Description

2,2',3,4'-Tetrachlorobiphenyl CAS NO 36559-22-5 is a specific congener of polychlorinated biphenyls (PCBs), a class of synthetic organic chemicals. This high-purity reference standard is critical for analytical research, environmental monitoring, and regulatory compliance testing. It is primarily utilized by analytical laboratories, environmental agencies, and research institutions involved in the detection and quantification of persistent organic pollutants.

Application

• Analytical Reference Standard: Used as a certified standard for the calibration of instruments (GC, GC-MS, HPLC) in the quantitative analysis of PCB mixtures (Aroclors) and congeners.
• Environmental Monitoring: Essential for testing soil, water, sediment, and biota samples to assess contamination levels and track the fate of PCBs in the environment.
• Toxicological Research: Serves as a pure congener in studies investigating the specific biological effects, metabolic pathways, and health impacts of individual PCB compounds.
• Method Development & Validation: Employed by laboratories to develop, optimize, and validate new analytical methods for PCB detection to meet stringent regulatory requirements.
• Quality Assurance/Quality Control (QA/QC): Used in proficiency testing and as a spike material for recovery studies to ensure the accuracy and precision of analytical data.
• Regulatory Compliance Testing: Supports testing mandated by regulations such as the Stockholm Convention on Persistent Organic Pollutants, EPA methods, and other international environmental directives.

Basic Information

Product Name	2,2',3,4'-Tetrachlorobiphenyl
CAS No.	36559-22-5
Molecular Formula	C₁₂H₆Cl₄
Molecular Weight	291.99 g/mol
Synonyms	PCB 47; 2,2',3,4'-Tetrachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,2',3,4'-tetrachloro-; 2,2',3,4'-Tetrachlorodiphenyl; BZ# 47; IUPAC Name: 1,2,3-Trichloro-4-(2,4-dichlorophenyl)benzene (alternative numbering); Tetrachlorobiphenyl (unspecified isomer)
EINECS	Contact for details

Quality Control

Every batch of our 2,2',3,4'-Tetrachlorobiphenyl is produced and handled under strict quality protocols to ensure identity, purity, and stability. Our products undergo rigorous quality testing, including chromatographic purity analysis, to ensure compliance with industry standards for reference materials. A comprehensive Certificate of Analysis (COA) detailing batch-specific results is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). For long-term stability, storage at 2-8°C is recommended. Keep the container sealed to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Soluble in common organic solvents (e.g., hexane, acetone, methanol)

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