Description

2,4,4′,5‐Tetrabromodiphenyl Ether Standard Solution is a high-purity, certified reference material (CRM) used for analytical calibration and quality control. This solution is critical for ensuring the accuracy and reliability of analytical methods, particularly in environmental and regulatory testing. It is an essential tool for analytical laboratories, research institutions, and quality assurance departments that require precise quantification of brominated flame retardants and related compounds.

Application

• Analytical Method Development and Validation: Primary standard for establishing calibration curves in chromatographic techniques like GC-MS and HPLC.
• Environmental Monitoring: Quantification of polybrominated diphenyl ethers (PBDEs) and related contaminants in soil, water, and air samples.
• Food and Feed Safety Analysis: Reference standard for detecting and measuring brominated flame retardant residues in food products and animal feed.
• Quality Control (QC) and Proficiency Testing: Used as a known spike or control sample to verify laboratory performance and instrument accuracy.
• Regulatory Compliance Testing: Essential for testing against standards set by agencies like the EPA, EU REACH, and RoHS for restricted substances.
• Research on Brominated Flame Retardants: Key reagent in studies investigating the environmental fate, toxicity, and behavior of PBDE congeners.

Basic Information

Item	Details
Product Name	2,4,4′,5‐Tetrabromodiphenyl Ether Standard Solution
CAS No.	446254-42-8
Molecular Formula	C₁₂H₆Br₄O
Molecular Weight	485.79 g/mol
Synonyms	2,4,4',5-Tetrabromodiphenyl ether; BDE-49; PBDE-49; 2,4,4',5-TetraBDE; Tetrabromodiphenyl ether solution; Certified Reference Material (CRM) for BDE-49; Analytical Standard for PBDEs
EINECS	Contact for details

Quality Control

Every batch of our 2,4,4′,5‐Tetrabromodiphenyl Ether Standard Solution is produced and certified under strict quality management protocols. The solution is characterized using high-precision analytical techniques to ensure exact concentration, purity, and stability. A comprehensive Certificate of Analysis (COA) is supplied with each unit, detailing the certified value, measurement uncertainty, expiration date, and traceability to national or international standards. Our quality system supports compliance with ISO/IEC 17025 and ISO Guide 34 requirements for reference material producers.

Storage

Preserve in a tightly closed container, protected from light. Store at the temperature specified on the certificate, typically between 2°C and 8°C (refrigerated) or as indicated. Keep the container in an upright position. Handle with appropriate precautions for solutions containing strong acid/organic solvent.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow solution
Identification (GC-MS / HPLC)	Conforms to reference spectrum
Certified Concentration	Typically 10 µg/mL to 100 µg/mL in nonane, toluene, or iso-octane
Expanded Uncertainty (k=2)	± 2% to 5% of stated concentration
Purity (HPLC)	> 98.0% (of target congener)
Solvent	As specified on label and COA

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