Description

1,2,3,4,7-Pentachlorodibenzo-p-Dioxin is a specific, high-purity congener of the polychlorinated dibenzo-p-dioxin (PCDD) family, identified by CAS NO 39227-61-7. This compound is of critical importance for analytical and research purposes, serving as a certified reference material for the calibration of instruments and the quantification of dioxin contamination in environmental and biological samples. It is primarily required by analytical laboratories, environmental testing facilities, and research institutions focused on toxicology, environmental monitoring, and regulatory compliance.

Application

• Certified Reference Standard (CRM): For the precise calibration of GC-MS and HRGC/HRMS systems in dioxin analysis.
• Environmental Analysis: Quantification and monitoring of PCDD/Fs in soil, sediment, water, and air samples to assess pollution levels.
• Food and Feed Safety Testing: Used as an analytical standard to ensure compliance with strict regulatory limits for dioxins in the food chain.
• Toxicological Research: Serves as a pure congener for studying the specific biological activity, metabolism, and health effects of dioxin isomers.
• Quality Assurance/Quality Control (QA/QC): Implementation in laboratory proficiency testing and internal quality control protocols.
• Waste and Emission Monitoring: Analysis of dioxin levels in industrial emissions, incinerator fly ash, and chemical waste.
• Method Development and Validation: Critical for developing, optimizing, and validating new analytical methods for persistent organic pollutants (POPs).

Basic Information

Item	Details
Product Name	1,2,3,4,7-Pentachlorodibenzo-p-Dioxin
CAS No.	39227-61-7
Molecular Formula	C₁₂H₃Cl₅O₂
Molecular Weight	356.41 g/mol
Synonyms	1,2,3,4,7-PeCDD; Pentachlorodibenzo-p-dioxin; 1,2,3,4,7-Pentachlorodioxin; PCDD 12347; Dibenzodioxin, 1,2,3,4,7-pentachloro-; 1,2,3,4,7-Pentachlorodibenzodioxin
EINECS	Contact for details

Quality Control

Our 1,2,3,4,7-Pentachlorodibenzo-p-Dioxin is produced and handled under strict quality management systems to ensure the highest standards of purity and traceability required for reference materials. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, congener-specific identity confirmation, and solvent content. We adhere to relevant guidelines for the production of reference standards to support ISO/IEC 17025 accredited laboratories and global regulatory compliance (e.g., US EPA, EU).

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below in a dedicated freezer. Allow the sealed vial to equilibrate to room temperature before opening to prevent moisture condensation. Store away from oxidizers and strong bases.

Specification

Item	Specification
Appearance	White to off-white solid or solution
Identification (IR / NMR)	Conforms to structure
Purity (HPLC/GC)	≥ 98.0% (by area)
Congener Specificity	≥ 99.0% (of total PCDDs)
Solvent (if applicable)	Nonane, Toluene, or DMSO (as specified)
Concentration (if solution)	10 µg/mL to 50 µg/mL ± 5% (Certified Value on COA)

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