Description

2,3,3',4,4',5'-Hexachlorobiphenyl is a specific, high-purity congener of polychlorinated biphenyls (PCBs). This compound is of significant importance for research, analytical, and regulatory compliance applications due to its role as a reference standard. It is primarily needed by environmental testing laboratories, chemical manufacturers, and academic institutions engaged in toxicology studies, method development, and quality control for persistent organic pollutant (POP) analysis.

Application

• Analytical Reference Standard: Used as a certified reference material (CRM) for the calibration and validation of analytical instruments like GC-MS and HPLC in environmental testing.
• Environmental Monitoring: Essential for the accurate quantification and profiling of PCB congeners in soil, water, sediment, and biota samples to assess contamination levels.
• Toxicological Research: Serves as a key compound in studies investigating the metabolic pathways, bioaccumulation, and specific health effects of dioxin-like PCBs.
• Regulatory Compliance Testing: Critical for laboratories performing analysis to ensure compliance with international regulations such as the Stockholm Convention on POPs, EPA methods, and REACH.
• Method Development & Validation: Used by chemists to develop, optimize, and confirm the accuracy and precision of new analytical methods for halogenated aromatic compounds.
• Quality Control & Assurance: Employed as an internal standard or spike in quality control protocols to guarantee the reliability and reproducibility of analytical data.

Basic Information

Product Name	2,3,3',4,4',5'-Hexachlorobiphenyl
CAS No.	69782-90-7
Molecular Formula	C₁₂H₄Cl₆
Molecular Weight	360.88 g/mol
Synonyms	PCB 156; 2,3,3',4,4',5'-Hexachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,3,3',4,4',5'-hexachloro-; BZ# 156; 3,3',4,4',5,6-Hexachlorobiphenyl; Hexachlorobiphenyl (PCB156); Congener 156; Aroclor congener 156
EINECS	Contact for details

Quality Control

Our high-purity 2,3,3',4,4',5'-Hexachlorobiphenyl is manufactured and handled under strict quality protocols to ensure batch-to-batch consistency and traceability. Each lot is rigorously analyzed using advanced chromatographic techniques to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and chromatographic data is provided with every shipment to support your research and compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). Keep the container sealed under an inert atmosphere if long-term storage is required to prevent potential degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Assay (GC)	≥ 97.0%
Melting Point	Contact for details

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