Description

1,2,3,4-Tetrachlorodibenzo-p-Dioxin CAS NO 30746-58-8 is a specific, high-purity chlorinated dioxin congener used primarily as a critical analytical standard and reference material. Its precise characterization is essential for environmental monitoring, toxicological research, and regulatory compliance testing. This compound is vital for laboratories and research institutions focused on dioxin analysis, environmental forensics, and the development of detection methodologies.

Application

• Analytical Reference Standard: Primary use as a certified standard for the calibration of GC-MS and HRGC/HRMS systems in environmental and food testing laboratories.
• Environmental Monitoring: Used in the quantification and profiling of dioxin and furan congeners in soil, sediment, water, and air samples to assess contamination levels.
• Toxicological Research: Serves as a precise congener in studies investigating the structure-activity relationships, metabolic pathways, and health effects of polychlorinated dibenzo-p-dioxins (PCDDs).
• Method Development & Validation: Critical for developing, optimizing, and validating analytical methods for dioxin detection to meet stringent international standards (e.g., US EPA Method 1613, EU regulations).
• Quality Control & Assurance: Employed in internal quality control programs and proficiency testing to ensure the accuracy and reliability of analytical data.
• Regulatory Compliance Testing: Essential for testing industrial emissions, waste incineration outputs, and consumer products to ensure compliance with global dioxin emission and contamination limits.

Basic Information

Product Name	1,2,3,4-Tetrachlorodibenzo-p-Dioxin
CAS No.	30746-58-8
Molecular Formula	C₁₂H₄Cl₄O₂
Molecular Weight	321.97 g/mol
Synonyms	1,2,3,4-TCDD; Tetrachlorodibenzo-p-dioxin (1,2,3,4-); 1,2,3,4-Tetrachlorodibenzo[b,e][1,4]dioxin; 1,2,3,4-Tetrachlorodioxin; PCDD 1234; 1,2,3,4-Tetrachlorodibenzodioxin; NSC 174546
EINECS	Contact for details

Quality Control

Every batch of 1,2,3,4-Tetrachlorodibenzo-p-Dioxin is produced and handled under strict quality management 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 lot-specific purity, analytical methods, and traceability is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (typically 15-25°C). For long-term stability, storage at -20°C is recommended. The container should be kept in a well-ventilated area and handled with appropriate personal protective equipment due to the compound's toxicity.

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.