Description

1,2,3,7,8-Pentachlorodibenzo-p-Dioxin is a specific, high-purity congener of polychlorinated dibenzo-p-dioxins (PCDDs), a class of persistent organic pollutants. This compound is of critical importance as a certified reference material and analytical standard for environmental monitoring, toxicological research, and regulatory compliance testing. It is primarily required by analytical laboratories, research institutions, and regulatory bodies involved in the detection and quantification of dioxin contamination in environmental samples, food/feed, and industrial emissions.

Application

• Certified Reference Standard for the calibration of GC-MS and HRGC-HRMS systems in environmental analysis.
• Analytical Method Development and Validation for the precise detection of PCDD/Fs in complex matrices.
• Quality Control/Quality Assurance (QC/QA) in commercial and regulatory laboratories performing dioxin testing.
• Toxicological and Ecotoxicological Research to study the specific effects, fate, and transport of this congener.
• Regulatory Compliance Testing for monitoring emissions from industrial processes (e.g., waste incineration, metallurgy) as per EPA, EU, and other international standards.
• Food and Feed Safety Analysis to ensure levels are below maximum limits set by global food safety authorities.

Basic Information

Product Name	1,2,3,7,8-Pentachlorodibenzo-p-Dioxin
CAS No.	40321-76-4
Molecular Formula	C₁₂H₃Cl₅O₂
Molecular Weight	356.42 g/mol
Synonyms	1,2,3,7,8-PeCDD; Pentachlorodibenzo-p-dioxin (1,2,3,7,8-); 1,2,3,7,8-Pentachlorodibenzodioxin; 1,2,3,7,8-PentaCDD; PCDD 118 (obsolete numbering); 1,2,3,7,8-Pentachlorodibenzo[b,e][1,4]dioxin; 1,2,3,7,8-Pentachlorooxanthrene
EINECS	254-864-0

Quality Control

Our high-purity 1,2,3,7,8-Pentachlorodibenzo-p-Dioxin is manufactured and handled under strict quality protocols to ensure identity, purity, and stability for its use as a reference material. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, concentration (if in solution), and chromatographic profile. Our quality system supports compliance with relevant standards for analytical reagents and reference materials.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store at 2-8°C. Store in a cool, dry, and well-ventilated area dedicated for hazardous chemicals. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 98.0%
Purity (HPLC)	≥ 98.0%
Related Substances (GC-MS)	Total other PCDD/Fs ≤ 1.0%
Solubility	Soluble in toluene, dichloromethane, DMSO

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