Lotilaner-D₄

(S)-5-[5-(3,4,5-Trichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-3-methylthiophene-2-carboxylic acid [(2,2,2-trifluoroethyl-D₂ carbamoyl) methyl-D₂] amide

Lotilaner-D4 is a deuterated isoxazoline reference standard produced and distributed by WITEGA Laboratorien Berlin-Adlershof GmbH. This deuterated isoxazoline reference standard supports LC-MS/MS and GC-MS analytical quantification, enables traceability, and strengthens calibration, method validation, and confirmatory analysis. Therefore, it fits routine workflows in residue testing, research, and quality control.

Engineered for robust performance, this reference standard offers consistent response and a defined mass shift for selective detection. It helps laboratories establish linear calibration, verify recovery, and check matrix effects across complex samples. Moreover, it integrates seamlessly into validated methods to improve comparability between runs and instruments.

• High purity and lot-specific documentation for reliable calibration
• Clear isotopic labeling to support selective LC-MS/MS or GC-MS detection
• Traceable performance to enhance method validation and confirmatory analysis
• Optimized for quantitative workflows across diverse matrices

Typical use cases cover regulated laboratories and advanced R and D. It fits applications such as residue control of ectoparasiticides, pharmaceutical research on metabolic behavior, and targeted screenings. In addition, it supports multi-residue method development where retention time and ion ratio confirmation are critical.

• Regulated laboratories needing traceable calibration and verification
• Pharmaceutical and veterinary research, including metabolism studies
• Residue control in food, feed, and environmental monitoring
• Multi-residue method development and confirmatory analysis

For routine operation, prepare working solutions with appropriate solvents and store according to your laboratory procedures. Always document concentrations, batch numbers, and instrument settings for full traceability. For ordering information and technical assistance, please contact WITEGA Laboratorien Berlin-Adlershof GmbH.

You can download your Safety Data Sheet for PS337

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