Description

1,3,4,7,9-Pentachlorodibenzofuran is a specific, high-purity congener of the polychlorinated dibenzofuran (PCDF) chemical class, identified by CAS NO 70648-20-3. This compound is of critical importance as a certified reference material and analytical standard for environmental monitoring, toxicological research, and regulatory compliance testing. It is essential for laboratories and research institutions focused on the detection and quantification of persistent organic pollutants (POPs), particularly dioxins and furans, in various matrices.

Application

• Certified Reference Standard for the calibration of analytical instruments (GC-MS, HRGC/HRMS) in environmental testing laboratories.
• Analytical Research for method development and validation in the detection of polychlorinated dibenzofurans (PCDFs).
• Toxicological Studies to investigate the environmental fate, bioaccumulation, and health effects of dioxin-like compounds.
• Quality Control/Assurance in laboratories performing compliance testing for international regulations like the Stockholm Convention on POPs.
• Environmental Forensics for source identification and apportionment in contamination site investigations.
• Food and Feed Safety Analysis as a standard for monitoring contaminant levels to ensure public health protection.

Basic Information

Product Name	1,3,4,7,9-Pentachlorodibenzofuran
CAS No.	70648-20-3
Molecular Formula	C₁₂H₃Cl₅O
Molecular Weight	354.41 g/mol
Synonyms	1,3,4,7,9-PentaCDF; PCDF-13479; Dibenzofuran, 1,3,4,7,9-pentachloro-; 1,3,4,7,9-Pentachlorodibenzo[b,d]furan; NSC 89390; Pentachlorodibenzofuran (1,3,4,7,9- isomer); 70648-20-3; UNII-9Q6W171B6P
EINECS	Contact for details

Quality Control

Our high-purity 1,3,4,7,9-Pentachlorodibenzofuran is manufactured and handled under strict quality protocols to ensure identity, purity, and stability for critical analytical applications. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, chromatographic data, and spectroscopic confirmation. We support compliance with ISO/IEC 17025 and ISO Guide 34 standards for reference material producers.

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 -20°C is recommended. The container should be kept in a well-ventilated area and handled with appropriate personal protective equipment due to the toxic nature of dioxin-like compounds.

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 toluene, DMSO; slightly soluble in methanol

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