4-Amino-N-(5-methyl-2-phenyl-2H-pyrazol-3-yl)-benzene-¹³C₆-sulfonamide

Sulfapyrazole 13C6 (CAS 1420043-51-1) is an isotopically labeled reference standard produced and distributed by WITEGA Laboratorien Berlin-Adlershof GmbH. As an isotopically labeled sulfonamide reference standard and LC-MS/MS calibration material, it supports accurate quantification in complex matrices. It delivers clear identification, reliable response matching, and robust method performance for LC-MS/MS and GC-MS workflows.

Developed for rigorous routine use, this reference standard enables traceable calibration, method validation, and confirmatory analysis. Each lot is characterized for purity and isotopic enrichment to support consistent results and durable comparability across studies. Consequently, analysts can build confidence in data quality and maintain continuity across campaigns.

• Optimized for LC-MS/MS and GC-MS quantification and screening.
• Suitable for calibration curves, matrix-matched calibration, and recovery checks.
• Batch documentation and recommended storage guidance for long-term reliability.
• Compatible with common extraction and chromatographic conditions.
• Designed to strengthen selectivity, reduce interference, and improve detection limits.

Typical applications include:

• Regulated laboratories performing residue control and confirmatory analysis.
• Pharmaceutical research focusing on metabolism studies and metabolite tracking.
• Analytical service providers developing and validating multi-residue methods.
• Academic and industrial labs building traceable calibration strategies.

Use this reference standard to verify linearity, precision, and accuracy. Spike at relevant levels to evaluate matrix effects, carryover, and identification points. Furthermore, apply it to assess long-term stability and instrument performance during routine monitoring. For ordering, documentation, and technical support, please contact WITEGA Laboratorien Berlin-Adlershof GmbH.

You can download your Safety Data Sheet for SA021

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