2-[(3-Chloro-2-methylphenyl)amino]benzoic-¹³C₆-acid

Tolfenamic acid 13C6 (CAS 1420043-61-3) is an isotope-labeled reference standard produced and distributed by WITEGA Laboratorien Berlin-Adlershof GmbH. Use it for LC-MS/MS and GC-MS workflows where accuracy matters. It functions as an LC-MS/MS calibration solution, a traceable calibration material, and a pharmaceutical residue analysis reference. The 13C label closely matches the native analyte. Therefore, it supports stable retention and comparable ionization.

This reference standard enables reliable calibration, method validation, and confirmatory analysis. You can build robust calibration curves with confidence. Moreover, the material helps control matrix effects and improves traceability across batches. As a result, laboratories achieve consistent quantification from run to run.

Key benefits and uses include:

• Accurate LC-MS/MS and GC-MS quantification for traceable results.
• Calibration and system suitability for routine and advanced methods.
• Method validation across matrices with matched physicochemical behavior.
• Confirmatory analysis that meets regulatory expectations.

Typical application areas:

• Regulated laboratories seeking documented traceability and quality control.
• Pharmaceutical research supporting development and stability studies.
• Residue control programs in food, feed, or environmental samples.
• Metabolism studies that require precise isotope tracking.
• Multi-residue method development with stringent accuracy goals.

Tolfenamic acid 13C6 (CAS 1420043-61-3) arrives as a high-quality reference standard from WITEGA Laboratorien Berlin-Adlershof GmbH. It integrates seamlessly into routine screening, targeted quantification, and confirmatory workflows. Furthermore, it supports documentation needs for audits and data integrity. Choose this material to improve traceability, reduce variability, and streamline analytical performance.

You can download your Safety Data Sheet for NS009

For other languages please contact us: witega@witega.de