Description

1,2,3,8-Tetrachlorodibenzo-Para-Dioxin CAS NO 53555-02-5 is a specific chlorinated dioxin congener of significant interest in analytical and environmental chemistry. This compound is primarily utilized as a critical reference standard for the precise identification and quantification of dioxin and furan contaminants. It serves researchers and quality control laboratories in industries requiring rigorous environmental monitoring and toxicological assessment. The availability of a high-purity, well-characterized standard is essential for ensuring the accuracy of analytical data and regulatory compliance.

Application

• Analytical Reference Standard: Primary use as a certified standard for calibrating GC-MS and HRGC/HRMS systems in dioxin analysis.
• Environmental Testing: Calibration and method validation for detecting and quantifying polychlorinated dibenzo-p-dioxins (PCDDs) in soil, water, and air samples.
• Food and Feed Safety Analysis: Used in laboratories to monitor and ensure compliance with strict regulatory limits for dioxins in the food chain.
• Toxicological Research: Serves as a precise chemical entity in studies investigating the congener-specific toxicity, environmental fate, and bioaccumulation of dioxins.
• Quality Assurance/Quality Control (QA/QC): Employed in laboratory proficiency testing and the preparation of quality control samples to ensure analytical reliability.
• Regulatory Compliance and Method Development: Essential for developing, validating, and auditing analytical methods according to EPA, EU, and other international standards.

Basic Information

Product Name	1,2,3,8-Tetrachlorodibenzo-Para-Dioxin
CAS No.	53555-02-5
Molecular Formula	C₁₂H₄Cl₄O₂
Molecular Weight	321.97 g/mol
Synonyms	1,2,3,8-TCDD; 1,2,3,8-Tetrachlorodibenzo[b,e][1,4]dioxin; 1,2,3,8-Tetrachlorodibenzodioxin; NSC 174546; Tetrachlorodibenzo-p-dioxin (1,2,3,8- isomer); Dibenzo[b,e][1,4]dioxin, 1,2,3,8-tetrachloro-
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 thoroughly characterized using advanced analytical techniques including high-resolution gas chromatography/mass spectrometry (HRGC/HRMS). A comprehensive Certificate of Analysis (COA) is provided, detailing the certified purity, chromatographic data, and storage conditions. We support compliance with ISO 17034 and relevant EPA methodologies for reference material producers.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C (refrigerated) or as indicated on the label or Certificate of Analysis. For long-term storage, solutions should be kept at -20°C under inert atmosphere. Allow the sealed vial to equilibrate to room temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	White to off-white solid or solution
Identification (IR / MS)	Conforms to reference spectrum
Purity (by GC-MS)	≥ 98.0% (area percent)
Purity (by HRGC/HRMS)	Certified value provided on COA
Solvent (if applicable)	Nonane, Toluene, or as specified
Concentration (if solution)	10 µg/mL, 50 µg/mL, or as specified
Expiry Date	As stated on label and COA

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