Description

2,3,4,7,8-Pentachlorodibenzofuran is a specific, high-purity congener of the polychlorinated dibenzofuran (PCDF) chemical class, identified by CAS NO 57117-31-4. This compound is of critical importance as a certified reference material and analytical standard for environmental monitoring and toxicological research. It is primarily required by analytical laboratories, regulatory agencies, and research institutions engaged in the detection and quantification of persistent organic pollutants (POPs) like dioxins and furans in complex matrices.

Application

• Certified Reference Standard for the calibration of analytical instruments (GC-MS, HRGC/HRMS) in environmental testing.
• Analytical Standard for method development and validation in the quantification of dioxin-like compounds in soil, water, sediment, and biological samples.
• Toxicological Research to study the specific biological activity, metabolism, and health effects of individual PCDF congeners.
• Quality Control/Quality Assurance (QC/QA) in commercial and regulatory laboratories to ensure accuracy and precision in POPs analysis.
• Environmental Forensics and source identification in contamination site investigations.
• Compliance Testing for international treaties such as the Stockholm Convention on Persistent Organic Pollutants.

Basic Information

Product Name	2,3,4,7,8-Pentachlorodibenzofuran
CAS No.	57117-31-4
Molecular Formula	C₁₂H₃Cl₅O
Molecular Weight	340.40 g/mol
Synonyms	2,3,4,7,8-PeCDF; PCDF-118; 2,3,4,7,8-Pentachlorodibenzo[b,d]furan; Dibenzofuran, 2,3,4,7,8-pentachloro-; NSC 89292; 2,3,4,7,8-Pentachlorooxanthrene; 2,3,4,7,8-Pentachlorodibenzofurane
EINECS	Contact for details

Quality Control

Our high-purity 2,3,4,7,8-Pentachlorodibenzofuran is manufactured and handled under strict quality protocols to ensure batch-to-batch consistency and traceability. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity confirmation, and chromatographic profile. We support compliance with ISO/IEC 17025 and ISO Guide 34 requirements 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 (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 reference spectrum
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total other congeners ≤ 2.0%
Solubility	Soluble in toluene, dichloromethane, DMSO

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