Lenvatinib-d4 | CAS 417716-92-8

Lenvatinib-d4 | CAS 417716-92-8

Lenvatinib-d4 is a high-quality, stable isotope-labeled analogue of Lenvatinib, in which four hydrogen atoms are replaced with deuterium (²H). This isotopically labeled reference standard is widely used in pharmaceutical, bioanalytical, and clinical research laboratories as an internal standard for LC-MS/MS and LC-HRMS assays. Because Lenvatinib-d4 possesses nearly identical physicochemical and chromatographic properties to native Lenvatinib while being distinguishable by mass spectrometry, it provides exceptional accuracy for quantitative bioanalysis, pharmacokinetic (PK) studies, metabolism research, and therapeutic drug monitoring (TDM).

Stable isotope-labeled compounds such as Lenvatinib-d4 have become indispensable in regulated bioanalytical laboratories because they effectively compensate for matrix effects, extraction variability, ion suppression, and instrument response fluctuations. As a result, Lenvatinib-d4 is routinely employed during method development, validation, and routine sample analysis in accordance with regulatory expectations for quantitative LC-MS/MS assays.

Chemical Properties of Lenvatinib-d4 (CAS 417716-92-8)

Applications of Lenvatinib-d4

Lenvatinib-d4 is primarily utilized as an analytical reference material rather than as a therapeutic agent. Its applications include:

• Internal standard for quantitative LC-MS/MS analysis of Lenvatinib
• Pharmacokinetic (PK) and toxicokinetic studies
• Bioequivalence and biosimilar research
• Drug metabolism and ADME investigations
• Clinical pharmacology studies
• Therapeutic drug monitoring (TDM)
• Pharmaceutical formulation development
• Method development and validation
• Stability-indicating analytical methods
• High-resolution mass spectrometry (HRMS) workflows

The use of an isotope-labeled internal standard significantly improves assay precision, reproducibility, and quantitation, particularly when analyzing complex biological matrices such as plasma, serum, urine, or tissue homogenates.

Importance in LC-MS/MS Bioanalysis

Quantitative bioanalysis requires highly reliable internal standards to minimize analytical variability. Since Lenvatinib-d4 co-elutes with unlabeled Lenvatinib while exhibiting a predictable mass shift, it undergoes virtually identical extraction efficiency, chromatographic retention, and ionization behavior.

This enables correction for:

• Sample preparation losses
• Matrix-induced ion suppression or enhancement
• Instrument variability
• Injection volume differences
• Extraction recovery variations
• Day-to-day analytical fluctuations

Consequently, laboratories developing validated bioanalytical methods frequently select Lenvatinib-d4 as the preferred internal standard for sensitive and reproducible quantification of Lenvatinib in biological samples.

Role in Pharmacokinetic and Drug Metabolism Studies

Lenvatinib is a multi-target receptor tyrosine kinase inhibitor used clinically in oncology. During drug development and clinical research, accurate measurement of drug concentrations is essential for determining pharmacokinetic parameters such as:

• Cmax
• Tmax
• Area Under the Curve (AUC)
• Clearance (CL)
• Volume of Distribution (Vd)
• Elimination Half-Life
• Bioavailability

Lenvatinib-d4 enables highly accurate quantitative analysis throughout these studies by providing consistent calibration and quality control across analytical batches. Stable isotope labeling is also valuable for absorption, distribution, metabolism, and excretion (ADME) investigations.

Advantages of Stable Isotope-Labeled Standards

Compared with structural analogues, stable isotope-labeled internal standards provide several analytical advantages:

• Nearly identical chemical behavior to the target analyte
• Excellent chromatographic co-elution
• Minimal analytical bias
• Superior quantitative accuracy
• Enhanced precision and reproducibility
• Reduced matrix effects
• Improved assay robustness
• Compatibility with validated regulatory bioanalytical methods

These characteristics make Lenvatinib-d4 an excellent choice for laboratories performing regulated pharmaceutical analysis under GLP, GCP, or GMP environments.

Research and Pharmaceutical Applications

Lenvatinib-d4 is suitable for numerous research and analytical workflows, including:

• Bioanalytical assay development
• Clinical sample analysis
• Pharmacokinetic research
• Toxicology studies
• Drug-drug interaction investigations
• Metabolite profiling
• Method transfer between laboratories
• Analytical quality control
• Reference standard qualification
• Pharmaceutical research and development

Because of its isotope labeling, Lenvatinib-d4 allows selective detection by tandem mass spectrometry without interference from endogenous compounds.

Why Choose ResolveMass Laboratories Inc.?

ResolveMass Laboratories Inc. supports pharmaceutical, biotechnology, and academic organizations with advanced analytical solutions for stable isotope-labeled compounds and reference standards. Our experienced scientists utilize state-of-the-art LC-MS/MS and high-resolution mass spectrometry platforms to support method development, analytical validation, pharmacokinetic studies, impurity analysis, and quantitative bioanalysis.

Whether your project involves preclinical research, clinical bioanalysis, pharmaceutical development, or regulatory submissions, ResolveMass provides reliable analytical expertise and scientifically rigorous support to help accelerate your research and development programs.

For additional information regarding Lenvatinib-d4 (CAS 417716-92-8) or other isotope-labeled reference standards, contact the analytical experts at ResolveMass Laboratories Inc. for customized solutions tailored to your research and pharmaceutical analytical requirements.

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