Description

2,2',3,3',4,4'-Hexachlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a class of synthetic organic chemicals. This compound is primarily utilized as a critical analytical reference standard for environmental monitoring, toxicological research, and regulatory compliance testing. It is essential for laboratories and research institutions involved in the analysis of persistent organic pollutants (POPs), food safety, and ecological risk assessment to ensure accurate calibration and quantification.

Application

• Environmental Analysis Reference Standard: Calibration and quantification in the GC/MS or HPLC analysis of PCBs in soil, water, sediment, and air samples for environmental monitoring programs.
• Toxicological and Biomedical Research: Used as a precise congener standard in studies investigating the metabolism, distribution, and chronic health effects of PCBs.
• Food and Feed Safety Testing: Serves as a critical calibrant in the detection and measurement of PCB residues in food products, animal feed, and edible oils to ensure regulatory compliance.
• Quality Control and Method Validation: Employed by testing laboratories and chemical manufacturers to validate analytical methods, ensure instrument performance, and maintain ISO/IEC 17025 accreditation.
• Regulatory Compliance and Proficiency Testing: Essential for laboratories performing testing mandated by regulations such as the Stockholm Convention, EPA methods, and EU directives.
• Forensic and Industrial Hygiene Analysis: Used in the identification and source attribution of PCB contamination in industrial sites and forensic investigations.

Basic Information

Product Name	2,2',3,3',4,4'-Hexachlorobiphenyl
CAS No.	38380-07-3
Molecular Formula	C₁₂H₄Cl₆
Molecular Weight	360.88 g/mol
Synonyms	PCB 128; 2,2',3,3',4,4'-HexaCB; Hexachlorobiphenyl (IUPAC); Biphenyl, 2,2',3,3',4,4'-hexachloro-; 2,3,3',4,4',5-Hexachlorobiphenyl (isomer); NSC 406914; Aroclor congener 128; Chlorinated biphenyl (hexa-)
EINECS	Contact for details

Quality Control

Every batch of our 2,2',3,3',4,4'-Hexachlorobiphenyl is manufactured and handled under strict quality protocols to ensure the highest standard of purity and consistency required for analytical applications. Our products undergo rigorous identity confirmation and purity analysis using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and chromatographic profile is provided with each shipment to support your quality system and regulatory documentation.

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). Keep the container tightly sealed under an inert atmosphere to prevent degradation and ensure long-term stability.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC/GC)	≥ 98.0% (Area Percent)
Assay	≥ 97.0% (by GC-FID/ECD)
Related Substances (HPLC)	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.