Description

2,3,3',4,4',5'-Hexacb (Pcb-157) (13C12, 99%) 40+/-2 Ug/Ml In Nonane is a high-purity, carbon-13 labeled internal standard solution essential for advanced analytical chemistry. This product provides a critical reference for the accurate quantification and trace analysis of polychlorinated biphenyl (PCB) congeners in complex matrices. It is primarily required by environmental testing laboratories, regulatory agencies, and research institutions engaged in method development, quality control, and compliance monitoring for persistent organic pollutants (POPs).

Application

• Internal Standard for GC-MS/HRMS Analysis: Used as a quantitative reference for the determination of PCB-157 and other co-eluting congeners in environmental samples.
• Method Development and Validation: Critical for establishing and verifying the accuracy, precision, and detection limits of analytical procedures for PCBs.
• Quality Assurance/Quality Control (QA/QC): Employed in laboratory proficiency testing, spike recovery studies, and ongoing calibration checks to ensure data integrity.
• Environmental Monitoring: Facilitates the trace-level detection of PCBs in soil, sediment, water, and biota for regulatory compliance and site remediation projects.
• Food and Feed Safety Analysis: Supports the monitoring of PCB contamination in the food chain to ensure consumer safety and meet international food safety standards.
• Research on PCB Metabolism and Fate: The carbon-13 label allows for tracking and differentiation from native PCBs in metabolic, degradation, and environmental fate studies.

Basic Information

Product Name	2,3,3',4,4',5'-Hexacb (Pcb-157) (13C12, 99%) 40+/-2 Ug/Ml In Nonane
CAS No.	235416-30-5
Molecular Formula	¹³C₁₂H₄Cl₆
Molecular Weight	~376.88 (for ¹³C₁₂ isotopologue)
Synonyms	PCB 157-¹³C₁₂; 2,3,3',4,4',5'-Hexachlorobiphenyl-¹³C₁₂; ¹³C-labeled PCB-157; Hexachlorobiphenyl-¹³C₁₂ (PCB Congener 157); 2,3,3',4,4',5'-HexaCB; IUPAC Name: 1,2,3,4,5,6-Hexachloro-1',2',3',4',5',6'-dodecadeuteriobiphenyl (¹³C₁₂); Carbon-13 Labeled PCB 157; Internal Standard for PCB Analysis (13C12).
EINECS	Contact for details

Quality Control

Every batch of our carbon-13 labeled PCB-157 is manufactured and verified under strict quality protocols to ensure isotopic purity, chemical stability, and concentration accuracy. The solution is certified against primary reference materials and undergoes rigorous analysis by GC-MS and/or HPLC. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing the exact concentration, isotopic enrichment, solvent verification, and purity assessment to support your compliance with ISO/IEC 17025, EPA methods (e.g., 1668), and other global regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C (refrigerated). Due to its highly volatile nature in nonane solvent, ensure containers are securely sealed and stored upright in a well-ventilated area. Allow the solution to equilibrate to room temperature before use and handle with appropriate precautions to minimize solvent evaporation.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow solution
Concentration	40 ± 2 µg/mL in Nonane
Isotopic Purity (¹³C)	≥ 99%
Chemical Purity (PCB-157)	≥ 99% (by GC)
Solvent	Nonane (HPLC/GC Grade)
Identification (IR/MS)	Conforms to structure
Water Content	< 0.1% (by KF)

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