Description

2,2',3,5'-Tetrachlorobiphenyl CAS NO 41464-39-5 is a specific, high-purity congener of polychlorinated biphenyls (PCBs) essential for analytical and research applications. This compound serves as a critical certified reference material (CRM) and analytical standard for environmental monitoring, toxicology studies, and regulatory compliance testing. It is primarily required by analytical laboratories, environmental testing facilities, and research institutions engaged in the identification and quantification of PCB contaminants in various matrices.

Application

• Certified Reference Material (CRM) for the calibration of analytical instruments (GC, GC-MS, HPLC).
• Analytical Standard for the quantification and confirmation of PCB congeners in environmental samples (soil, water, sediment).
• Toxicological Research to study the specific effects, metabolism, and persistence of tetrachlorobiphenyl isomers.
• Method Development & Validation for laboratory procedures targeting PCB analysis in compliance with EPA, EU, and other international standards.
• Quality Control/Quality Assurance (QC/QA) programs in environmental monitoring and food safety testing laboratories.
• Educational & Forensic Analysis for training and specialized investigative work concerning persistent organic pollutants (POPs).

Basic Information

Product Name	2,2',3,5'-Tetrachlorobiphenyl
CAS No.	41464-39-5
Molecular Formula	C₁₂H₆Cl₄
Molecular Weight	291.98 g/mol
Synonyms	PCB 44; 2,2',3,5'-Tetrachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,2',3,5'-tetrachloro-; 2,2',3,5'-Tetrachlorodiphenyl; Tetrachlorobiphenyl (IUPAC name: 1,1'-Biphenyl, 2,2',3,5'-tetrachloro-); PCB Congener 44; BZ# 44
EINECS	Contact for details

Quality Control

Every batch of our 2,2',3,5'-Tetrachlorobiphenyl is produced and handled under strict quality protocols to ensure identity, purity, and stability. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing assay purity, chromatographic profiles, and verification data. Our quality systems support compliance with relevant standards for high-purity reference materials. Certificates of Analysis (COA) are available upon request.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to structure
Assay (HPLC/GC)	≥ 98.0% (Area Percent)
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 1.0%; Total impurities ≤ 3.0%
Solubility	Soluble in common organic solvents (e.g., acetone, hexane, methanol)

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