Description

1,2,4,7,9-Pentachlorodibenzo-p-Dioxin is a specific, high-purity chlorinated dioxin congener, identified by CAS NO 82291-37-0. 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 persistent organic pollutants (POPs) to ensure accurate risk assessment and environmental safety.

Application

• Certified Reference Standard for the calibration of analytical instruments (GC-MS, HRGC/HRMS) in environmental testing.
• Toxicological Research to study the specific effects, bioaccumulation, and metabolism of dioxin congeners.
• Method Development & Validation for laboratories establishing or verifying analytical procedures for dioxin and furan analysis.
• Quality Control/Quality Assurance (QC/QA) in monitoring laboratories to ensure the accuracy and precision of routine dioxin analysis.
• Regulatory Compliance Testing for assessing samples against international standards set by the Stockholm Convention, EPA, and EU directives.
• Environmental Forensics and source apportionment studies to identify contamination origins.

Basic Information

Product Name	1,2,4,7,9-Pentachlorodibenzo-p-Dioxin
CAS No.	82291-37-0
Molecular Formula	C₁₂H₃Cl₅O₂
Molecular Weight	354.41 g/mol
Synonyms	1,2,4,7,9-PentaCDD; PentaCDD (1,2,4,7,9-); Dibenzodioxin, 1,2,4,7,9-pentachloro-; 1,2,4,7,9-Pentachlorodibenzodioxin; 1,2,4,7,9-PeCDD; PCDD 12479; 2,3,6,8,9-Pentachlorodibenzo-p-dioxin (alternative numbering)
EINECS	Contact for details

Quality Control

Every batch of 1,2,4,7,9-Pentachlorodibenzo-p-Dioxin is produced and handled under strict quality protocols to ensure identity, purity, and stability. Our products undergo rigorous quality testing, including chromatographic purity verification, to ensure compliance with the high standards required for analytical reference materials. A comprehensive Certificate of Analysis (COA) detailing batch-specific purity, analytical methods, and traceability is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store at -20°C or below. The container should be kept in a dedicated, well-ventilated freezer. Allow the sealed vial to equilibrate to room temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	White to off-white solid / Solution in nonane, toluene, or DMSO
Identification (IR / MS)	Conforms to reference spectrum
Purity (GC)	≥ 98.0% (area percent)
Purity (HPLC)	≥ 97.0% (area percent)
Concentration (if supplied as solution)	10 µg/mL, 50 µg/mL, or custom (in specified solvent)
Solvent (if supplied as solution)	Nonane, Toluene, or Dimethyl Sulfoxide (DMSO)
Homogeneity	Homogeneous solution or solid

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