Description

2,3'-Dichlorobiphenyl CAS NO 25569-80-6 is a specific chlorinated biphenyl congener of significant interest in analytical and environmental chemistry. This compound serves as a critical reference standard and research material for the study of polychlorinated biphenyl (PCB) behavior, fate, and remediation. It is primarily required by analytical laboratories, environmental testing facilities, and research institutions engaged in method development, calibration, and toxicological studies related to persistent organic pollutants (POPs).

Application

• Analytical Reference Standard: Primary use as a certified reference material (CRM) for the calibration of GC-MS, GC-ECD, and HPLC systems in environmental analysis.
• Environmental Fate Studies: Research on the degradation, transformation, and bioaccumulation of specific PCB congeners in soil, water, and biota.
• Toxicological Research: Investigation of the structure-activity relationships (SAR) and health effects of individual PCB compounds.
• Method Development & Validation: Used by testing laboratories to develop, optimize, and validate analytical methods for PCB detection and quantification according to EPA, ISO, or other international standards.
• Quality Control/Quality Assurance (QC/QA): Serves as a spike or internal standard in laboratory proficiency testing and quality control programs.
• Regulatory Compliance Testing: Essential for accurate measurement in compliance monitoring for regulations concerning PCBs in industrial effluents, waste, and consumer products.

Basic Information

Product Name	2,3'-Dichlorobiphenyl
CAS No.	25569-80-6
Molecular Formula	C12H8Cl2
Molecular Weight	223.10 g/mol
Synonyms	1,2'-Dichloro-1,1'-biphenyl; PCB 4; 2,3'-DCB; 2,3'-Dichloro-1,1'-biphenyl; Biphenyl, 2,3'-dichloro-; 2-(3-Chlorophenyl)chlorobenzene; 2,3'-Dichlorodiphenyl; 2,3'-PCB
EINECS	Contact for details

Quality Control

Our high-purity 2,3'-Dichlorobiphenyl is manufactured and handled under strict quality protocols to ensure batch-to-batch consistency and reliability for critical research and analysis. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity confirmation, and impurity profiles, typically verified by chromatographic and spectroscopic methods. We support compliance with relevant standards for reference materials.

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 under inert atmosphere (e.g., argon or nitrogen) is recommended to prevent potential oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC/GC)	≥ 98.0%
Related Substances (HPLC/GC)	Total impurities ≤ 2.0%
Melting Point	Contact for details
Solubility	Soluble in common organic solvents

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