Description

1,4,6,9-Tcdd CAS NO 40581-93-9 is a high-purity, specialized chlorinated dibenzo-p-dioxin compound. This chemical is critical for advanced research and analytical applications, serving as a key reference standard and intermediate. It is primarily utilized by analytical laboratories, environmental testing facilities, and research institutions focused on dioxin analysis, toxicology studies, and method development.

Application

• Analytical Reference Standard: Primary use as a certified reference material (CRM) for the calibration of GC-MS and HPLC systems in environmental and food safety testing.
• Environmental Analysis: Critical for the detection, quantification, and monitoring of polychlorinated dibenzo-p-dioxins (PCDDs) in soil, water, and air samples.
• Toxicological Research: Used in scientific studies to investigate the biological activity, metabolic pathways, and health impacts of specific dioxin congeners.
• Method Development & Validation: Essential for developing, optimizing, and validating new analytical protocols for dioxin and furan analysis in complex matrices.
• Quality Control/Quality Assurance (QC/QA): Employed in laboratory QC programs to ensure the accuracy and precision of analytical results for regulatory compliance.
• Chemical Synthesis Intermediate: Serves as a building block or precursor in the synthesis of other specialized chlorinated compounds for research purposes.

Basic Information

Product Name	1,4,6,9-Tcdd
CAS No.	40581-93-9
Molecular Formula	C12H4Cl4O2
Molecular Weight	321.97 g/mol
Synonyms	1,4,6,9-Tetrachlorodibenzo-p-dioxin; 1,4,6,9-Tetrachlorodibenzodioxin; 1,4,6,9-TCDD; 1,4,6,9-Tetrachlorodibenzo[b,e][1,4]dioxin; NSC 174546; 1,4,6,9-Tetrachlorooxanthrene; 40581-93-9
EINECS	Contact for details

Quality Control

Our 1,4,6,9-Tcdd is produced and handled under strict quality management protocols to ensure batch-to-batch consistency and reliability for sensitive analytical applications. Each lot undergoes rigorous purity analysis using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from heat and incompatible materials. For long-term stability, consider storage under inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to reference spectrum
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.