Isotopically Labeled Compounds
Sigma Aldrich Fine Chemicals Biosciences Dimethyl sulfoxide-d6 99.9 atom % D, contains 0.03 % (v/v) TMS | 2206-27-1 | MFCD00002090 | 50G
Dimethyl sulfoxide-d6 99.9 atom % D, contains 0.03 % (v/v) TMS | Purity: 99% (CP) | Mol Wt: 84.17 | 2206-27-1 | MFCD00002090 | 50G
Medchemexpress LLC Betaine-d9 chloride | 285979-85-3 | 162.66 | 25 MG
Betaine-d9 chloride is a deuterium labeled Betaine chloride intended for research use only.
- 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 for quantitation during drug development.
- Deuteration has the potential to affect pharmacokinetic and metabolic profiles of drugs.
- Purity of 99.66%.
- Appears as a white to off-white solid.
- Recommended storage at 4°C, sealed, away from moisture.
- For solutions, store at -80°C for 6 months or -20°C for 1 month, sealed and away from moisture.
Revvity Health Sciences Inc Phosphorus-32 Radionuclide, 10mCi (370MBq), Specific Activity: 8500-9120Ci (314-337TBq)/mmol, Orthophosphoric Acid in 1mL Water
Phosphorus-32 Radionuclide, 10mCi (370MBq), Specific Activity: 8500-9120Ci (314-337TBq)/mmol, Orthophosphoric Acid in 1mL Water
Medchemexpress LLC 666-15 | 1433286-70-4 | MFCD30182343 | 99.8% | 620.52 g/mol | C33H31Cl2N3O5 | 1 MG
A potent, selective CREB inhibitor with an IC50 of 81 nM that has been reported to suppress tumor growth in breast cancer xenograft models. Supplied as a high-purity solid, the compound is provided for research use with defined storage and stability recommendations.
- Potent, selective CREB inhibition with IC50 = 81 nM.
- Demonstrated tumor growth suppression in breast cancer xenograft models.
- High purity, approximately 99.8%.
- Chemical formula C33H31Cl2N3O5; molecular weight 620.52 g/mol.
- White to off-white solid; store solid at 4°C and store solutions at -80°C for long-term stability.
- Supplied in milligram-scale quantities suitable for laboratory research.
Medchemexpress LLC Difloxacin-d3 hydrochloride | 1173021-89-0 | 99.0% | 10 MG
Difloxacin-d3 hydrochloride is a deuterium-labeled hydrochloride salt of difloxacin, provided as an isotopically labeled reference standard for analytical and research applications. It is supplied as a high-purity white to off-white solid suitable for use as an internal standard in mass spectrometry and quantitative assays.
- Deuterium-labeled internal standard for analytical assays.
- Hydrochloride salt, white to off-white solid.
- Purity 99.0%.
- Molecular weight 438.87 g/mol.
- Chemical formula C21H17D3ClF2N3O3.
- Available in small milligram quantities for research use.
- Store sealed, away from moisture and light; in solvent: -80°C (6 months), -20°C (1 month).
Medchemexpress LLC Valproic acid-d4 10mg | 87745-17-3 | 10MG
Valproic acid-d4 is the deuterium labeled Valproic acid Valproic acid (VPA 2-Propylpentanoic Acid) is an HDAC inhibitor with IC50 in the range of 0 5 and 2 mM also inhibits HDAC1 (IC50 400 M) and induces proteasomal degradation of HDAC2 Valproic acid activates Notch1 signaling and inhibits proliferation in small cell lung cancer (SCLC) cells Valproic acid sodium salt is used in the treatment of epilepsy bipolar disorder and prevention of migraine headaches[1 [2
Medchemexpress LLC Decanoic acid-d19 | 88170-22-3 | 98.4% | 191.38 g/mol | C10HD19O2 | 50 MG
Decanoic acid-d19 is the deuterium-labeled form of decanoic (capric) acid (C10HD19O2, MW 191.38 g/mol). It is supplied as a high-purity, isotope-labeled reagent for analytical and research applications including mass spectrometry, metabolic tracing, and method development.
- Deuterium-labeled decanoic acid for stable isotope experiments.
- High isotopic enrichment and purity (98.4%).
- Suitable as an internal standard for mass spectrometry.
- Provided with certificate of analysis and safety data for traceability.
- Available in small pack sizes for analytical workflows.
Medchemexpress LLC Isobutylparaben-d4 | 1219805-33-0 | 98.5% | 198.25 g/mol | C11H10D4O3 | 1 MG
Isobutylparaben-d4 is the deuterium-labeled analogue of isobutylparaben used as a stable isotope internal standard for analytical and research applications. It is provided as a high-purity, fully characterized material designed to support quantitative mass spectrometry, method development, and calibration workflows.
