Description

2,2',3,4,4',5,6'-Heptachlorobiphenyl CAS NO 60145-23-5 is a specific, high-purity congener of polychlorinated biphenyls (PCBs). This compound is of significant importance for analytical and research purposes, serving as a critical reference standard for environmental monitoring and toxicological studies. It is primarily needed by analytical laboratories, environmental testing facilities, and research institutions focused on persistent organic pollutant (POP) analysis, regulatory compliance, and method development.

Application

• Primary use as an analytical reference standard for the calibration of GC-MS, GC-ECD, and HPLC systems.
• Critical component in environmental monitoring programs for the quantification of PCB congeners in soil, water, sediment, and biota samples.
• Essential for toxicological and ecotoxicological research to study the biological effects, bioaccumulation, and fate of heptachlorinated biphenyls.
• Used in method development and validation for laboratories seeking ISO/IEC 17025 accreditation for POP testing.
• Preparation of certified reference materials (CRMs) and quality control/quality assurance (QC/QA) samples.
• Support for regulatory compliance testing related to the Stockholm Convention, EPA methods, and other international regulations on PCBs.

Basic Information

Product Name	2,2',3,4,4',5,6'-Heptachlorobiphenyl
CAS No.	60145-23-5
Molecular Formula	C₁₂H₃Cl₇
Molecular Weight	395.32 g/mol
Synonyms	PCB 183; 2,2',3,4,4',5,6-Heptachlorobiphenyl; Heptachlorobiphenyl (IUPAC); BZ# 183; Congener 183; 2,2',3,4,4',5,6'-PCB; Aroclor congener 183; 2,2',3,4,4',5,6-Heptachloro-1,1'-biphenyl
EINECS	Contact for details

Quality Control

Our high-purity PCB congeners, including 2,2',3,4,4',5,6'-Heptachlorobiphenyl, are produced and handled under strict quality protocols to ensure identity, purity, and stability. Each batch is rigorously analyzed using state-of-the-art chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) is provided, detailing purity, congener-specific identity confirmation, and solvent content. Our quality system supports traceability and compliance with standards relevant to reference material producers.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C in a dedicated, well-ventilated freezer. Allow the sealed vial to equilibrate to room temperature before opening to prevent moisture condensation. For long-term stability, store under inert atmosphere. Keep away from strong acids/bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white solid or crystalline powder
Identification (GC-MS, HPLC)	Conforms to reference spectrum
Purity (GC-FID/ECD)	≥ 98.0% (area percent)
Related Congeners (GC)	≤ 1.0% (total)
Solvent Content (Residual Solvents)	Meets ICH guidelines

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