Description

1,4,7,8-Tetrachlorodibenzo[1,4]Dioxin is a specific chlorinated derivative of dibenzo-p-dioxin, a compound class of significant interest in environmental and analytical chemistry. This high-purity reference standard is critical for research, method development, and quality control in laboratories focused on persistent organic pollutant (POP) analysis. It is primarily utilized by environmental testing facilities, regulatory bodies, and academic institutions engaged in the study of dioxins and furans, where precise identification and quantification are paramount.

Application

• Analytical Reference Standard: Primary use as a certified standard for the calibration and validation of analytical instruments like High-Resolution Gas Chromatography/Mass Spectrometry (HRGC/HRMS).
• Environmental Monitoring: Essential for the accurate detection and quantification of polychlorinated dibenzo-p-dioxins (PCDDs) in soil, water, air, and biological samples to assess contamination levels.
• Toxicological Research: Serves as a specific congener for studying the structure-activity relationships, environmental fate, and toxicokinetics of chlorinated dioxins.
• Method Development: Used by laboratories to develop, optimize, and verify new analytical protocols for dioxin analysis in complex matrices.
• Quality Assurance/Quality Control (QA/QC): Employed as a spike or internal standard to ensure the accuracy, precision, and reliability of analytical data in compliance with protocols like EPA Method 1613.
• Regulatory Compliance Testing: Supports testing required by global regulations (e.g., Stockholm Convention, EU directives) governing POPs in industrial emissions, waste, and consumer products.

Basic Information

Product Name	1,4,7,8-Tetrachlorodibenzo[1,4]Dioxin
CAS No.	40581-94-0
Molecular Formula	C12H4Cl4O2
Molecular Weight	321.97 g/mol
Synonyms	1,4,7,8-TCDD; 1,4,7,8-Tetrachlorodibenzo-p-dioxin; Tetrachlorodibenzodioxin (1,4,7,8-); 1,4,7,8-Tetrachlorodibenzo[b,e][1,4]dioxin; NSC 174546; Dibenzo[b,e][1,4]dioxin, 1,4,7,8-tetrachloro-; 1,4,7,8-Tetrachlorodibenzodioxin
EINECS	Contact for details

Quality Control

Our high-purity analytical standards are produced and handled under strict quality-controlled conditions to ensure identity, purity, and stability. Each batch is rigorously characterized using advanced analytical techniques, including GC-MS and HPLC. A comprehensive Certificate of Analysis (COA) is provided, detailing purity, chromatographic data, and storage conditions. Our quality system supports compliance with relevant guidelines for reference materials.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C or as indicated on the label/COA. For long-term storage, keep desiccated at -20°C. Handle with appropriate precautions in a well-ventilated area, using personal protective equipment.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Solubility	Soluble in common organic solvents (e.g., toluene, DMSO)

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