Description

1,2,3,4,6,7,8-Heptachlorodibenzofuran is a specific, high-purity congener of the polychlorinated dibenzofuran (PCDF) chemical class, identified by CAS NO 67652-39-5. 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 bodies, 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 high-resolution gas chromatography/mass spectrometry (HRGC/HRMS) systems in environmental analysis.
• Analytical Method Development & Validation for testing protocols aimed at detecting ultra-trace levels of dioxin-like compounds.
• Quality Control/Quality Assurance (QC/QA) in commercial and regulatory laboratories to ensure accuracy and precision in POPs testing.
• Toxicological & Ecotoxicological Research to study the environmental fate, bioaccumulation, and health effects of specific dioxin congeners.
• Regulatory Compliance Testing for monitoring emissions from industrial processes (e.g., waste incineration, metallurgical processes) as per international guidelines (e.g., US EPA, EU).
• Food & Feed Safety Analysis for the determination of contaminant levels to comply with maximum residue limits (MRLs) set by global food safety authorities.

Basic Information

Product Name	1,2,3,4,6,7,8-Heptachlorodibenzofuran
CAS No.	67652-39-5
Molecular Formula	C₁₂HCl₇O
Molecular Weight	425.29 g/mol
Synonyms	1,2,3,4,6,7,8-HeptaCDF; 1,2,3,4,6,7,8-HpCDF; Heptachlorodibenzofuran; NSC 89288; Dibenzofuran, 1,2,3,4,6,7,8-heptachloro-; PCDF congener 183 (IUPAC numbering scheme)
EINECS	Contact for details

Quality Control

Our high-purity analytical standards are produced and verified under strict quality management protocols. Each batch is characterized using state-of-the-art techniques including HRGC/HRMS to confirm identity and purity. A comprehensive Certificate of Analysis (COA) is supplied with each product, detailing batch-specific data on purity, concentration (if in solution), and analytical methods. Our quality system supports compliance with standards relevant to reference material producers.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store at -10 to -20°C. Allow the sealed vial to equilibrate to room temperature before opening to prevent moisture condensation. Store away from strong oxidizers.

Specification

Item	Specification
Appearance	White to off-white solid or neat crystalline material
Identification (IR / MS)	Conforms to reference spectrum
Purity (by GC)	≥ 98.0%
Purity (by HRGC/HRMS)	≥ 95.0%
Solvent (if applicable)	Nonane, Toluene, or as specified
Concentration (if in solution)	10 µg/mL, 50 µg/mL, or as specified (± 5%)

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