Description

2,3',4,4',5-Pentachlorobiphenyl 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 standard in environmental testing and research. It is essential for laboratories and organizations involved in monitoring, regulatory compliance, and toxicological studies. Professionals in environmental science, analytical chemistry, and industrial hygiene rely on this high-purity material for precise calibration and method validation.

Application

• Environmental Analysis Reference Standard: Used as a certified reference material (CRM) for the calibration of analytical instruments like GC-MS and HPLC in the detection of PCBs in soil, water, and air samples.
• Toxicological and Ecotoxicological Research: Serves as a precise congener-specific standard in studies investigating the bioaccumulation, metabolic pathways, and chronic health effects of PCBs.
• Regulatory Compliance and Method Development: Essential for laboratories developing and validating analytical methods to meet stringent international regulations (e.g., EPA, EU directives) concerning persistent organic pollutants (POPs).
• Food and Feed Safety Testing: Employed in the accurate quantification of PCB contaminants in the food chain to ensure product safety and compliance with maximum residue limits (MRLs).
• Waste and Remediation Site Characterization: Acts as a key analytical standard for assessing PCB contamination levels at industrial sites and monitoring the effectiveness of remediation efforts.
• Quality Control and Proficiency Testing: Used by manufacturers and testing laboratories to prepare internal quality control samples and participate in inter-laboratory comparison programs.

Basic Information

Product Name	2,3',4,4',5-Pentachlorobiphenyl
CAS No.	31508-00-6
Molecular Formula	C12H5Cl5
Molecular Weight	326.43 g/mol
Synonyms	PCB 118; 2,3,4,4',5-Pentachlorobiphenyl (IUPAC); 2,3',4,4',5-PCB; 3,4,4',5-Tetrachloro-2-biphenylyl chloride; Biphenyl, 2,3',4,4',5-pentachloro-; NSC 178228; Pentachlorobiphenyl (mixed congeners may be implied); Aroclor congener 118
EINECS	Contact for details

Quality Control

Every batch of 2,3',4,4',5-Pentachlorobiphenyl is produced and handled under strict quality management protocols to ensure identity, purity, and stability. Our products undergo rigorous quality testing, including chromatographic purity analysis, to ensure compliance with the high standards required for analytical reference materials. A comprehensive Certificate of Analysis (COA) detailing batch-specific purity, analytical methods, and traceability is provided with each shipment.

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 -20°C is recommended. Keep the container securely sealed in a well-ventilated area and away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.