Description

2,3,4-Trichlorobiphenyl is a specific polychlorinated biphenyl (PCB) congener with defined chlorination at the 2, 3, and 4 positions of one phenyl ring. This compound is of significant interest in environmental analysis, research, and regulatory compliance due to its role as a reference standard and marker for PCB contamination studies. It serves as a critical material for laboratories and industries involved in analytical chemistry, environmental monitoring, and the development of remediation technologies. The product is supplied with a high level of purity to ensure reliable and reproducible results in sensitive applications.

Application

• Environmental Reference Standard: Primary use as an analytical standard for the calibration of equipment (GC, GC-MS, HPLC) to detect and quantify PCB levels in environmental samples like soil, water, and biota.
• Toxicological Research: Used in scientific studies to investigate the environmental fate, metabolic pathways, and specific toxicological effects of individual PCB congeners.
• Method Development & Validation: Essential for developing, optimizing, and validating new analytical methods for persistent organic pollutant (POP) analysis in compliance with global regulations.
• Quality Control/Assurance: Serves as an internal standard or spike in laboratory QC/QA protocols to ensure accuracy and precision in PCB analysis for commercial testing services.
• Regulatory Compliance Testing: Employed by industrial and environmental laboratories to test materials and waste streams for compliance with international regulations concerning PCBs (e.g., Stockholm Convention, EPA methods).
• Educational & Forensic Analysis: Used in academic settings for teaching advanced analytical techniques and in forensic investigations to identify sources of pollution.

Basic Information

Item	Details
Product Name	2,3,4-Trichlorobiphenyl
CAS No.	55702-46-0
Molecular Formula	C₁₂H₇Cl₃
Molecular Weight	257.54 g/mol
Synonyms	PCB 21; 1,2,3-Trichloro-4-phenylbenzene; 2,3,4-Trichloro-1,1'-biphenyl; 2,3,4-Trichlorodiphenyl; 2,3,4-Trichlorobiphenyl; 2,3,4-TCB; Biphenyl, 2,3,4-trichloro-; NSC 89345
EINECS	Contact for details

Quality Control

Our 2,3,4-Trichlorobiphenyl is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and high purity, essential for its use as a reference material. Each batch is analyzed using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing purity, identity confirmation, and impurity profiles is provided to guarantee it meets the stringent requirements for research and analytical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at controlled room temperature (typically 15-25°C). Keep away from heat and incompatible materials. For long-term storage under inert atmosphere, please contact us for specific recommendations.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 98.0%
Related Substances (GC)	Total other PCBs ≤ 2.0%
Melting Point	Contact for details

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