Description

2,3',4,4',5-Pentachlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a well-studied class of synthetic organic chemicals. This high-purity reference standard is critical for analytical research, environmental monitoring, and regulatory compliance testing. It is primarily utilized by analytical laboratories, environmental agencies, and research institutions involved in the detection and quantification of persistent organic pollutants (POPs).

Application

• Analytical Reference Standard: Used as a certified reference material (CRM) for the calibration of GC-MS, GC-ECD, and HPLC systems in environmental and food safety testing.
• Environmental Analysis: Essential for the accurate quantification of PCB congeners in soil, sediment, water, and air samples to assess contamination levels.
• Toxicological Research: Serves as a precise standard in studies investigating the metabolism, bioaccumulation, and specific toxic effects of individual PCB congeners.
• Method Development & Validation: Critical for developing, optimizing, and validating analytical methods according to EPA, ISO, and other international standards.
• Quality Control/Quality Assurance (QC/QA): Employed in laboratory proficiency testing and as an internal standard to ensure the accuracy and precision of analytical data.
• Regulatory Compliance Testing: Used to verify compliance with global regulations (e.g., Stockholm Convention, EU directives) limiting PCB levels in various matrices.

Basic Information

Product Name	2,3',4,4',5-Pentachlorobiphenyl
CAS No.	446254-80-4
Molecular Formula	C12H5Cl5
Molecular Weight	326.43 g/mol
Synonyms	PCB 118; 2,3',4,4',5-Pentachloro-1,1'-biphenyl; 2,3,4,4',5-Pentachlorobiphenyl (alternate numbering); 3,4,4',5-Tetrachloro-2-biphenylyl chloride; BZ# 118; Congener 118; 1,1'-Biphenyl, 2,3',4,4',5-pentachloro-
EINECS	Contact for details

Quality Control

Our high-purity 2,3',4,4',5-Pentachlorobiphenyl is manufactured and handled under strict quality protocols to ensure identity, purity, and stability. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing results from advanced chromatographic and spectroscopic analyses. We ensure traceability and compliance with relevant guidelines for reference materials.

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, inert atmosphere to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to structure
Identification (GC/MS)	Conforms to reference
Purity (HPLC/GC)	≥98.0% (Area %)
Related Substances (HPLC)	Total impurities ≤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.