Description

2,2',3,4',5,5',6-Heptachlorobiphenyl is a specific, high-purity congener of polychlorinated biphenyls (PCBs), a well-studied class of industrial chemicals. This compound is of significant value as a certified reference material and analytical standard for environmental monitoring, toxicological research, and regulatory compliance testing. It is essential for laboratories and research institutions focused on persistent organic pollutant (POP) analysis, method development, and quality assurance programs.

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 matrices.
• Toxicological and Ecotoxicological Research to study the environmental fate, bioaccumulation, and specific toxic effects of heptachlorinated biphenyls.
• Quality Control (QC) and Quality Assurance (QA) in laboratories performing compliance testing for regulations like the Stockholm Convention on POPs.
• Environmental Forensics and Source Tracking to identify and apportion PCB contamination in soil, sediment, and water.
• Manufacturing of Calibration Kits and Spiking Solutions for laboratory proficiency testing and internal standards.

Basic Information

Product Name	2,2',3,4',5,5',6-Heptachlorobiphenyl
CAS No.	52663-68-0
Molecular Formula	C₁₂H₃Cl₇
Molecular Weight	395.32 g/mol
Synonyms	PCB 183; 2,2',3,4',5,5',6-Heptachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,2',3,4',5,5',6-heptachloro-; Heptachlorobiphenyl (IUPAC); BZ# 183; Congener 183; 2,2',3,4',5,5',6-HeptaCB; Aroclor congener 183
EINECS	258-103-8

Quality Control

Supplied as a high-purity certified reference material (CRM), each batch is characterized using advanced analytical techniques including GC-FID, GC-MS, and HPLC. Identity and purity are confirmed against primary standards. A comprehensive Certificate of Analysis (COA) is provided, detailing the certified purity, uncertainty, analytical methods, and traceability. Our quality system ensures compliance with ISO guide 34 for reference material producers.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C (refrigerated) for long-term stability. Allow the vial to equilibrate to room temperature before opening to prevent moisture condensation. Keep under inert atmosphere if specified.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or solution (as specified)
Identification (IR / NMR)	Conforms to structure
Purity (GC / HPLC)	≥98.0% (Certified Value with uncertainty)
Solvent (if supplied as solution)	Isooctane, Toluene, or Methanol (as specified)
Concentration (if supplied as solution)	10 µg/mL, 50 µg/mL, or Custom (as specified)
Water Content (Karl Fischer)	≤0.5% (for neat solid)

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