Isotopically Labeled Compounds
Medchemexpress LLC Anabaseine-d4 5mg | 1020719-05-4 | 164.24 | C10H8D4N2 | 5 MG
Anabaseine-d4 (CAS 1020719-05-4) is the deuterium-labeled analog of anabaseine supplied as a small-quantity research reagent for analytical and pharmacological studies. It is used as a tracer or internal standard in mass spectrometry and for investigating nicotinic acetylcholine receptor activity.
- Deuterium-labeled analog of anabaseine.
- Suitable as an internal standard or tracer in analytical assays.
- Used in studies of nicotinic acetylcholine receptors.
- Provided in small research-use quantities, typically milligram scale.
Medchemexpress LLC D-Fructose-d-1 | 57-48-7 | 5 MG
D-Fructose-d-1 is a deuterium-labeled form of D-Fructose, a naturally occurring monosaccharide found in various plants. Deuterium substitution has gained attention due to its potential to affect the pharmacokinetic and metabolic profiles of drugs. This compound is intended for research use only.
- Used as a tracer.
- Serves as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Purity is 98.0%.
- Molecular weight is 181.16.
- Chemical formula is C6H11DO6.
- Appears as a white to off-white solid.
- Soluble in H2O at ≥ 100 mg/mL.
Medchemexpress LLC Budesonide-d8 | 1105542-94-6 | MFCD07369194 | 97.6% | 438.58 g/mol | C25H26D8O6 | 5 MG
Budesonide-d8 is the deuterium-labeled analog of budesonide intended for use as an internal standard and reference material in bioanalytical and pharmacokinetic studies. Its mass-shifted isotopic composition allows specific detection and accurate quantitation by mass spectrometry while closely matching the chemical behavior of the unlabeled analyte.
- Deuterium-labeled internal standard for LC-MS/MS assays.
- Enables accurate quantitation and reliable peak identification.
- Suitable for pharmacokinetic, metabolic, and bioanalytical studies.
- High purity for analytical reproducibility (approximately 97.6%).
- Provided in small-mass formats for method development and validation.
Medchemexpress LLC Valproic acid-d6 | 87745-18-4 | MFCD01074058 | 99.8% | 150.25 g/mol | C8H10D6O2 | 1 MG
Valproic acid-d6 is the deuterium-labeled analogue of valproic acid used as an isotopic standard and tracer in analytical and research workflows. It provides a defined mass shift for accurate quantitation by mass spectrometry and is supplied as a high-purity reagent in small-scale quantities.
- Deuterium-labeled analogue for use as an internal standard in mass spectrometry.
- High purity suitable for analytical applications (reported 99.8%).
- Molecular formula C8H10D6O2; molecular weight 150.25 g/mol.
- Supplied as a small, 1 mg package for method development and validation.
- Store at -20°C for long-term stability; short-term storage at 4°C.
![Medchemexpress LLC L-leucine-2,3,3,4,5,5,5,5',5',5'-d10, N-[(9H-fluoren-9-ylmethoxy)carbonyl]- | 1190594-22-9 | None | 98.9% | 363.47 | C21H13D10NO4 | 25 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000213247.png-250.jpg)
Medchemexpress LLC L-leucine-2,3,3,4,5,5,5,5',5',5'-d10, N-[(9H-fluoren-9-ylmethoxy)carbonyl]- | 1190594-22-9 | None | 98.9% | 363.47 | C21H13D10NO4 | 25 MG
Fmoc-leucine-d10 is a deuterium-labeled, Fmoc-protected L-leucine supplied as a research reagent for isotopic labeling, peptide synthesis, and analytical standards. It is offered at high chemical purity for use in mass spectrometry, synthetic chemistry, and biological studies where isotopic tracers are required.
- Deuterium-labeled (d10) Fmoc-protected amino acid.
- High purity: 98.9%.
- Molecular weight 363.47 and formula C21H13D10NO4.
- Available in small research quantities such as 25 MG.
- Suitable as an MS internal standard and isotopic tracer.
- Reported to modulate PPARγ activity in biological assays.
