Description

2,2',3,3',5,5',6-Heptachlorobiphenyl is a specific, high-purity congener of polychlorinated biphenyls (PCBs), a well-studied class of synthetic organic chemicals. This compound is of significant importance for analytical and research purposes, serving as a critical reference standard for environmental monitoring, toxicological studies, and regulatory compliance testing. It is primarily needed by analytical laboratories, environmental testing facilities, and research institutions focused on persistent organic pollutant (POP) analysis, method development, and quality control.

Application

• Analytical Reference Standard: Primary use as a certified reference material (CRM) for the calibration of analytical instruments like GC-MS and HPLC.
• Environmental Analysis: Quantification and confirmation of PCB congeners in soil, water, sediment, and air samples for environmental impact assessments.
• Food and Feed Safety Testing: Used in methods to detect and quantify PCB residues to ensure compliance with international food safety regulations.
• Toxicological Research: Serves as a precise congener standard in studies investigating the biochemical pathways, metabolism, and health effects of PCBs.
• Method Development and Validation: Essential for developing, optimizing, and validating new analytical protocols for PCB congener-specific analysis.
• Quality Assurance/Quality Control (QA/QC): Used in laboratory proficiency testing and as an internal standard to ensure the accuracy and precision of analytical data.
• Regulatory Compliance: Supports testing mandated by regulations such as the Stockholm Convention on POPs, EPA methods, and EU directives.
• Waste and Material Analysis: Assists in characterizing PCB content in industrial wastes, transformer oils, and other materials for proper disposal classification.

Basic Information

Product Name	2,2',3,3',5,5',6-Heptachlorobiphenyl
CAS No.	52663-67-9
Molecular Formula	C₁₂H₃Cl₇
Molecular Weight	395.32 g/mol
Synonyms	PCB 174; 2,2',3,3',5,5',6-Heptachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,2',3,3',5,5',6-heptachloro-; Heptachlorobiphenyl (PCB 174); 2,2',3,3',5,5',6-Heptachlorodiphenyl; BZ# 174; Congener 174
EINECS	Contact for details

Quality Control

Our high-purity reference standards are produced and verified under strict quality management protocols. Each batch undergoes comprehensive analysis using techniques including GC-FID, GC-MS, and HPLC to confirm identity and purity. A detailed Certificate of Analysis (COA) is provided, listing batch-specific data on purity, impurities, and analytical methods. We ensure traceability and compliance with relevant guidelines for reference materials.

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). This compound is light-sensitive (store away from light) and should be handled with appropriate precautions in a well-ventilated area. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to reference spectrum
Identification (GC-MS)	Conforms to reference retention time and mass spectrum
Purity (GC-FID)	≥ 98.0%
Related Substances (GC)	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.