Description

2,3,7-Trichlorodibenzo-p-Dioxin is a specific chlorinated dioxin congener of significant interest in analytical and environmental chemistry. This compound serves as a critical reference standard for the precise identification and quantification of dioxin and furan contaminants in complex matrices. It is primarily required by environmental testing laboratories, regulatory agencies, and research institutions focused on persistent organic pollutant (POP) analysis, food safety, and industrial emissions monitoring.

Application

• Analytical Reference Standard: Primary use as a certified calibration standard and system suitability check for high-resolution gas chromatography/mass spectrometry (HRGC/HRMS) analysis.
• Environmental Monitoring: Calibration and quality control for testing soil, sediment, water, and air samples for dioxin contamination as per EPA Method 1613 and other international protocols.
• Food and Feed Safety Analysis: Essential for accurate measurement of dioxin levels in foodstuffs, animal feed, and edible oils to ensure compliance with strict EU and global regulatory limits.
• Toxicological Research: Used in scientific studies to investigate the specific toxicokinetics, metabolic pathways, and environmental fate of chlorinated dioxin congeners.
• Waste and Emission Testing: Critical for analyzing industrial waste, fly ash, and flue gas emissions from incinerators and chemical manufacturing facilities.
• Method Development and Validation: Serves as a key component in developing, optimizing, and validating new analytical methods for dioxin detection.
• Quality Assurance/Quality Control (QA/QC): Used as an internal standard or spike in laboratory proficiency testing and inter-laboratory comparison studies.

Basic Information

Product Name	2,3,7-Trichlorodibenzo-p-Dioxin
CAS No.	33857-28-2
Molecular Formula	C₁₂H₅Cl₃O₂
Molecular Weight	287.53 g/mol
Synonyms	2,3,7-Trichlorodibenzo[b,e][1,4]dioxin; 2,3,7-Trichlorodibenzo-1,4-dioxin; 2,3,7-Trichloro-p-dioxin; 2,3,7-TriCDD; Trichlorodibenzodioxin; NSC 174546; Dibenzo[b,e][1,4]dioxin, 2,3,7-trichloro-
EINECS	Contact for details

Quality Control

Every batch of 2,3,7-Trichlorodibenzo-p-Dioxin is manufactured and handled under strict quality systems to ensure the highest standard of purity and traceability required for analytical applications. Our products undergo rigorous identity confirmation and purity analysis using techniques such as GC-MS, NMR, and HPLC. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing batch-specific data including purity, chromatographic profile, and concentration for solution standards. We support compliance with ISO/IEC 17025 and GLP standards.

Storage

Preserve in a tightly closed container, protected from light. For optimal long-term stability, store the neat solid or prepared solutions at recommended temperatures (typically 2-8°C or as specified on the COA). Store away from strong oxidizers and in a dedicated, well-ventilated area for hazardous materials.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR / NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Purity (GC)	≥ 98.0%
Related Substances (HPLC/GC)	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.