% (Area %)
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details
Solubility	Soluble in common organic solvents (e.g., acetone, hexane, toluene)

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