Description

1,2,3,8,9-Pentachlorodibenzo-p-Dioxin is a specific, high-purity chlorinated dioxin congener identified by CAS NO 71925-18-3. This compound is of significant importance for research, analytical, and regulatory applications where precise chemical standards are required. It is primarily needed by analytical laboratories, environmental testing facilities, and research institutions focused on toxicology, environmental fate studies, and the development of detection methods for persistent organic pollutants (POPs).

Application

• Analytical Reference Standard: Serves as a critical certified reference material (CRM) for the calibration and validation of analytical instruments like GC-MS and HRGC/HRMS in dioxin analysis.
• Environmental Monitoring: Used as a standard for the quantification and confirmation of dioxin congeners in soil, water, sediment, and air samples to assess contamination levels.
• Toxicological Research: Employed in scientific studies to investigate the specific biological activity, metabolic pathways, and health effects of individual dioxin isomers.
• Food and Feed Safety Testing: Acts as a calibration standard in laboratories ensuring compliance with strict regulatory limits for dioxins in the food chain.
• Method Development and Proficiency Testing: Essential for developing new analytical protocols and for use in inter-laboratory comparison tests to ensure accuracy and reproducibility of results.
• Regulatory Compliance and Forensics: Supports regulatory agencies and forensic labs in source identification and enforcement actions related to dioxin contamination events.

Basic Information

Product Name	1,2,3,8,9-Pentachlorodibenzo-p-Dioxin
CAS No.	71925-18-3
Molecular Formula	C12H3Cl5O2
Molecular Weight	354.41 g/mol
Synonyms	1,2,3,8,9-PeCDD; Pentachlorodibenzo-p-dioxin (1,2,3,8,9-); 1,2,3,8,9-Pentachlorodibenzo[b,e][1,4]dioxin; 1,2,3,8,9-PentaCDD; Dibenzo-p-dioxin, 1,2,3,8,9-pentachloro-; PCDD 12389; 1,2,3,8,9-Pentachlorodibenzodioxin
EINECS	Contact for details

Quality Control

Our high-purity 1,2,3,8,9-Pentachlorodibenzo-p-Dioxin is manufactured and handled under strict quality assurance protocols to ensure identity, purity, and stability. Each batch is characterized using advanced analytical techniques including gas chromatography and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, congener-specific identity, and chromatographic data is provided to support your research and compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). For long-term stability, storage at -20°C is recommended. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (HPLC/GC-MS)	Conforms
Purity (by GC)	≥ 98.0%
Congener Specificity	≥ 99.0% (of total PCDDs)
Solubility	Soluble in toluene, dichloromethane, DMSO

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