Description

2,3',4',5-Tetracb (Pcb-70) (13C12, 99%) 40+/-2 Ug/Ml In Nonane is a high-purity, stable-isotope labeled analytical standard, specifically formulated as a solution in nonane for precise quantitative analysis. This product is essential for laboratories requiring the highest level of accuracy and traceability in their environmental and toxicological testing protocols. It is primarily used by analytical chemists and researchers in environmental monitoring, food safety, and regulatory compliance sectors for the calibration and validation of sophisticated instrumentation like GC-MS and LC-MS.

Application

• Internal Standard for Mass Spectrometry: Serves as a critical quantitative reference in isotope dilution methods for the accurate determination of PCB congeners in complex matrices.
• Environmental Analysis: Calibration and quality control for testing PCBs in soil, sediment, water, and air samples to meet EPA and other international regulatory standards.
• Food and Feed Safety Testing: Used in the quantification of PCB residues in food products, animal feed, and edible oils to ensure compliance with safety regulations.
• Clinical and Biomedical Research: Supports studies investigating the toxicokinetics, metabolism, and biological monitoring of PCB exposure.
• Method Development and Validation: A key reagent for developing, optimizing, and validating new analytical methods for persistent organic pollutants (POPs).
• Proficiency Testing and Laboratory Accreditation: Provides a traceable reference material for inter-laboratory comparisons and audits under ISO/IEC 17025.

Basic Information

Product Name	2,3',4',5-Tetracb (Pcb-70) (13C12, 99%) 40+/-2 Ug/Ml In Nonane
CAS No.	208263-81-4
Molecular Formula	C12H4Cl4 (unlabeled); ¹³C₁₂H₄Cl₄ (labeled)
Molecular Weight	~291.99 (unlabeled); ~304.00 (labeled, ¹³C₁₂)
Synonyms	PCB 70; 2,3',4',5-Tetrachlorobiphenyl; 2,3,4,5-Tetrachlorobiphenyl (incorrect numbering); ¹³C₁₂-PCB 70; Carbon-13 Labeled PCB Congener 70; Tetrachlorobiphenyl; Aroclor congener; EC 208263-81-4
EINECS	Contact for details

Quality Control

Every batch of our 13C-labeled PCB standards is manufactured and verified under strict quality management systems. The product undergoes comprehensive analysis, including HPLC, GC-MS, and NMR, to confirm isotopic enrichment, chemical purity, and solution concentration. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting the exact concentration, purity, and analytical methods used, ensuring full traceability and compliance with ISO 17034 guidelines for reference materials.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C (refrigerated). The solution is provided in nonane, which is a flammable organic solvent; keep away from heat, sparks, and open flames. For long-term stability, storage under inert atmosphere (e.g., nitrogen) is recommended.

Specification

Item	Specification
Product Form	Solution in Nonane
Concentration	40 ± 2 µg/mL
Isotopic Purity (¹³C₁₂)	≥ 99%
Chemical Purity (HPLC)	≥ 99%
Identification (IR / NMR)	Conforms to structure
Solvent (Nonane) Purity	≥ 99%

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