Isotopically Labeled Compounds
Medchemexpress LLC 1-bromoheptane-d5 | 1219805-66-9 | >98.0% | 184.13 | C7H10D5Br | 5 MG
1-Bromoheptane-d5 is a deuterium-labeled analogue of 1-bromoheptane supplied for research use as an isotope-labeled reagent. It is intended for analytical and synthetic chemistry applications, including use as an internal standard for mass spectrometry, tracer experiments, and mechanistic studies. Not for human use.
- Deuterium-labeled analogue suitable as an internal standard for mass spectrometry.
- High isotopic enrichment (approximately 99 atom % D) and chemical purity ≥98%.
- Intended for tracer studies, mechanistic investigations, and isotope-labeling reactions.
- Provided as a stable liquid for easy handling in small analytical quantities.
- Recommended storage: -20°C (pure form); -80°C in solvent for extended preservation.
Cambridge Isotope Laboratories 0 002% (w/v) TMSP (2 2 3 3-D4 98%) in D2O (D 99 9%) 25 g
0 002% (w/v) TMSP (2 2 3 3-D4 98%) in D2O (D 99 9%) 25 g
American Radiolabeled Chemicals Inc N-OCTA-D-ER-DSPH-3H 50UC
N-Octanoyl-D-erythro-dihydrosphingosine-4,5-3H 50uCi in ethanol, 1 mCi/ml, S.A. 30-60 Ci/mmol, M.W. 413.5, Shipped in Dry Ice, Exclusive
Medchemexpress LLC Creatine-d5 monohydrate | 99.9% | 154.18 g/mol | C4H6D5N3O3 | 1 MG
Creatine-d5 monohydrate is the deuterium-labeled analog of creatine monohydrate provided as a stable-isotope reagent for research use. It serves as an internal standard for mass spectrometry, tracer experiments, and metabolic studies where isotopic labeling enables precise quantitation and pathway tracking. Supplied as a powder in small analytical pack sizes with documented purity and storage recommendations.
Medchemexpress LLC Lanosterol-d6 | 28290-39-3 | MFCD22416700 | 99.0% | 432.75 | C30H44D6O | 100 UG
Lanosterol-d6 is a deuterium-labeled isotopologue of lanosterol supplied for analytical and research use as an internal standard or tracer in metabolic and quantitative assays. It is intended for use in mass spectrometry and NMR workflows where isotopic labeling improves quantitation and compound tracking.
- Deuterium-labeled internal standard for quantitative NMR, GC-MS, and LC-MS.
- High purity, suitable for analytical applications.
- Molecular formula C30H44D6O and molecular weight 432.75 for reference.
- Solid form; stable as powder at -20°C for extended storage.
- Useful for metabolic pathway studies and enzymatic assays related to cholesterol synthesis.
Medchemexpress LLC 1,3-diphenylurea-d10 | 108009-46-7 | 99.0% | 222.31 g·mol-1 | C13H2D10N2O | 10 MG
1,3-Diphenylurea-d10 is a deuterium-labeled analogue of 1,3-diphenylurea used as a stable isotope reagent and internal standard in analytical and tracer studies. Supplied in small research quantities, it is intended for use in mass spectrometry method development, quantitative analysis, and mechanistic experiments requiring isotopic labeling.
- Deuterium-labeled internal standard for mass spectrometry and tracer studies.
- High purity (99.0%) suitable for quantitative analysis.
- Molecular weight approximately 222.31 g·mol-1; formula C13H2D10N2O.
- Supplied in small research pack sizes for analytical workflows.
- Defined storage recommendations for neat and solvent conditions to preserve stability.
Medchemexpress LLC Docosanoic acid-d43 (Behenic acid-d43) | 29823-26-5 | 99.3% | 383.85 | 10 MG
Docosanoic acid-d43 (Behenic acid-d43) is the deuterium-labeled Docosanoic acid. Docosanoic acid is a long-chain saturated fatty acid. It inhibits the double-stranded DNA (dsDNA) binding activity of p53 DNA binding domain, with a Kd of 12 nM. Docosanoic acid has low bioavailability and can increase cholesterol in humans.
- This compound can be used as a tracer.
- This compound can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process.
- Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC D-ribose-d5 | 99.1% | 155.16 g·mol⁻1 | C5H5D5O5 | 1 MG
D-Ribose-d5 is the deuterium-labeled form of D-ribose intended for use as a stable isotope reagent in metabolic, tracer, and analytical applications.
- Deuterium-labeled (d5) ribose for tracer and metabolic studies.
- High purity (99.10%) suitable for analytical applications.
- Molecular formula C5H5D5O5; molecular weight 155.16 g·mol⁻1.
- Useful as an internal standard for mass spectrometry and NMR.
- Supplied in small mg-scale quantities for research use.
Medchemexpress LLC Fluorene-d8 | 35782-21-9 | 174.27 g/mol | C13H2D8 | 5 G
Fluorene-d8 is the deuterium-labeled isotopologue of fluorene provided as an analytical reference standard for research use. It is intended for analytical applications, isotopic tracing, and method development in laboratory workflows; lot-specific certificates of analysis are available on request.
- Deuterium-labeled compound suitable for isotopic tracing and internal standards.
- Supplied as a research-grade analytical standard for laboratory use.
- Available in multiple pack sizes to fit experimental needs.
- Compatible with mass spectrometry and quantitative analysis methods.
- Certificate of analysis available for lot-specific purity and identity data.
Medchemexpress LLC 1-octan-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-d17-ol | 153336-13-1 | 99.1% | 147.33 g/mol | C8HD17O | 100 MG
1-Octanol-d17 is the deuterium-labeled analog of 1-octanol used as an isotopic/internal standard and tracer in analytical and research applications. The heptadeuterio (d17) isotopologue provides a predictable mass shift for accurate quantitation in mass spectrometry and NMR studies.
- High isotopic labeling (d17) for unambiguous mass-shifted signals.
- High purity (GC) suitable for analytical and quantitative work.
- Available in small pack sizes for trace-level experiments.
- Suitable as an internal standard in GC-MS and LC-MS workflows.
- Stable when stored under recommended conditions; follow SDS for handling.
Cambridge Isotope Laboratories Pregnenolone (20 21-13C2 98% 16 16-D2 98%) 1 mg
Pregnenolone (20 21-13C2 98% 16 16-D2 98%) 1 mg
Cambridge Isotope Laboratories Vitamin D3 (cholecalciferol) (26 26 26 27 27 27-D6 98%) 100 ug/mL in ethanol CP 95% 1 mL
Vitamin D3 (cholecalciferol) (26 26 26 27 27 27-D6 98%) 100 ug/mL in ethanol CP 95% 1 mL