Description

2',3,4,4',5-Pentachlorobiphenyl is a specific congener of polychlorinated biphenyls (PCBs), a well-studied class of synthetic organic chemicals. This compound is primarily utilized as a critical reference standard and analytical standard in environmental and toxicological research. It is essential for laboratories and research institutions focused on the analysis, monitoring, and regulatory compliance of persistent organic pollutants (POPs).

Application

• Environmental Analysis Reference Standard: Used for the calibration and validation of analytical instruments (GC-MS, HPLC) in the detection and quantification of PCBs in soil, water, and sediment samples.
• Toxicological Research: Serves as a precise congener-specific material for studying the biochemical pathways, metabolic fate, and chronic toxicity effects of PCBs.
• Food Safety Testing: Employed as a calibration standard in methods to screen for PCB contamination in food products, animal feed, and edible oils.
• Regulatory Compliance & Method Development: Critical for laboratories developing and verifying test methods to comply with international regulations (e.g., Stockholm Convention, EPA methods).
• Quality Control/Quality Assurance (QC/QA): Used as an internal standard or spike material to ensure accuracy and precision in commercial testing laboratories.
• Industrial Hygiene Monitoring: Applied in the analysis of workplace air and surface samples in industries with potential historical PCB exposure risks.

Basic Information

Product Name	2',3,4,4',5-Pentachlorobiphenyl
CAS No.	65510-44-3
Molecular Formula	C₁₂H₅Cl₅
Molecular Weight	326.43 g/mol
Synonyms	PCB 118; 2,3',4,4',5-Pentachlorobiphenyl; 2,3,4,4',5-Pentachlorobiphenyl (IUPAC); 3,4,4',5-Tetrachloro-2-biphenylyl chloride; BZ# 118; PCB Congener 118; Aroclor 1254 Component; Polychlorinated Biphenyl 118
EINECS	265-815-0

Quality Control

Every batch of our 2',3,4,4',5-Pentachlorobiphenyl is produced and handled under strict quality protocols to ensure the highest purity and congener specificity required for analytical applications. Our products undergo rigorous quality testing, including chromatographic purity verification, to ensure compliance with industry standards for reference materials. Certificates of Analysis (COA) detailing lot-specific purity, identity confirmation, and traceability are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store at controlled room temperature (15-25°C) in a dry, well-ventilated area. For long-term stability, storage at 2-8°C is recommended. This material should be kept away from strong oxidizers.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or powder
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0% (area percent)
Related Substances (GC)	Total other PCB congeners ≤ 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.