Isotopically Labeled Compounds
Medchemexpress LLC D-Fructose-13C-1 | 117013-19-1 | 10 MG
D-Fructose-13C-1 is the 13C labeled D-Fructose. D-Fructose (D(-)-Fructose) is a naturally occurring monosaccharide found in many plants. This compound is for research use only.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Cambridge Isotope Laboratories DIETHYL MALONATE (2-13C, 99%), 0.5 G, 67035-94-3
DIETHYL MALONATE (2-13C, 99%), 0.5 G, 67035-94-3
Cambridge Isotope Laboratories Mono-(2-ethyl-5-hydroxyhexyl)phthalate (DEHP metabolite IX) (unlabeled) 100 ug/mL in MTBE 1 2 mL
Mono-(2-ethyl-5-hydroxyhexyl)phthalate (DEHP metabolite IX) (unlabeled) 100 ug/mL in MTBE 1 2 mL
Medchemexpress LLC Ribitol-3-13C | 488-81-3 | 99.7% | 153.14 g/mol | C4 13C1 H12 O5 | 50 MG
Ribitol-3-13C is a 13C-labeled form of ribitol (adonitol) used as an isotopic tracer and internal standard for metabolic and biochemical analyses. Supplied in analytical pack sizes, the material is accompanied by a datasheet, certificate of analysis, and safety data sheet for lab use.
- 3-13C isotopically labeled ribitol for tracer studies.
- High purity: 99.7%.
- Molecular weight ~153.14 g/mol, molecular formula C4 13C1 H12 O5.
- Suitable for mass spectrometry and NMR applications.
- Provided in small pack sizes for analytical use (e.g., 50 mg).
- Comes with datasheet, certificate of analysis, and safety data sheet.
Cayman Chemical FlufenamIc AcId-d4 500ug
An internal standard for the quantification of flufenamic acid by GC- or LC-MS
Medchemexpress LLC L-Glutamine-1-13C | 159663-16-8 | 147.14 | 5 MG
L-Glutamine-1-13C is the 13C-labeled L-Glutamine. L-Glutamine (L-Glutamic acid 5-amide) is a non-essential amino acid abundantly present 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.
- Purity: 98.0%.
- Appearance: Solid.
- Color: White to off-white.
Medchemexpress LLC L-Leucine-d3 | 87828-86-2 | 134.19 | 5 MG
L-Leucine-d3 is the deuterium labeled L-Leucine, an essential branched-chain amino acid (BCAA) that activates the mTOR signaling pathway. Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during drug development. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer.
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC Banoxantrone-d12 dihydrochloride | 1562066-98-1 | 95.0% | C22H18D12Cl2N4O6 | 10MG
Banoxantrone-d12 dihydrochloride is the deuterium-labeled form of the bioreductive prodrug banoxantrone (AQ4N), supplied as a solid dihydrochloride for research use. It is intended for isotope tracing, mass-shift experiments, metabolic stability, and pharmacokinetic studies, and is provided with ~95% purity (CAS 1562066-98-1).
- Deuterium-labeled for isotope tracing and mass-shift experiments.
- Suitable for metabolic stability and pharmacokinetic studies.
- High purity for reliable analytical and mass spectrometry results.
- Solid dihydrochloride form for convenient handling and storage.
- Well characterized with molecular formula C22H18D12Cl2N4O6 for unambiguous identification.
Medchemexpress LLC Creatinine-d5 | 60-27-5 | MFCD28009754 | 99.9% | 118.15 g/mol | C4H2D5N3O | 10 MG
Creatinine-d5 is a deuterium-labeled internal standard of creatinine used as an analytical reference for isotope-dilution mass spectrometry and other biochemical assays. It provides a stable, isotopically enriched analogue for accurate quantification and method validation in research applications.
- Deuterium-labeled internal standard for LC-MS/MS quantification.
- High isotopic enrichment suitable for analytical accuracy.
- Supplied as a small, stable solid for easy handling and dissolution.
- Intended for research use only; not for human or diagnostic use.
Cayman Chemical RegorafenIb-13C-d3 500ug
An internal standard for the quantification of regorafenib by GC- or LC-MS
Medchemexpress LLC Docetaxel-d5 trihydrate | 812.91 | C43H48D5NO14 | 500 UG
Docetaxel-d5 is a deuterium-labeled analogue of docetaxel intended for use as an internal standard or tracer in analytical workflows, particularly LC-MS/MS assays. It is provided as the trihydrate form with formula C43H48D5NO14 and molecular weight 812.91, packaged in microgram-scale quantities for calibration and quantitation.
- Isotopically labeled (d5) analogue for use as an internal standard.
- Suitable for LC-MS/MS and other mass spectrometry assays.
- Provided as a trihydrate with defined molecular formula and molecular weight.
- Supplied in microgram-scale quantities for assay calibration.
- Intended for research use only; not for human or veterinary use.
Cayman Chemical DIpyrIdamole-d16 5mg
An internal standard for the quantification of dipyridamole by GC- or LC-MS
Cambridge Isotope Laboratories L-Alanine-N-Fmoc (13C3 99% 15N 99%) 1 g
L-Alanine-N-Fmoc (13C3 99% 15N 99%) 1 g
Medchemexpress LLC Navitoclax-d8 | 1217620-38-6 | 99.7% | 982.66 | C47H47D8ClF3N5O6S3 | 1 MG
Navitoclax-d8 is the deuterium-labeled analog of navitoclax (ABT-263), a potent inhibitor of anti-apoptotic Bcl-2 family proteins. Supplied as a 1 mg stable-isotope reference, it is intended for use in mass spectrometry, pharmacokinetic, and mechanistic research where isotopic tracing or internal standards are required.
- Deuterium-labeled (d8) analog for clear mass shift in MS analyses.
- High purity offering reliable analytical performance.
- Suitable as an internal standard for pharmacokinetic studies.
- Supplied in a low-mass format for specialized research applications.
- Stable under recommended storage for long-term use.
Medchemexpress LLC Triclocarban-d4 | 1219799-29-7 | 98.0% | 1 MG
Triclocarban-d4 is the deuterium labeled Triclocarban. Triclocarban (3,4,4′-Trichlorocarbanilide), a broad-spectrum antibacterial compound, is widely used in applications such as the production of soaps, skin creams, toothpastes, and deodorants. It is also identified as a potential endocrine-disrupting chemical that can modulate androgen and estrogen activities, as well as other hormone-mediated biological processes.
- 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 of hydrogen, carbon, and other elements are incorporated into drug molecules, primarily as tracers for quantitation during drug development.
- Deuteration can potentially affect the pharmacokinetic and metabolic profiles of drugs.