Description

2,2',3,4,4',6,6'-Heptachlorobiphenyl is a specific, high-purity congener of polychlorinated biphenyls (PCBs). This compound is of significant importance as a certified reference material and analytical standard for environmental monitoring, toxicological research, and regulatory compliance testing. It is primarily required by analytical laboratories, research institutions, and environmental agencies involved in the precise quantification and study of persistent organic pollutants (POPs) in various matrices.

Application

• Certified Reference Standard for the calibration of analytical instruments (GC, GC-MS, HPLC) in environmental testing.
• Analytical Method Development and Validation for the detection and quantification of PCB congeners in complex samples.
• Toxicological and Ecotoxicological Research to study the environmental fate, bioaccumulation, and specific toxic effects of heptachlorinated biphenyls.
• Quality Control (QC) and Proficiency Testing in laboratories performing regulatory analysis for compliance with international standards (e.g., EPA, EU directives).
• Environmental Forensics and source tracking of PCB contamination in soil, sediment, water, and biological tissues.
• Manufacturing of Calibration Kits and spiking solutions for laboratory use.

Basic Information

Product Name	2,2',3,4,4',6,6'-Heptachlorobiphenyl
CAS No.	74472-48-3
Molecular Formula	C₁₂H₃Cl₇
Molecular Weight	395.32 g/mol
Synonyms	PCB 183; 2,2',3,4,4',6,6'-Heptachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,2',3,4,4',6,6'-heptachloro-; Heptachlorobiphenyl (IUPAC); BZ# 183; Congener 183; 2,2',3,4,4',6,6'-HeptaCB; Aroclor congener (reference standard).
EINECS	Contact for details

Quality Control

Every batch of our 2,2',3,4,4',6,6'-Heptachlorobiphenyl is manufactured and verified to meet the stringent requirements for high-purity reference materials. Quality is assured through advanced analytical techniques including GC-FID/ECD and GC-MS to confirm identity and purity. A comprehensive Certificate of Analysis (COA) is provided with each lot, detailing the exact congener purity, solvent content (if applicable), and analytical results. Our quality system supports compliance with relevant guidelines for reference material producers.

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 2-8°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 solid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0% (congener-specific)
Total PCBs (as congener)	≥ 99.0%
Solvent Content (GC)	≤ 0.5% (if applicable)

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