Description

3,3',4,4'-Tetrachlorodiphenyl-D6 is a stable isotope-labeled analog of a polychlorinated biphenyl (PCB) congener, specifically designed for analytical and research applications. This deuterated compound is essential for use as an internal standard in mass spectrometry, enabling highly accurate quantification and trace analysis of its non-labeled counterpart in complex matrices. It is a critical tool for environmental testing laboratories, analytical chemists, and researchers focused on persistent organic pollutant (POP) monitoring, method development, and regulatory compliance studies.

Application

• Internal Standard for Mass Spectrometry (GC-MS/LC-MS): Primary use for precise quantification of 3,3',4,4'-tetrachlorobiphenyl (PCB 77) in environmental and biological samples.
• Environmental Analysis: Trace analysis of PCBs in soil, sediment, water, and air samples for pollution monitoring and site remediation studies.
• Food Safety Testing: Used in the detection and quantification of PCB residues in food products, animal feed, and edible oils.
• Toxicological and Metabolic Research: Serves as a stable isotope tracer in studies investigating the environmental fate, biodegradation, and metabolic pathways of PCBs.
• Quality Control & Method Validation: Essential for developing, validating, and ensuring the accuracy and precision of analytical methods in accredited testing laboratories.
• Regulatory Compliance: Supports testing to comply with global regulations concerning POPs (Stockholm Convention), EPA methods, and other environmental directives.

Basic Information

Item	Detail
Product Name	3,3',4,4'-Tetrachlorodiphenyl-D6
CAS No.	93952-23-9
Molecular Formula	C12D6Cl4
Molecular Weight	295.98 g/mol
Synonyms	3,3',4,4'-Tetrachlorobiphenyl-D6; PCB 77-D6; 3,3',4,4'-Tetrachloro[phenyl-D6]biphenyl; 3,3',4,4'-Tetrachlorodiphenyl (phenyl-D6); Deuterated PCB 77; [D6]-3,3',4,4'-Tetrachlorobiphenyl; 3,3',4,4'-Tetrachloro-1,1'-biphenyl (phenyl-D6)
EINECS	Contact for details

Quality Control

Every batch of 3,3',4,4'-Tetrachlorodiphenyl-D6 is produced and analyzed under strict quality protocols to ensure the high chemical purity and isotopic enrichment required for sensitive analytical applications. Our quality assurance includes comprehensive characterization by NMR, GC-MS, and HPLC to confirm identity, purity, and deuterium incorporation. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting batch-specific data.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep the container sealed to prevent moisture absorption and potential contamination.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR / NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity (D6)	≥ 98.0 atom % D
Chemical Purity (GC-MS)	≥ 99.0%

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