Description

2,3,4'-Trichlorobiphenyl CAS NO 38444-85-8 is a specific congener of polychlorinated biphenyls (PCBs), a class of synthetic organic chemicals. This compound is primarily utilized as a critical reference standard and analytical reagent in environmental and regulatory testing. It is essential for laboratories and industries involved in monitoring, research, and compliance related to persistent organic pollutants (POPs).

Application

• Environmental Analysis Reference Standard: Primary use as a certified reference material (CRM) for calibrating analytical instruments like GC-MS and HPLC in pollutant detection.
• Regulatory Compliance Testing: Used to validate testing methods for PCBs in soil, water, sediment, and waste samples to meet EPA, EU, and other global regulations.
• Toxicological and Ecotoxicological Research: Serves as a precise chemical standard in studies investigating the fate, transport, and toxic effects of specific PCB congeners.
• Quality Control and Method Development: Essential for laboratories developing, verifying, and maintaining quality control protocols for PCB analysis.
• Forensic and Source Identification Studies: Used in chemical fingerprinting to identify sources and patterns of PCB contamination in the environment.
• Manufacturing of Specialized Chemical Intermediates: May be employed in controlled, small-scale synthesis for research into PCB degradation or derivative compounds.

Basic Information

Product Name	2,3,4'-Trichlorobiphenyl
CAS No.	38444-85-8
Molecular Formula	C₁₂H₇Cl₃
Molecular Weight	257.54 g/mol
Synonyms	PCB 33; 2,3,4'-Trichloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,3,4'-trichloro-; 2,3,4'-Trichlorodiphenyl; 2,3,4'-Trichlorobiphenyl (IUPAC); Trichlorobiphenyl (unspecified isomer); Aroclor component (historical reference)
EINECS	Contact for details

Quality Control

Our high-purity 2,3,4'-Trichlorobiphenyl is manufactured and handled under strict quality protocols to ensure batch-to-batch consistency and reliability for analytical applications. Each lot is characterized using advanced techniques including GC-FID/GC-MS and HPLC to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing purity, chromatographic data, and trace impurity profiles is provided with every shipment to support your quality system and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place, preferably at controlled room temperature (15-25°C). Keep the container sealed to prevent contamination and moisture uptake.

Specification

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

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