Description

2,2',3,4,4',5-Hexachlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a well-studied class of synthetic organic chemicals. This compound is of significant importance for analytical and research purposes, particularly in environmental monitoring, toxicology studies, and the development of reference standards. It is primarily needed by analytical laboratories, environmental testing facilities, and research institutions focused on persistent organic pollutant (POP) analysis, regulatory compliance, and method validation.

Application

• Analytical Reference Standard: Used as a certified reference material (CRM) for the calibration of analytical instruments like GC-MS and HPLC in environmental testing.
• Environmental Monitoring: Serves as a critical standard for the quantification and identification of PCB congeners in soil, water, sediment, and air samples to assess contamination levels.
• Toxicological Research: Employed in laboratory studies to investigate the specific biological effects, metabolic pathways, and toxicity profiles of individual PCB congeners.
• Method Development & Validation: Essential for developing, optimizing, and validating analytical methods to ensure accuracy, precision, and regulatory compliance for PCB analysis.
• Quality Control/Quality Assurance (QC/QA): Used as an internal standard or spike in laboratory QC procedures to verify the performance of analytical methods and ensure data reliability.
• Regulatory Compliance Testing: Supports testing mandated by regulations such as the Stockholm Convention on POPs, EPA methods, and other international environmental directives.

Basic Information

Product Name	2,2',3,4,4',5-Hexachlorobiphenyl
CAS No.	35694-06-5
Molecular Formula	C₁₂H₄Cl₆
Molecular Weight	360.88 g/mol
Synonyms	PCB 138; 2,2',3,4,4',5-Hexachlorobiphenyl; 2,2',3,4,4',5-HexaCB; Biphenyl, 2,2',3,4,4',5-hexachloro-; 2,3,4,2',4',5'-Hexachlorobiphenyl; Hexachlorobiphenyl (IUPAC name); Congener 138; Aroclor congener 138
EINECS	Contact for details

Quality Control

Our high-purity 2,2',3,4,4',5-Hexachlorobiphenyl is produced and handled under strict quality management protocols. Each batch is rigorously analyzed using advanced chromatographic and spectroscopic techniques to ensure identity, purity, and stability. A comprehensive Certificate of Analysis (COA) is provided, detailing assay purity, congener-specific identity confirmation, and impurity profiles. Our quality systems support compliance with relevant standards for reference materials.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C (refrigerated) or as indicated on the label or COA. For long-term storage, consider storage at -20°C under an inert atmosphere. Keep the container in a dry, well-ventilated place. Observe all local regulations for the storage of hazardous chemicals.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (HPLC/GC-MS)	Conforms to reference standard
Assay (Purity by GC)	≥ 98.0%
Related Substances (HPLC/GC)	Total other PCB congeners ≤ 2.0%

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