Sulfamethoxazole-¹³C₆

4-Amino-N-(5-methyl isoxazol-3-yl) benzene-¹³C₆-sulfonamide

Sulfamethoxazole-13C6 (CAS 1196157-90-0) is a stable isotope reference material and high-quality reference standard produced and distributed by WITEGA Laboratorien Berlin-Adlershof GmbH. It supports LC-MS/MS and GC-MS quantification with excellent traceability, precise calibration, and robust method validation. Therefore, laboratories can achieve confident confirmatory analysis and consistent results.

This reference standard enables accurate calibration curves and routine quality control. It improves identification and quantitation in complex matrices. Moreover, it helps verify selectivity and recovery during method development. You can apply it in LC-MS/MS or GC-MS workflows to strengthen traceability and long-term comparability of data. The material suits matrix-matched calibration, spike-and-recovery studies, and confirmatory analysis.

• Optimized for LC-MS/MS and GC-MS calibration and QC.
• Designed for traceability and consistent response factors.
• Supports method validation and confirmatory analysis.
• Fit for multi-residue workflows and screening.
• Reliable purity information for reproducible quantification.

Typical use cases include regulated laboratories, pharmaceutical research, residue control, metabolism studies, and multi-residue method development. Furthermore, it assists in proficiency testing and system suitability checks. You can integrate this reference standard into established extraction protocols and rugged sample preparation procedures.

• Build calibration curves across wide dynamic ranges.
• Assess matrix effects and evaluate recovery.
• Confirm identity with retention time and ion ratios.
• Improve method robustness and comparability across sites.

Sulfamethoxazole-13C6 (CAS 1196157-90-0) ensures confidence from validation to routine monitoring. In addition, ongoing support from WITEGA Laboratorien Berlin-Adlershof GmbH helps you maintain reliable performance over the lifetime of your method. Choose this reference standard to secure traceable, defensible results in demanding analytical environments.

You can download your Safety Data Sheet for SA004

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