Description

2,3,3',6-Tetrachlorobiphenyl is a specific polychlorinated biphenyl (PCB) congener identified by CAS NO 74472-33-6. This compound is of significant interest in environmental analysis, toxicology research, and regulatory compliance testing due to its persistence and bioaccumulative potential. It serves as a critical reference standard and analytical tool for laboratories in the environmental monitoring, industrial hygiene, and chemical manufacturing sectors.

Application

• Environmental Analysis Reference Standard: Used as a certified standard for the calibration and quantification of PCB residues in soil, water, sediment, and biological samples via GC-MS or HPLC.
• Toxicological Research: Employed in scientific studies to investigate the metabolic pathways, environmental fate, and chronic health effects of specific PCB congeners.
• Method Development and Validation: Essential for developing, optimizing, and validating analytical methods in compliance with EPA, EU, and other international regulatory frameworks.
• Quality Control/Quality Assurance (QC/QA): Serves as an internal standard or spike recovery compound to ensure accuracy and precision in analytical laboratory workflows.
• Regulatory Compliance Testing: Used by industrial and commercial facilities to monitor effluent, waste streams, and workplace air for compliance with PCB regulations (e.g., TSCA, POPs Regulation).
• Forensic and Source Identification: Aids in chemical fingerprinting to identify the source or history of PCB contamination in environmental forensic investigations.

Basic Information

Product Name	2,3,3',6-Tetrachlorobiphenyl
CAS No.	74472-33-6
Molecular Formula	C12H6Cl4
Molecular Weight	291.99 g/mol
Synonyms	PCB 45; 2,3,3',6-Tetrachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,3,3',6-tetrachloro-; 3,3',4,6-Tetrachlorobiphenyl; Biphenyl, 2,3,3',6-tetrachloro-; Tetrachlorobiphenyl (mixed isomers reference); Aroclor component (reference)
EINECS	Contact for details

Quality Control

Our high-purity 2,3,3',6-Tetrachlorobiphenyl is manufactured and handled under strict quality protocols to ensure batch-to-batch consistency and reliability for critical analytical applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity confirmation, and impurity profiles, typically determined by GC-FID/GC-MS and HPLC. We support compliance with ISO 17034 reference material producer guidelines.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from strong acids and organic solvents. For long-term stability, consider storage under an inert atmosphere such as argon or nitrogen.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0% (area percentage)
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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