Description

1,3,6,7,8-Pentachlorodibenzofuran is a specific, high-purity chlorinated dibenzofuran congener, identified by CAS NO 70648-21-4. This compound is of significant importance as a critical reference standard and analytical reagent for environmental monitoring and toxicological research. It is primarily required by analytical laboratories, research institutions, and regulatory bodies involved in the detection and quantification of persistent organic pollutants (POPs), particularly dioxins and furans, in complex matrices.

Application

• Environmental Analysis: Serves as a certified reference material (CRM) for the calibration of GC-MS and HRGC-HRMS systems in the analysis of soil, water, air, and sediment samples for dioxin-like compounds.
• Food and Feed Safety Testing: Used as an analytical standard to ensure compliance with stringent international regulations (e.g., EU, FDA) regarding dioxin and furan contamination levels in food chains and animal feed.
• Toxicological and Biomedical Research: Employed in studies investigating the mechanism of action, bioaccumulation, and health effects of polychlorinated dibenzofurans (PCDFs).
• Waste and Emission Monitoring: Essential for quantifying emissions from industrial processes such as waste incineration, metal smelting, and chemical manufacturing to meet environmental protection standards.
• Quality Assurance/Quality Control (QA/QC): Acts as a spike or internal standard in analytical procedures to validate methods, assess recovery rates, and ensure the accuracy and precision of test results.
• Regulatory Compliance and Proficiency Testing: Used by testing laboratories to demonstrate competency and adherence to ISO/IEC 17025 standards in inter-laboratory comparison studies.

Basic Information

Product Name	1,3,6,7,8-Pentachlorodibenzofuran
CAS No.	70648-21-4
Molecular Formula	C₁₂H₃Cl₅O
Molecular Weight	340.41 g/mol
Synonyms	1,3,6,7,8-PeCDF; Pentachlorodibenzofuran (1,3,6,7,8-); Dibenzofuran, 1,3,6,7,8-pentachloro-; NSC 89289; 70648-21-4 (CAS); PCDF congener 118 (IUPAC numbering scheme)
EINECS	Contact for details

Quality Control

Every batch of 1,3,6,7,8-Pentachlorodibenzofuran is manufactured and handled under strict quality management protocols. Our products undergo rigorous identity confirmation, purity analysis, and stability testing to ensure they meet the exacting requirements for use as analytical reference materials. A comprehensive Certificate of Analysis (COA), detailing lot-specific purity (typically ≥98% by GC), chromatographic data, and storage conditions, is provided with each shipment to support your traceability and compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). For long-term stability, storage at -20°C is recommended. The container should be kept in a well-ventilated area and handled with appropriate personal protective equipment to prevent exposure.

Specification

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

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