Description

2,2',3,5,6'-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 analytical reference standard for environmental monitoring, toxicological research, and regulatory compliance testing. It is essential for laboratories and research institutions focused on persistent organic pollutant (POP) analysis, method development, and quality control programs.

Application

• Environmental Analysis Reference Standard: Calibration and quantification in the analysis of PCBs in soil, water, sediment, and biota samples.
• Toxicological and Metabolic Research: Used in studies investigating the fate, transport, and biological effects of specific PCB congeners.
• Method Development and Validation: Serves as a key component for developing and validating analytical methods using GC-MS, GC-ECD, or HPLC.
• Quality Assurance/Quality Control (QA/QC): Employed as an internal or external standard to ensure accuracy and precision in laboratory testing for POPs.
• Regulatory Compliance Testing: Essential for laboratories performing testing to comply with international regulations concerning PCBs (e.g., Stockholm Convention, EPA methods).
• Certified Reference Material (CRM) Production: Used in the manufacturing of certified reference materials for instrument calibration and proficiency testing.

Basic Information

Product Name	2,2',3,5,6'-Pentachlorobiphenyl
CAS No.	73575-55-0
Molecular Formula	C₁₂H₅Cl₅
Molecular Weight	326.43 g/mol
Synonyms	PCB 95; 2,2',3,5,6-Pentachlorobiphenyl; 2,2',3,5,6'-Pentachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,2',3,5,6'-pentachloro-; BZ# 95; Congener 95; Aroclor congener
EINECS	Contact for details

Quality Control

Our high-purity reference standards are manufactured and verified under strict quality management systems. Each batch is characterized using advanced analytical techniques to ensure precise identity and purity, critical for reliable scientific data. Comprehensive Certificates of Analysis (COA) are provided, detailing the results from tests including identification, assay, and impurity profiling. We support compliance with relevant pharmacopeial and ISO 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 securely sealed in a well-ventilated area.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Individual unspecified impurity	≤ 0.5%
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.