Description

2,3,3',4',5,5',6-Heptachlorobiphenyl CAS NO 69782-91-8 is a specific, high-purity congener of polychlorinated biphenyls (PCBs), a class of synthetic organic chemicals. This compound is of significant importance for analytical and research purposes, serving as a critical reference standard for environmental monitoring, toxicological studies, and regulatory compliance testing. It is primarily required by analytical laboratories, environmental testing facilities, and research institutions engaged in the identification and quantification of PCB residues in various matrices to assess contamination and ensure safety standards.

Application

• Environmental Analysis Reference Standard: Used as a certified reference material (CRM) for calibrating equipment and validating methods in the analysis of soil, water, and sediment samples for PCB contamination.
• Food and Feed Safety Testing: Serves as an analytical standard in laboratories monitoring for PCB residues in food products, animal feed, and edible oils to ensure compliance with global safety regulations.
• Toxicological and Biomedical Research: Employed in studies investigating the metabolism, environmental fate, and specific toxic effects of heptachlorinated biphenyl congeners.
• Quality Control and Method Development: Essential for the development, verification, and ongoing quality control of analytical techniques such as Gas Chromatography-Mass Spectrometry (GC-MS) and High-Resolution Mass Spectrometry (HRMS).
• Regulatory Compliance and Proficiency Testing: Used by testing laboratories to demonstrate competency and validate results for regulatory submissions related to persistent organic pollutants (POPs).
• Waste and Industrial Material Analysis: Applied in the characterization of PCB content in transformer oils, capacitors, and other industrial wastes for proper disposal classification.

Basic Information

Product Name	2,3,3',4',5,5',6-Heptachlorobiphenyl
CAS No.	69782-91-8
Molecular Formula	C₁₂H₃Cl₇
Molecular Weight	395.32 g/mol
Synonyms	PCB 191; 2,3,3',4',5,5',6-Heptachloro-1,1'-biphenyl; 1,1'-Biphenyl, 2,3,3',4',5,5',6-heptachloro-; Heptachlorobiphenyl (PCB 191); 2,3,3',4',5,5',6-HeptaCB; BZ# 191; Congener 191
EINECS	Contact for details

Quality Control

Our high-purity reference standards are manufactured and verified under strict quality management systems. Each batch of 2,3,3',4',5,5',6-Heptachlorobiphenyl is rigorously analyzed using advanced chromatographic and spectrometric techniques to ensure identity, purity, and stability. Certificates of Analysis (COA) are provided, detailing batch-specific results including purity assay and impurity profiles. We support compliance with relevant standards for reference materials, and our quality commitment ensures reliability for your critical analytical and research applications.

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 tightly sealed in a dry environment to maintain integrity.

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, toluene)

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