Fenthion-sulfoxide

O,O-Dimethyl-O-(3-methyl-4-methylsulfinyl phenyl) thiophosphate

Fenthion-sulfoxide (CAS 3761-41-9) is a high-purity reference standard for advanced residue testing. Produced and distributed by WITEGA Laboratorien Berlin-Adlershof GmbH, it supports robust quantification in LC-MS/MS and GC-MS. Use it as an LC-MS/MS calibration solution to achieve reliable calibration and traceability. It performs consistently across diverse matrices, so your results remain defensible.

This material enables precise calibration curves, low-level quantification, and confirmatory analysis. Lot-specific purity and identity are documented to aid traceability. It helps streamline method development and validation, from selectivity to recovery checks. The reference standard dissolves cleanly in common solvent systems used in LC-MS/MS or GC-MS. Therefore, laboratories can standardize workflows and improve comparability.

Typical applications include:

• Residue control in food, feed, and environmental samples
• Method validation, including linearity, accuracy, and precision
• Confirmatory analysis for regulatory compliance
• Metabolism studies and pathway elucidation
• Pharmaceutical and toxicological research programs
• Multi-residue method development and routine QA/QC

Choose this reference standard to support consistent transfer of validated methods. It suits routine residue control, targeted assays, and extended metabolite studies. For documentation, a detailed certificate of analysis accompanies each lot. To discuss formats or ordering, contact WITEGA Laboratorien Berlin-Adlershof GmbH. The Fenthion-sulfoxide (CAS 3761-41-9) reference standard strengthens traceability from calibration to confirmatory endpoints.

You can download your Safety Data Sheet for PS027

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