Chlorthiophos-sulfoxide

O-(2,5-Dichloro-4-methylsulfinyl phenyl)-O,O-diethyl thiophosphate

Chlorthiophos-sulfoxide (CAS 29185-21-5) reference standard is produced and distributed by WITEGA Laboratorien Berlin-Adlershof GmbH. It supports LC-MS/MS and GC-MS quantification with traceability, calibration, and confirmatory analysis. Related applications include organophosphate pesticide metabolite reference standard, multi residue method development standard, GC-MS confirmation reference, method validation spike standard, residue analysis quality control, calibration curve preparation solution, regulated laboratory proficiency testing material, and pharmaceutical metabolism study standard.

Designed for building calibration curves and improving accuracy, this material reduces uncertainty across runs. Traceable preparation and documented purity enable consistent results across instruments and sites. Use it for method validation, matrix-matched calibration, and confirmatory analysis under regulated workflows. Furthermore, it integrates smoothly into routine LC-MS/MS and GC-MS screening sequences.

Typical users include regulated laboratories, contract research organizations, and quality control units. Pharmaceutical research teams apply this reference standard in metabolism studies and metabolite identification. Residue control programs deploy it for food and environmental monitoring. Moreover, multi-residue method development benefits from its stability and defined concentration. Chlorthiophos-sulfoxide (CAS 29185-21-5) remains central to these tasks.

Key advantages for analytical workflows:

• High purity with lot-specific documentation for traceability
• Accurate concentration for reliable calibration curve preparation
• Excellent compatibility with common LC-MS/MS and GC-MS solvents
• Supports quality control, recovery checks, and confirmatory analysis
• Suitable for matrix-matched calibration and spike experiments
• Consistent performance that facilitates inter-laboratory comparability

Each reference standard batch from WITEGA Laboratorien Berlin-Adlershof GmbH includes the documentation required for defensible data. Therefore, laboratories can maintain reproducible quantification and audit-ready results throughout the method lifecycle.

You can download your Safety Data Sheet for PS101

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