Description

3,4',5-Trichlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a well-studied class of synthetic organic chemicals. This compound is primarily utilized in research and analytical chemistry as a critical reference standard for environmental monitoring and toxicological studies. Industries and laboratories involved in environmental testing, regulatory compliance, and chemical research require this high-purity material for accurate calibration and method validation.

Application

• Environmental Analysis Reference Standard: Used for the calibration of analytical instruments (GC, GC-MS, HPLC) in the detection and quantification of PCBs in soil, water, and biological samples.
• Toxicological Research: Serves as a precise congener-specific material for studying the biochemical pathways, metabolic fate, and health effects of PCBs.
• Regulatory Compliance and Method Development: Essential for developing, validating, and ensuring the accuracy of testing methods to comply with global environmental regulations (e.g., EPA, EU directives).
• Quality Control and Assurance: Acts as an internal standard or spike in laboratory QC procedures to verify analytical recovery and precision in complex matrices.
• Chemical Synthesis Intermediate: Can be used as a building block or precursor in specialized organic synthesis for creating derivatives for further study.
• Educational and Forensic Standard: Provides a definitive compound for academic instruction and forensic analysis related to persistent organic pollutants (POPs).

Basic Information

Product Name	3,4',5-Trichlorobiphenyl
CAS No.	38444-88-1
Molecular Formula	C₁₂H₇Cl₃
Molecular Weight	257.54 g/mol
Synonyms	PCB 39; 3,4',5-Trichloro-1,1'-biphenyl; 1,1'-Biphenyl, 3,4',5-trichloro-; 3,4',5-Trichlorodiphenyl; 2,5,4'-Trichlorobiphenyl; BZ No. 39; Aroclor congener (PCB 39)
EINECS	Contact for details

Quality Control

Our 3,4',5-Trichlorobiphenyl is manufactured and handled under strict quality protocols to ensure identity, purity, and consistency for critical analytical applications. Each batch is rigorously tested using chromatographic and spectroscopic methods. A comprehensive Certificate of Analysis (COA) detailing purity, identity confirmation, and impurity profiles is provided to support your research and compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from heat and incompatible materials.

Specification

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

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