Revvity Health Sciences Inc OptiScint 14C & 3HÂ Quench Standard Set, 20 mL Vial
OptiScint 14C & 3HÂ Quench Standard Set, 20 mL Vial
Medchemexpress LLC Benzyl alcohol-d7 | 71258-23-6 | 99.6% | 100 MG
Benzyl alcohol-d7 is the deuterium-labeled Benzyl alcohol, an aromatic alcohol that appears as a colorless liquid with a mild, pleasant aromatic odor. It is intended for research use only and is not sold to patients.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Stable heavy isotopes have been incorporated into drug molecules for quantitation during the drug development process
- Deuteration has the potential to affect the pharmacokinetic and metabolic profiles of drugs
Cayman Chemical Oleic Acid-13C, Purity: ≥98%, CAS: 82005-44-5, 1 mg
An internal standard for the quantification of oleic acid by GC- or LC-MS
Medchemexpress LLC Tolbutamide-d9 | 1219794-57-6 | MFCD06658779 | 99.0% | 279.40 g·mol⁻¹ | C12H9D9N2O3S | 10 MG
Tolbutamide-d9 is the deuterium-labeled analogue of tolbutamide used as an analytical internal standard and tracer for quantitative assays and method development. It is intended for use in LC-MS, GC-MS, NMR, and pharmacokinetic/ADME studies where an isotopically labeled reference improves accuracy and precision.
- Deuterium-labeled internal standard for quantitative LC-MS and GC-MS
- High isotopic and chemical purity for accurate quantitation
- Suitable for pharmacokinetic and ADME studies
- Provided in small analytical pack sizes for trace-level work
- Well characterized for analytical method development and validation
Medchemexpress LLC Prostaglandin E2-d4 | 34210-10-1 | 99.9% | 356.49 | C20H28D4O5 | 50 UG
Prostaglandin E2-d4 is a deuterium-labeled analogue of prostaglandin E2 used as an internal standard for quantitative analytical assays. It is provided as a 1.40 mM solution (100 μL, 50 μg) in methyl acetate, appears as a colorless to light yellow liquid, and is intended for research use with storage at -20°C.
- Deuterium-labeled internal standard for accurate quantitation.
- High purity (99.9%) for reliable analytical results.
- Ready-to-use solution (1.40 mM in methyl acetate) for convenience.
- Compatible with LC-MS/MS and other mass spectrometry methods.
- Stable when stored at -20°C for up to 2 years.
Cambridge Isotope Laboratories Pyruvate 13C labeling mix (13C 99%) 1 kit
Pyruvate 13C labeling mix (13C 99%) 1 kit
eMolecules 347841-43-4 | Medchem Express | Acetylcholine-d16 (bromide) | 1mg | 784544309 | HY-B0282AS3 | MFCD01074175 | 242.212 | C7H16BrNO2
Ambeed | (4-Carbamoyl-3-chlorophenyl)boronic acid | 250mg | 586031168 | A365815 | 850589-52-5 | MFCD07363777 | 199.400 | C7H7BClNO3
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Cayman Chemical OlaparIb-d4 500UG
An internal standard for the quantification of olaparib by GC- or LC-MS
Medchemexpress LLC Citric acid-d4 | 147664-83-3 | MFCD00209702 | 99.3% | 196.15 | C6H4D4O7 | 10 MG
Citric acid-d4 is the deuterium-labeled form of citric acid supplied as a white to off-white solid. It serves as a stable-isotope reference standard for analytical workflows, including mass spectrometry, NMR, isotopic tracer experiments, and quantitative assays. Molecular formula C6H4D4O7; molecular weight 196.15; purity 99.31%.
- Deuterium labeled (d4) for isotope dilution and tracer studies.
- High purity for reliable quantitation.
- Solid form simplifies weighing and solution preparation.
- Available in small research-sized pack quantities.
- Stable when stored sealed away from moisture and light.
Medchemexpress LLC L-Glutamine-d5 (L-Glutamic acid 5-amide-d5) | 14341-78-7 | 151.18 | 1 MG
L-Glutamine-d5 is a deuterium-labeled L-Glutamine. L-Glutamine (L-Glutamic acid 5-amide) is a non-essential amino acid found abundantly throughout the body and involved in many metabolic processes. It provides a source of carbons for oxidation in some cells.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuteration has the potential to affect the pharmacokinetic and metabolic profiles of drugs.