Description

2,2',3,4',5',6-Hexachlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a class of synthetic organic chemicals. This compound is primarily utilized as a critical reference standard and analytical tool in environmental and toxicological research. It is essential for laboratories and research institutions focused on legacy pollutant analysis, method development, and regulatory compliance testing. The precise chemical identity and high purity of this material are fundamental for accurate calibration and quantification in complex matrices.

Application

• Environmental Analysis Reference Standard: Used for the calibration of analytical instruments (GC, GC-MS, HPLC) in the detection and quantification of PCBs in soil, water, sediment, and biota samples.
• Toxicological Research: Serves as a pure congener for studying the specific biological effects, metabolic pathways, and persistence of PCBs in ecological and mammalian systems.
• Method Development and Validation: Acts as a key component in developing and verifying new analytical protocols for persistent organic pollutant (POP) analysis to meet international standards.
• Quality Control and Assurance: Employed as an internal or external standard in laboratory QC procedures to ensure the accuracy and precision of PCB testing results.
• Regulatory Compliance Testing: Used by testing facilities to benchmark against regulatory limits set by agencies such as the EPA, EU, and other global environmental bodies.
• Forensic and Source Identification Studies: Aids in chemical fingerprinting to trace the origin and distribution of PCB contamination in environmental forensic investigations.

Basic Information

Product Name	2,2',3,4',5',6-Hexachlorobiphenyl
CAS No.	38380-04-0
Molecular Formula	C₁₂H₄Cl₆
Molecular Weight	360.88 g/mol
Synonyms	PCB 138; 2,2',3,4,4',5'-Hexachlorobiphenyl (IUPAC numbering variant); 2,2',3,4',5',6-Hexachloro-1,1'-biphenyl; BZ# 138; Hexachlorobiphenyl; Polychlorinated Biphenyl 138; 1,1'-Biphenyl, 2,2',3,4',5',6-hexachloro-; Aroclor congener 138
EINECS	Contact for details

Quality Control

Our high-purity reference materials are produced and handled under strict quality-controlled conditions. Each batch undergoes comprehensive analysis using advanced chromatographic and spectroscopic techniques to confirm identity and purity. Certificates of Analysis (COA) are provided, detailing lot-specific results for purity, impurities, and verification against certified reference materials where applicable. Our quality system ensures traceability and consistency for research and compliance applications.

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). For long-term stability, storage at -20°C is recommended. Keep the container securely sealed in a well-ventilated area and away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR / NMR)	Conforms to structure
Purity (HPLC / GC)	≥ 98.0% (Area %)
Related Substances (HPLC)	Total impurities ≤ 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.