Isotopically Labeled Compounds
Medchemexpress LLC Midodrine-d6 hydrochloride | 1188265-43-1 | MFCD08063467 | 95.0% | 296.78 | C12H13D6ClN2O4 | 5 MG
Midodrine-d6 hydrochloride is the deuterated isotopologue of midodrine provided for research use as a tracer and internal standard in analytical and pharmacological studies. As an adrenergic α1-receptor agonist, it is applied in cardiovascular research and in the development and validation of quantitative analytical methods.
- Deuterated internal standard for accurate quantification by NMR, GC-MS, and LC-MS.
- Selective adrenergic α1-receptor agonist useful for cardiovascular research.
- High isotopic labeling for clear mass spectrometric distinction from native analyte.
- Available in small packaging sizes suitable for method development and standards preparation.
- Hydrochloride salt form enhances stability and solubility for analytical workflows.
![Revvity Health Sciences Inc Insulin (porcine), Receptor Grade, [<sup>125</sup>I]Tyr<sup>A14</sup>, 10µCi](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502811039.jpg-250.jpg)
Revvity Health Sciences Inc Insulin (porcine), Receptor Grade, [125I]TyrA14, 10µCi
Insulin (porcine), Receptor Grade, [125I]TyrA14, 10µCi
Cambridge Isotope Laboratories Modified JIS PCB Alt A Extended Calibration Solution (CS4H) 0 2 mL
Modified JIS PCB Alt A Extended Calibration Solution (CS4H) 0 2 mL
Cambridge Isotope Laboratories METHYL-D3 METHANESULFONATE (D, 98%), 0.5 G
METHYL-D3 METHANESULFONATE (D, 98%), 0.5 G
Medchemexpress LLC Flucytosine-13C,15N2 | 1216616-31-7 | 98.1% | 1 MG
Flucytosine-13C,15N2 is a 13C- and 15N-labeled derivative of Flucytosine, primarily for research use only. It serves as a tracer or an internal standard for quantitative analysis. The incorporation of stable heavy isotopes into drug molecules aids in quantitation during drug development, with deuteration specifically impacting pharmacokinetic and metabolic profiles.
- Used as a tracer
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Incorporates stable heavy isotopes into drug molecules for quantitation
- Deuteration can affect pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC Cysteamine-d4 hydrochloride | 1219805-04-5 | MFCD08704995 | 99.0% | 117.63 | C2H4D4ClNS | 10 MG
Cysteamine-d4 hydrochloride is the deuterium-labeled hydrochloride salt of cysteamine provided as a research-grade isotopically labeled reagent for analytical and biochemical studies. It is designed for use where deuterium labeling improves detection, quantification, or tracing in laboratory methods.
- Deuterium-labeled analog for isotope tracing and internal standards.
- High purity suitable for analytical applications.
- Defined molecular weight and formula for accurate mass calculations.
- Applicable to mass spectrometry, metabolic profiling, and mechanistic studies.
- Available in small research pack sizes for method development and validation.
Medchemexpress LLC Fluorene-d10 | 81103-79-9 | MFCD00144313 | 98.0% | 176.29 g/mol | C13D10 | 50 MG
Fluorene-d10 is the deuterium-labeled isotopologue of fluorene supplied as a research-grade analytical standard. It is used in mass spectrometry, tracer studies, and as a labeled precursor in synthetic chemistry. The material is a white to off-white solid with high isotopic enrichment and is intended for research use only.
- Deuterium-labeled fluorene for tracer and analytical work.
- High purity: 98.0% (HPLC).
- Molecular formula C13D10; molecular weight 176.29 g/mol.
- White to off-white solid; soluble in DMSO and ethanol.
- Store at -20°C and protect from light.
- Intended for research use only.
Medchemexpress LLC Pentoxifylline-d5 | 1185995-18-9 | 99.9% | 283.34 | C13H13D5N4O3 | 10 MG
Pentoxifylline-d5 is the deuterated analogue of pentoxifylline supplied for analytical and research use as an internal standard and tracer. It is intended for quantitative bioanalytical and pharmacokinetic studies and is compatible with NMR, GC-MS, and LC-MS methods.
- Deuterated internal standard for quantitative analysis.
- Suitable for NMR, GC-MS, and LC-MS assays.
- High isotopic and chemical purity for accurate quantitation.
- Provided in milligram-scale quantities for analytical workflows.
- Useful in pharmacokinetic and tracer studies.
Medchemexpress LLC MPP+-d3 (iodide) | 207556-07-8 | 99.2% | 300.15 | 5 MG
MPP+-d3 (iodide) is deuterium labeled MPP+ (iodide). MPP+ iodide is a toxic metabolite of the neurotoxin MPTP, which causes Parkinson's disease symptoms in animal models by selectively destroying dopaminergic neurons in the substantia nigra. It is taken up by the dopamine transporter into dopaminergic neurons, where it exerts its neurotoxic action on mitochondria by affecting complex I of the respiratory chain. MPP+ iodide is also a high-affinity substrate for the serotonin transporter (SERT). This compound can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuterium labeled compound.
- Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated for use as tracers in drug development.
- Has potential to affect pharmacokinetic and metabolic profiles of drugs.