Description

2,3',5-Trichlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a well-studied class of industrial chemicals. This high-purity reference standard is critical for analytical and research applications, enabling precise calibration, method validation, and environmental monitoring. It is primarily required by analytical laboratories, environmental testing facilities, and research institutions focused on persistent organic pollutant (POP) analysis, toxicology studies, and regulatory compliance.

Application

• Analytical Reference Standard: Used as a certified standard for the calibration of GC, GC-MS, and HPLC systems in environmental and food testing.
• Environmental Monitoring: Essential for the quantification and confirmation of PCB congeners in soil, water, sediment, and air samples to assess contamination levels.
• Toxicological Research: Serves as a pure substance for studying the specific biological effects, metabolic pathways, and toxicity profiles of individual PCB congeners.
• Method Development & Validation: A key component in developing, optimizing, and validating analytical methods for PCB detection and quantification according to EPA, EU, and other international standards.
• Quality Control & Assurance: Employed in laboratory QC protocols to ensure the accuracy and precision of analytical results for PCB mixtures.
• Regulatory Compliance Testing: Used to test materials and products for compliance with global regulations restricting PCBs, such as the Stockholm Convention, REACH, and TSCA.

Basic Information

Product Name	2,3',5-Trichlorobiphenyl
CAS No.	38444-81-4
Molecular Formula	C₁₂H₇Cl₃
Molecular Weight	257.54 g/mol
Synonyms	PCB 26; 2,3',5-Trichloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,3',5-trichloro-; 2,3',5-Trichlorodiphenyl; 2,3',5-TCB; Trichlorobiphenyl (2,3',5-); Polychlorinated Biphenyl Congener 26
EINECS	Contact for details

Quality Control

Our high-purity 2,3',5-Trichlorobiphenyl is manufactured and handled under strict quality protocols to ensure batch-to-batch consistency and reliability for critical analytical work. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity confirmation, and impurity profiles. We support compliance with relevant analytical standards and can provide materials suitable for use in accredited laboratory environments.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 98.0%
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.