Isotopically Labeled Compounds
Medchemexpress LLC 1,2-dibromoethane-d4 | 22581-63-1 | MFCD00037499 | >98.0% | 191.89 g·mol⁻¹ | C2Br2D4 | 100 MG
1,2-dibromoethane-d4 is the deuterium-labeled analogue of ethylene dibromide supplied as a neat liquid for use as an isotopic reagent, internal standard, or NMR solvent in research and synthetic applications. The product has formula C2Br2D4, CAS 22581-63-1, and a molecular weight of approximately 191.89 g·mol⁻¹. It is provided with high isotopic enrichment and chemical purity for analytical reliability. For research use only, not for human consumption.
- Deuterium-labeled (d4) for isotopic tracing and NMR applications.
- High isotopic enrichment suitable for quantitative analysis.
- Chemical purity typically >98.0% to ensure analytical reliability.
- Useful as an internal standard and reagent in synthesis and spectroscopy.
- Liquid form with formula C2Br2D4 and molecular weight 191.89 g·mol⁻¹.
- Store cold (refrigerated or -20°C recommended) to preserve stability.
Medchemexpress LLC Hexanedioic acid dimethyl ester-d8 | 52089-64-2 | 10mg
Dimethyl adipate-d8 (Hexanedioic acid dimethyl ester-d8) is the deuterium labeled Dimethyl adipate (HY-W015301) Dimethyl adipate is an aliphatic dicarboxylate compound Dimethyl adipate is mainly used as a plasticizer and an intermediate in organic synthesis
Medchemexpress LLC Glycine-d5 | 4896-77-9 | MFCD00064427 | 98.0% | 80.10 | C2D5NO2 | 50mg
Glycine-d5 is the deuterium labeled Glycine Glycine is an inhibitory neurotransmitter in the CNS and also acts as a co-agonist along with glutamate facilitating an excitatory potential at the glutaminergic N-methyl-D-aspartic acid (NMDA) receptors
Cambridge Isotope Laboratories NITROGEN | 29817-79-6 | 1L (15N2, 98%+)
NITROGEN | 29817-79-6 | 1L (15N2, 98%+) *This item is packaged in a Breakseal Flask, one Flask per unit, and there is a fee for each Breakseal Flask. Please add part# NC1714822 to the order for the Breakseal Flask.
Medchemexpress LLC Tristearin-d9 | 285979-76-2 | MFCD01075451 | >=98.0% | 900.54 g/mol | C57H101D9O6 | 5 MG
Tristearin-d9 is the deuterium-labeled form of tristearin, a triglyceride made from three stearic acid units. It is used as a stable isotope-labeled standard in analytical and metabolic research, supporting accurate quantitation and tracing in lipid studies.
- Deuterium-labeled triglyceride for use as an internal standard in analytical methods.
- High isotopic enrichment (≈99 atom % D) and ≥98% chemical purity for reliable quantitation.
- Appropriate for mass spectrometry and lipid metabolism tracing studies.
- Supplied in a research-scale quantity suitable for method development.
- Stable under typical storage conditions; follow provided handling instructions and documentation.
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.
Revvity Health Sciences Inc Phosphorus-32 Radionuclide, 2mCi (74MBq), Specific Activity: 900-1100mCi (33.3-40.7GBq)/mmol, Monopotassium Phosphate In 1mL Water
Phosphorus-32 Radionuclide, 2mCi (74MBq), Specific Activity: 900-1100mCi (33.3-40.7GBq)/mmol, Monopotassium Phosphate In 1mL Water
Cayman Chemical Sulfamethoxazole-d4, Purity: ≥99% deuterated forms (d1-d4); ≤1% d0, CAS: 1020719-86-1, 10 mg
An internal standard for the quantification of sulfamethoxazole by GC- or LC-MS
Cayman Chemical Difloxacin-d3, Purity: ≥99% deuterated forms (d1-d3), CAS: 1173147-93-7, 1 mg
An internal standard for the quantification of difloxacin by GC- or LC-MS
Medchemexpress LLC DEHP-d4 (Bis(2-ethylhexyl) phthalate-d4) | 93951-87-2 | MFCD00143759 | 99.9% | 1 ML
DEHP-d4 is a deuterium-labeled variant of Bis(2-ethylhexyl) phthalate (DEHP), an endogenous metabolite. This compound is intended for research purposes, specifically as a tracer or an internal standard for quantitative analysis through methods such as NMR, GC-MS, or LC-MS. Deuterium substitution in drug molecules has been noted for its potential to alter pharmacokinetic and metabolic profiles.
Features and Benefits:
- Used as a tracer.
- Serves as an internal standard for quantitative analysis.
- Applicable in NMR, GC-MS, or LC-MS analysis.
- Deuterium labeling can impact pharmacokinetic and metabolic profiles.
- High purity of 99.9%.
Medchemexpress LLC Salcaprozate-d4 sodium | 203787-91-1 | 99.7% | 305.34 | 2 MG
Salcaprozate-d4 (sodium) is a deuterated labeled Salcaprozate (sodium). Salcaprozate sodium (SNAC) is an oral absorption promoter and has potential as a delivery agent for oral forms of heparin and insulin. It can increase passive transcellular permeation across small intestinal epithelia due to increased lipophilicity arising from non-covalent macromolecule complexation.
- Used as a tracer.
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Shows no toxicity to Caco-2 cells at certain concentrations.
- Improves apparent permeability coefficient of RA and SA-B.
- Improves oral absorption of R1 and SAs and enhances bioavailability in rats.
Medchemexpress LLC D-Fructose-d4 | 478518-49-9 | 1 MG
D-Fructose-d4 is the deuterium-labeled form of D-Fructose, a naturally occurring monosaccharide found in many plants.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Dexpramipexole-d3 dihydrochloride | 1432230-09-5 | 287.27 | 1 MG
Dexpramipexole-d3 dihydrochloride is a deuterium-labeled version of Dexpramipexole. It is a neuroprotective agent and a weak non-ergoline dopamine agonist.
- 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 are incorporated into the molecule.
- Potential to affect pharmacokinetic and metabolic profiles.
Medchemexpress LLC Bromoethanol-d4 | 81764-55-8 | C2HD4BrO | 250 MG
Bromoethanol-d4 is the deuterium labeled Bromoethanol. It can be used as a tracer and 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.
- Used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Potential to affect pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC Levomefolic acid-13C,d3 | 1356019-94-7 | 98.4% | 463.47 | 1 MG
Levomefolic acid-13C,d3 is a deuterium-labeled form of Levomefolic acid (5-MTHF), a natural, orally active, and brain-penetrant active form of folic acid used as a food supplement. It is intended for research use only. The incorporation of stable heavy isotopes, like deuterium, into drug molecules is primarily for quantitation tracing during drug development.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS