Description

2,2',3,3'-Tetrachlorobiphenyl CAS NO 38444-93-8 is a specific, high-purity congener of polychlorinated biphenyls (PCBs), a class of synthetic organic chemicals. This compound is of significant importance for analytical and research purposes, serving as a critical reference standard for environmental monitoring, toxicological studies, and regulatory compliance testing. It is primarily needed by analytical laboratories, environmental testing facilities, and research institutions focused on persistent organic pollutant (POP) analysis, method development, and quality control.

Application

• Environmental Analysis Reference Standard: Used for the calibration and validation of analytical instruments (GC, GC-MS, HPLC) in the detection and quantification of PCB congeners in soil, water, sediment, and air samples.
• Toxicological Research: Serves as a precise congener for studying the specific biological effects, metabolic pathways, and toxicity profiles of tetrachlorinated biphenyls in laboratory models.
• Food and Feed Safety Testing: Acts as a critical standard in methods designed to monitor and ensure compliance with maximum residue limits (MRLs) for PCBs in the food chain.
• Method Development and Proficiency Testing: Essential for developing new analytical protocols and for use in inter-laboratory comparison studies to ensure accuracy and reproducibility in PCB analysis.
• Regulatory Compliance and Quality Assurance: Provides a traceable reference material for laboratories to demonstrate compliance with international regulations such as the Stockholm Convention on POPs, EPA methods, and other environmental directives.
• Waste and Material Analysis: Used in the characterization of PCB content in industrial wastes, transformer oils, and other materials for proper disposal and remediation efforts.

Basic Information

Product Name	2,2',3,3'-Tetrachlorobiphenyl
CAS No.	38444-93-8
Molecular Formula	C12H6Cl4
Molecular Weight	291.99 g/mol
Synonyms	PCB 40; 2,2',3,3'-Tetrachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,2',3,3'-tetrachloro-; 2,2',3,3'-Tetrachlorodiphenyl; Biphenyl, 2,2',3,3'-tetrachloro-; Tetrachlorobiphenyl (2,2',3,3'- isomer); PCB Congener 40; Aroclor Component
EINECS	Contact for details

Quality Control

Our 2,2',3,3'-Tetrachlorobiphenyl is manufactured and handled under strict quality management protocols to ensure identity, purity, and stability. Each batch is analyzed using validated chromatographic methods (GC-FID/GC-MS) to confirm congener-specific identity and high purity levels suitable for use as an analytical standard. Certificates of Analysis (COA) detailing batch-specific purity, chromatographic data, and storage recommendations are provided to guarantee traceability and support your quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). For long-term stability, storage at 2-8°C is recommended. Keep the container tightly sealed in a dry, well-ventilated area.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 98.0% (Area Percent)
Related Substances (GC)	Total other PCB congeners ≤ 2.0%
Solubility	Soluble in common organic solvents (e.g., hexane, toluene, acetone)

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