Description

2,2',4,6,6'-Pentachlorobiphenyl is a specific congener of the polychlorinated biphenyl (PCB) family, identified by the CAS number 56558-16-8. This compound is of significant importance for analytical and research purposes, particularly in environmental monitoring and toxicology studies. It is primarily needed by analytical laboratories, environmental testing facilities, and research institutions for use as a reference standard in the calibration of equipment and the quantification of PCB contamination in various matrices.

Application

• Environmental Analysis Reference Standard: Used for the calibration of GC-MS, GC-ECD, and HPLC systems to detect and quantify PCB residues in soil, water, and sediment samples.
• Toxicological Research: Serves as a precise chemical standard in studies investigating the environmental fate, bioaccumulation, and toxic effects of specific PCB congeners.
• Method Development and Validation: Critical for developing, optimizing, and validating analytical methods to ensure accuracy, precision, and regulatory compliance in testing protocols.
• Quality Control/Quality Assurance (QC/QA): Employed as an internal or external standard in laboratory QC procedures to verify the performance of analytical runs and ensure data integrity.
• Regulatory Compliance Testing: Essential for laboratories performing testing to comply with environmental regulations (e.g., EPA, EU directives) concerning persistent organic pollutants (POPs).
• Food and Feed Safety Testing: Used in the analysis of PCB levels in food products, animal feed, and agricultural commodities to ensure safety standards are met.

Basic Information

Product Name	2,2',4,6,6'-Pentachlorobiphenyl
CAS No.	56558-16-8
Molecular Formula	C12H5Cl5
Molecular Weight	326.43 g/mol
Synonyms	PCB 104; 2,2',4,6,6'-Pentachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,2',4,6,6'-pentachloro-; 2,2',4,6,6'-Pentachlorodiphenyl; Pentachlorobiphenyl (2,2',4,6,6'-); BZ# 104; Congener 104
EINECS	Contact for details

Quality Control

Our high-purity analytical standards are produced and handled under strict quality management protocols. Each batch undergoes comprehensive analysis using advanced techniques such as GC-MS and HPLC to verify identity and purity. A detailed Certificate of Analysis (COA) is provided, which includes batch-specific data on purity, chromatographic profile, and confirmation of structure. 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, ideally at controlled room temperature (15-25°C). Keep the container sealed to prevent contamination and moisture uptake. For long-term stability, store under recommended conditions and avoid frequent temperature fluctuations.

Specification

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

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