Description

4,4'-Dichlorobiphenyl-D8 is a deuterated analog of a polychlorinated biphenyl (PCB) congener, specifically designed for use as an internal standard in analytical chemistry. This high-purity, isotopically labeled compound is critical for ensuring accurate quantification and method validation in trace-level analysis. It is an essential tool for environmental testing laboratories, regulatory agencies, and research institutions focused on persistent organic pollutant (POP) monitoring and toxicology studies.

Application

• Internal Standard for GC-MS/MS Analysis: Primary use as a quantitative reference standard for the analysis of PCBs in environmental matrices (soil, water, sediment).
• Method Development and Validation: Used to establish and validate analytical procedures according to EPA, EU, and other international standards for POPs.
• Quality Control/Quality Assurance (QC/QA): Employed in laboratory proficiency testing and to monitor instrument performance and recovery rates.
• Environmental Forensics and Fate Studies: Aids in tracing PCB sources and studying their environmental degradation and transport.
• Food and Feed Safety Testing: Used in the analysis of PCB residues to ensure compliance with maximum residue limits (MRLs).
• Clinical and Toxicological Research: Supports studies on PCB metabolism, bioaccumulation, and health impact assessments.

Basic Information

Product Name	4,4'-Dichlorobiphenyl-D8
CAS No.	1219805-77-2
Molecular Formula	C12D8Cl2
Molecular Weight	258.15 g/mol
Synonyms	4,4'-Dichlorobiphenyl-d8; PCB 15-d8; 1,1'-Biphenyl, 4,4'-dichloro-d8; 4,4'-DCB-d8; Deuterated 4,4'-Dichlorobiphenyl; 4,4'-Dichlorodiphenyl-d8; [2H8]-4,4'-Dichlorobiphenyl
EINECS	Contact for details

Quality Control

Every batch of 4,4'-Dichlorobiphenyl-D8 is produced and analyzed under strict quality management protocols to ensure the highest isotopic and chemical purity required for analytical standards. Our products undergo rigorous quality testing, including NMR and mass spectrometry, to confirm deuteration level and the absence of unlabeled impurities. A comprehensive Certificate of Analysis (COA) detailing batch-specific purity, isotopic enrichment, and chromatographic data is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. For long-term storage, keep the sealed vial in a desiccated environment at -20°C. Allow the product to equilibrate to room temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity (D-content)	≥ 98 atom % D
Chemical Purity (GC-MS)	≥ 99.0%
Unlabeled 4,4'-DCB Impurity	≤ 1.0%

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