Description

2,3,3',4',5-Pentachlorobiphenyl is a specific congener within the polychlorinated biphenyl (PCB) family, identified by CAS NO 70424-68-9. This compound is of significant interest for research, analytical, and regulatory compliance purposes due to its role as a reference standard in environmental monitoring. It is primarily required by analytical laboratories, environmental testing facilities, and research institutions engaged in the study of persistent organic pollutants (POPs).

Application

• Environmental Analysis Reference Standard: Used as a certified reference material (CRM) for the calibration and validation of analytical methods (e.g., GC-MS, GC-ECD) to detect and quantify PCBs in soil, water, sediment, and biota.
• Toxicological and Ecotoxicological Research: Serves as a pure congener for studying the specific biological effects, metabolic pathways, and environmental fate of individual PCB compounds.
• Regulatory Compliance Testing: Essential for laboratories performing testing to comply with international regulations (e.g., Stockholm Convention, EPA methods) governing PCB contamination levels.
• Method Development and Proficiency Testing: Employed in the development of new analytical protocols and as a component in inter-laboratory comparison studies to ensure data quality and accuracy.
• Food and Feed Safety Analysis: Used as a standard in the analysis of PCB residues in food chains to ensure compliance with maximum residue limits (MRLs).
• Industrial Hygiene Monitoring: Acts as a calibration standard for air and surface monitoring in settings where historical PCB contamination is a concern.

Basic Information

Product Name	2,3,3',4',5-Pentachlorobiphenyl
CAS No.	70424-68-9
Molecular Formula	C₁₂H₅Cl₅
Molecular Weight	326.43 g/mol
Synonyms	PCB 110; 2,3,3',4',5-Pentachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,3,3',4',5-pentachloro-; 2,3,4,3',5'-Pentachlorobiphenyl; BZ# 110; Aroclor congener 110; NSC 89345; Pentachlorobiphenyl (IUPAC name)
EINECS	Contact for details

Quality Control

Our high-purity reference materials undergo rigorous quality testing to ensure identity, purity, and stability. Each batch is characterized using advanced analytical techniques, including GC-MS and HPLC, to provide reliable and traceable data. Comprehensive Certificates of Analysis (COA) detailing lot-specific purity, analytical methods, and uncertainty are provided to support your quality assurance and accreditation requirements (e.g., ISO/IEC 17025).

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. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Related Substances (GC)	Total impurities ≤ 2.0%
Solubility	Soluble in common organic solvents (e.g., hexane, toluene)

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