Description

2,3,3',4,4',5-Hexachlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a class of synthetic organic chemicals. This compound is of significant importance for environmental analysis, toxicological research, and regulatory compliance testing. It serves as a critical reference standard and analytical standard for laboratories monitoring persistent organic pollutants (POPs). Industries and research institutions requiring precise calibration for the detection and quantification of PCBs in various matrices rely on this high-purity material.

Application

• Environmental Analysis: Used as a certified reference material (CRM) for calibrating equipment in the analysis of soil, water, sediment, and air samples for PCB contamination.
• Food Safety Testing: Serves as a critical standard in the quantification of PCB residues in food products, fish, and animal feed to ensure regulatory compliance.
• Toxicological Research: Employed in scientific studies to investigate the specific toxicokinetics, metabolic pathways, and health effects of dioxin-like PCBs.
• Regulatory Compliance & Method Development: Essential for validating analytical methods (e.g., GC-MS, HRGC/HRMS) according to protocols from the EPA, EU, and other global regulatory bodies.
• Quality Control/Assurance: Used by manufacturers of reference materials and testing laboratories as an in-house standard for method accuracy and precision.
• Waste and Remediation Monitoring: Applied in the analysis of industrial waste, transformer oils, and sites undergoing environmental remediation for PCB levels.

Basic Information

Product Name	2,3,3',4,4',5-Hexachlorobiphenyl
CAS No.	38380-08-4
Molecular Formula	C12H4Cl6
Molecular Weight	360.88 g/mol
Synonyms	PCB 156; 2,3,3',4,4',5-Hexachlorobiphenyl; 2,3,3',4,4',5-HexaCB; 3,3',4,4',5,6-Hexachlorobiphenyl; BZ# 156; PCB-156; NSC 89345; PCB Congener 156; UNII-6U5Q6S8C1H
EINECS	253-904-6

Quality Control

Our high-purity 2,3,3',4,4',5-Hexachlorobiphenyl is produced and handled under strict quality management protocols. Each batch undergoes rigorous analytical testing, including gas chromatography (GC) and mass spectrometry (MS), to confirm identity and purity. We provide comprehensive Certificates of Analysis (COA) with detailed chromatographic data, ensuring traceability and compliance with relevant standards for reference materials. Our quality system supports the needs of ISO/IEC 17025 accredited laboratories.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). For long-term stability, storage at 2-8°C is recommended. Keep the container securely sealed in a well-ventilated area.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0% (area %)
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Solubility	Soluble in common organic solvents (e.g., toluene, hexane)
Water Content (KF)	< 0.5%
Residue on Ignition	< 0.1%

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