Description

1,2,6,9-Tcdd CAS NO 40581-91-7 is a high-purity chlorinated aromatic compound, specifically a tetrachlorinated dibenzo-p-dioxin isomer, valued for its role as a critical intermediate and reference standard in advanced chemical synthesis and analytical research. Its defined structure and purity are essential for ensuring accuracy and reproducibility in the development of specialty chemicals and environmental testing protocols. This compound is primarily required by R&D laboratories, analytical service providers, and manufacturers in the agrochemical and pharmaceutical sectors for process development and quality control applications.

Application

• Chemical Intermediate: Serves as a key building block in the synthesis of more complex chlorinated aromatic compounds and specialty polymers.
• Analytical Reference Standard: Used for the calibration of instruments and as a qualitative/quantitative standard in gas chromatography-mass spectrometry (GC-MS) and high-performance liquid chromatography (HPLC) for environmental and food safety testing.
• Research & Development: Employed in academic and industrial R&D for studying the properties, reactivity, and environmental fate of polychlorinated dibenzo-p-dioxins (PCDDs).
• Toxicological Studies: Utilized as a model compound in environmental toxicology research to understand the behavior and impact of dioxin-like substances.
• Method Development: Critical for developing and validating new analytical methods for the detection of trace-level dioxins and furans in various matrices.
• Quality Control: Applied in the quality assurance processes of industries that monitor or handle chlorinated organic materials to ensure process safety and regulatory compliance.

Basic Information

Product Name	1,2,6,9-Tcdd
CAS No.	40581-91-7
Molecular Formula	C₁₂H₄Cl₄O₂
Molecular Weight	321.97 g/mol
Synonyms	1,2,6,9-Tetrachlorodibenzo-p-dioxin; 1,2,6,9-Tetrachlorodibenzodioxin; 1,2,6,9-TeCDD; NSC 174546; Dibenzo[b,e][1,4]dioxin, 1,2,6,9-tetrachloro-; 1,2,6,9-T4CDD
EINECS	Contact for details

Quality Control

Our 1,2,6,9-Tcdd is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets exacting standards for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

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 strong acids and incompatible organic solvents. For long-term storage, consider inert atmosphere conditions to ensure stability.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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