Nalidixic acid

1-Ethyl-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid

Nalidixic acid (CAS 389-08-2) reference standard is produced and distributed by WITEGA Laboratorien Berlin-Adlershof GmbH. It supports LC-MS/MS and GC-MS quantification, traceable calibration, and confident confirmatory analysis. This material aligns with quinolone antibiotic reference standard requirements and residue analysis standard protocols. Moreover, it suits multi-residue testing standard workflows in routine and research environments.

Use this reference standard to establish reliable calibration curves and to validate precision and accuracy. You can apply it across diverse matrices with appropriate preparation. Furthermore, its documented provenance enhances audit readiness.

• Optimized for LC-MS/MS and GC-MS analytical quantification.
• Traceability supported by batch documentation and a clear audit trail.
• Useful for calibration, method validation, recovery studies, and confirmatory analysis.
• Consistent performance for screening and targeted quantitation.
• Practical handling guidance for robust routine work.

Typical applications include:

• Regulated laboratories needing defensible results.
• Pharmaceutical research exploring antibacterial metabolism and selectivity.
• Residue control programs monitoring quinolone residues.
• Metabolism studies characterizing biotransformation pathways.
• Multi-residue method development across complex matrices.

For daily use, prepare an appropriate stock solution, then perform serial dilutions. Next, build calibration curves and evaluate linearity, accuracy, and precision. Verify retention time and ion ratios for confirmatory analysis. Additionally, document every step to maintain traceability to the reference standard from WITEGA Laboratorien Berlin-Adlershof GmbH. When required, extend validation to matrix effects and stability. Therefore, the Nalidixic acid (CAS 389-08-2) reference standard helps you meet quality and compliance targets while keeping methods efficient.

You can download your Safety Data Sheet for CH049

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