Description

1,2,4,6,9-Pcdd is a high-purity, specialized polychlorinated dibenzo-p-dioxin (PCDD) congener, identified by CAS NO 82291-36-9. This compound is of critical importance as a certified reference material and analytical standard for environmental monitoring, food safety testing, and toxicological research. It is primarily needed by analytical laboratories, regulatory bodies, and research institutions involved in the precise quantification and study of persistent organic pollutants (POPs) and dioxin contamination.

Application

• Certified Reference Standard for the calibration of GC-MS and HRGC-HRMS systems in dioxin analysis.
• Quality Control Material in the testing of environmental samples (soil, water, air emissions) for regulatory compliance.
• Analytical Spike for recovery studies and method validation in food and feed safety laboratories (e.g., for EU Directive 2002/32/EC).
• Toxicological Research to study the congener-specific effects, metabolism, and environmental fate of PCDDs.
• Proficiency Testing programs for inter-laboratory comparisons and accreditation (ISO/IEC 17025).
• Manufacturing Control for companies producing materials or chemicals where dioxin formation is a potential by-product.

Basic Information

Product Name	1,2,4,6,9-Pcdd
CAS No.	82291-36-9
Molecular Formula	C₁₂H₄Cl₄O₂
Molecular Weight	321.97 g/mol
Synonyms	1,2,4,6,9-Pentachlorodibenzo-p-dioxin; 1,2,4,6,9-Pentachlorodibenzodioxin; PCDD 12469; 1,2,4,6,9-PeCDD; Dibenzodioxin, 1,2,4,6,9-pentachloro-; 2,3,7,8-Substituted PCDD congener (12469); RCRA waste number U120
EINECS	Contact for details

Quality Control

Every batch of 1,2,4,6,9-Pcdd is manufactured and handled under strict quality protocols to ensure identity, purity, and stability. Our products undergo rigorous quality testing, including chromatographic purity verification and confirmation of concentration, to ensure compliance with standards for certified reference materials. A comprehensive Certificate of Analysis (COA) detailing batch-specific results is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. This material is strictly light-sensitive and must be protected from all light exposure during storage and handling to prevent degradation. For long-term storage, keep under inert atmosphere in a freezer (-20°C).

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Purity (GC-MS)	≥ 98.0%
Concentration (in solution)	10 µg/mL ± 5% (in nonane or toluene)
Related Substances (GC-MS)	Total other PCDD congeners < 2.0%
Water Content (KF)	< 0.5%

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