Description

2,3,3',4,5,5'-Hexachlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a well-studied class of synthetic organic chemicals. This compound is of significant interest for environmental analysis, toxicological research, and regulatory compliance testing. It serves as a critical reference standard for laboratories and research institutions engaged in the identification and quantification of PCB contaminants. Professionals in environmental monitoring, analytical chemistry, and industrial hygiene rely on high-purity PCB congeners for method development and quality assurance.

Application

• Analytical Reference Standard: Primary use as a certified reference material (CRM) for calibrating analytical instruments like GC-MS and HPLC.
• Environmental Testing: Calibration and quantification of PCBs in soil, water, sediment, and air samples for environmental impact assessments.
• Toxicology & Health Studies: Research into the specific toxicokinetics, metabolic pathways, and health effects of individual PCB congeners.
• Food & Feed Safety Analysis: Used in methods to detect and measure PCB residues to ensure compliance with food safety regulations.
• Method Development & Validation: Essential for developing, validating, and verifying analytical procedures in accredited testing laboratories.
• Quality Control/Quality Assurance (QC/QA): Serves as a spike or control sample to ensure the accuracy and precision of analytical data.
• Regulatory Compliance: Supports testing mandated by regulations such as the Stockholm Convention on Persistent Organic Pollutants (POPs).

Basic Information

Product Name	2,3,3',4,5,5'-Hexachlorobiphenyl
CAS No.	39635-35-3
Molecular Formula	C₁₂H₄Cl₆
Molecular Weight	360.88 g/mol
Synonyms	PCB 163; 2,3,3',4,5,5'-Hexachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,3,3',4,5,5'-hexachloro-; BZ# 163; Congener 163; Hexachlorobiphenyl (isomer unspecified); Polychlorinated Biphenyl 163
EINECS	Contact for details

Quality Control

Our high-purity 2,3,3',4,5,5'-Hexachlorobiphenyl is manufactured and handled under strict quality protocols to ensure batch-to-batch consistency and reliability for critical analytical work. Each lot is characterized using advanced analytical techniques, including gas chromatography (GC) and mass spectrometry (MS). A comprehensive Certificate of Analysis (COA) detailing purity, identity confirmation, and trace solvent levels is provided with every shipment to support your ISO 17025 accreditation and data integrity requirements.

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). For long-term stability, storage at 2-8°C is recommended. Keep the container sealed to prevent moisture absorption and potential contamination.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0% (area percentage)
Related Substances (GC)	Total other PCBs ≤ 2.0%
Solvent Residue (GC)	Meets ICH guidelines
Water Content (KF)	≤ 0.5% w/w

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