- High isotopic enrichment for accurate internal standardization.
- High purity suitable for quantitative analytical use.
- Optimized for mass spectrometry and chromatographic methods.
- Supplied in measured small quantities for standards preparation.
- Certificate of analysis documents purity and isotopic enrichment.
Medchemexpress LLC D-Erythrose-4-13C 5mg | 90913-08-9 | 121.10 g/mol | C3(13C)H8O4 | 5 MG
D-Erythrose-4-13C is the 13C-labeled form of D-erythrose supplied as a solution in water for research use. It serves as a tracer and internal standard for quantitative analysis by NMR, GC-MS, and LC-MS.
- 13C-labeled D-erythrose for tracer and quantitation
- Supplied as a solution in water at a defined concentration (0.107 M for listed sizes)
- Available in small, pre-measured sizes suitable for analytical workflows (5 mg, 10 mg, 25 mg)
- Molecular formula C3(13C)H8O4; molecular weight 121.10 g/mol
- Intended for research use only
Medchemexpress LLC L-Glutamine-1-13C (L-Glutamic acid 5-amide-1-13C) | 159663-16-8 | 147.14 | 1 MG
L-Glutamine-1-13C is the 13C-labeled L-Glutamine. L-Glutamine, also known as L-Glutamic acid 5-amide, is a non-essential amino acid abundant 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.
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes can be incorporated into drug molecules as tracers for quantitation during drug development.
Medchemexpress LLC Pazopanib-d6 | 1219592-01-4 | MFCD11110377 | 98.0% | 443.55 g/mol | C21H17D6N7O2S | 1 MG
Pazopanib-d6 is the deuterium-labeled analogue of pazopanib supplied as a research reagent for use as an internal standard in analytical and pharmacokinetic studies. The material is provided as a small weighed quantity of dry powder and should be stored under recommended cold conditions.
- Deuterium-labeled internal standard suitable for LC-MS/MS and PK assays
- High purity (98.0%) for reliable quantitative analysis
- Chemical formula C21H17D6N7O2S and molecular weight 443.55 g/mol
- Available in small weighed quantities for analytical workflows
- Store powder at -20°C for long-term stability
Medchemexpress LLC Regorafenib-d3 (BAY 73-4506-d3) | 1255386-16-3 | MFCD22380808 | 98.0% | 485.83 g·mol⁻¹ | C21H12D3ClF4N4O3 | 10 MG
Regorafenib-d3 is a deuterium-labeled analog of regorafenib supplied for use as a tracer and internal standard in quantitative analytical methods including LC-MS, GC-MS, and NMR. It is provided as a powder designed for method development, isotope-dilution assays, and pharmacokinetic studies.
- Deuterium-labeled internal standard for quantitative analysis
- Suitable for LC-MS, GC-MS, and NMR applications
- Supplied as a 10 mg powder
- High chemical purity (98.0%)
- Molecular weight 485.83 g·mol⁻¹; molecular formula C21H12D3ClF4N4O3
- Recommended storage: powder -20°C; in solvent -80°C for 6 months or -20°C for 1 month
Medchemexpress LLC L-Kynurenine-d4-1 hy 5mg | 5MG
L-Kynurenine-d4-1 hydrochloride is the deuterium labeled L-Kynurenine (HY-104026) L-Kynurenine is a metabolite of the amino acid L-tryptophan L-Kynurenine is an aryl hydrocarbon receptor agonist[1 [2
Medchemexpress LLC Bromocyclohexane-d11 | 35558-49-7 | MFCD00190385 | 98.1% | 174.12 g/mol | C6D11Br | 25 MG
Bromocyclohexane-d11 is the deuterium-labeled isotopologue of bromocyclohexane, provided as a liquid research reagent. It is used as an internal standard and tracer in mass spectrometry, isotopic labeling, and mechanistic studies, offering reliable isotopic enrichment and chemical purity for quantitative analyses.
- Deuterium-labeled reagent suitable for mass spectrometry internal standards.
- High isotopic enrichment and chemical purity for accurate quantitation.
- Liquid form simplifies handling and solution preparation.
- Applicable to tracer and mechanistic studies in synthetic and analytical chemistry.
- Characterized with molecular formula C6D11Br and molecular weight 174.12 g/mol.
- Supplied with purity and documentation to support experimental use.
![Revvity Health Sciences Inc α-[1-<sup>14</sup>C]-Methylaminoisobutyric Acid,>97%, 250µCi (1.85MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502810789.jpg-250.jpg)
Revvity Health Sciences Inc α-[1-14C]-Methylaminoisobutyric Acid,>97%, 250µCi (1.85MBq)
α-[1-14C]-Methylaminoisobutyric Acid,>97%, 250µCi (1.85MBq)