Description

1,2,3,6,7,8,9-Heptachlorodibenzofuran is a specific, high-purity chlorinated dibenzofuran congener, essential for analytical and research applications requiring precise chemical standards. This compound serves as a critical reference material for the accurate identification and quantification of polychlorinated dibenzofurans (PCDFs) in complex environmental and biological matrices. It is primarily utilized by analytical laboratories, environmental testing facilities, and research institutions focused on persistent organic pollutant (POP) analysis, dioxin monitoring, and toxicological studies.

Application

• Analytical Reference Standard: Primary use as a certified reference material (CRM) for calibrating GC-MS and HRGC-HRMS systems in dioxin analysis.
• Environmental Monitoring: Calibration and quality control for testing soil, sediment, water, and air samples for PCDF contamination.
• Food and Feed Safety Analysis: Used in laboratories to ensure compliance with strict regulatory limits for dioxins and dioxin-like PCBs in the food chain.
• Toxicological Research: Serves as a pure congener for studying the specific toxicokinetics, metabolism, and health effects of heptachlorinated dibenzofurans.
• Waste and Emission Testing: Critical for analyzing industrial waste, incineration fly ash, and stack emissions to monitor and control POP releases.
• Method Development and Validation: Employed by chemists to develop, optimize, and validate new analytical methods for halogenated aromatic compounds.
• Quality Assurance/Quality Control (QA/QC): Used as a spike or internal standard to assess the accuracy and precision of analytical procedures in accredited labs.
• Regulatory Compliance and Proficiency Testing: Essential for laboratories participating in inter-laboratory comparison studies and demonstrating competence for regulatory purposes (e.g., EPA, EU).

Basic Information

Item	Details
Product Name	1,2,3,6,7,8,9-Heptachlorodibenzofuran
CAS No.	55673-89-7
Molecular Formula	C₁₂HCl₇O
Molecular Weight	444.21 g/mol
Synonyms	1,2,3,6,7,8,9-HeptaCDF; 1,2,3,6,7,8,9-Heptachlorodibenzofuran; Heptachlorodibenzofuran (1,2,3,6,7,8,9-); PCDF-189 (congener number); Polychlorinated dibenzofuran (Hepta-CDF); Dibenzofuran, 1,2,3,6,7,8,9-heptachloro-; 1,2,3,6,7,8,9-HpCDF
EINECS	Contact for details

Quality Control

Our 1,2,3,6,7,8,9-Heptachlorodibenzofuran is manufactured and handled under strict quality protocols to ensure the integrity and purity required for reference standard applications. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, congener-specific identity confirmation, and chromatographic profile. Our quality systems support compliance with relevant guidelines for reference materials, and we ensure traceability and stability data are maintained. Certificates of Analysis (COA) are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at recommended temperatures (typically -20°C to -10°C for long-term stability of standard solutions). The pure solid should be stored in a desiccator under inert atmosphere if possible. Keep away from strong acids and organic solvents. Always refer to the specific Safety Data Sheet (SDS) for detailed handling and storage instructions.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR / NMR)	Conforms to structure
Purity (HPLC/GC)	≥ 98.0% (area percent)
Congener Specificity	≥ 99.0% (by GC-MS)
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.