Isotopically Labeled Compounds
Medchemexpress LLC L-asparagine-13C4,15N2 monohydrate | 202406-87-9 | 98.0% | 156.0906 g/mol | C4H10N2O4 | 1 MG
L-asparagine-13C4,15N2 monohydrate is an isotopically labeled amino acid supplied as a monohydrate for use as an internal standard and tracer in analytical chemistry and metabolic studies. It provides a defined mass shift for accurate quantitation and pathway tracing in mass spectrometry workflows.
- Isotopically labeled for metabolic tracing and mass spectrometry.
- Monohydrate solid form for easy handling and dissolution.
- High purity (98.0%) suitable for analytical standards.
- Available in small milligram quantities for method development.
- Stable under recommended storage; stock solutions stable at -80°C for extended periods.
Medchemexpress LLC Flurbiprofen-d3 10mg | 1185133-81-6 | 10MG
Flurbiprofen-d3 is the deuterium labeled Flurbiprofen Flurbiprofen (dl-Flurbiprofen) is a potent orally active nonsteroidal anti-inflammatory agent (NSAIA/NSAID) with antipyretic and analgesic activities Flurbiprofen is commonly used for the research of inflammatory diseases including osteoarthritis and rheumatoid arthritis Flurbiprofen is a non-selective cyclooxygenase (COX) inhibitor that can be used for the research of colorectal cancer[1 [2 [3
Medchemexpress LLC 3,3,3-trideuterio-2-(3-fluoro-4-phenylphenyl)propanoic acid | 1185133-81-6 | MFCD09840635 | 99.9% | 247.28 g/mol | C15H10D3FO2 | 1 MG
Flurbiprofen-d3 is a deuterium-labeled analogue of flurbiprofen supplied as an isotopically labeled reference standard for analytical and research use. It is used primarily as an internal standard to enable accurate quantitation in mass spectrometry-based assays and bioanalytical method development.
- Isotopically labeled internal standard for quantitative mass spectrometry.
- High chemical and isotopic purity for reliable assay performance.
- Suitable for LC-MS/MS and GC-MS bioanalytical workflows.
- Applicable to pharmacokinetic and metabolic studies.
- Provided as a stable solid with batch-specific documentation.
American Radiolabeled Chemicals Inc INOSITOL MYO-3H 1LC
Inositol, myo-1,2-3H(N) 1mCi in ethanol:water (9:1), 1 mCi/ml, S.A 30-80 Ci/mmol, M.W. 180.2
American Radiolabeled Chemicals Inc RETINYL PALM-1-14C 50UC
Retinyl palmitate-palmitoyl-1-14C 50uCi in toluene, 0.1 mCi/ml, S.A. 50-60 mCi/mmol, M.W. 524.9, Shipped in Dry Ice, Exclusive
American Radiolabeled Chemicals Inc Pitavastatin CA-3H 50UC
Pitavastatin calcium-3H(G) 50uCi in ethanol:water (1:1), 1 mCi/ml, S.A. 1-5 Ci/mmol, M.W.880.98, Shipped in Dry Ice, Exclusive
Medchemexpress LLC Prostaglandin D2-d4 | 211105-29-2 | 98.8% | 356.49 | C20H28D4O5 | 50 UG
Prostaglandin D2-d4 is a deuterium-labeled analogue of prostaglandin D2 supplied as a solution in methyl acetate for use as an internal standard in GC- or LC-MS assays. It is intended for research use to support accurate quantification of PGD2 in biological samples and analytical workflows.
- Deuterium-labeled internal standard for PGD2 quantification by GC- or LC-MS.
- High chemical purity (98.8%) for reliable analytical performance.
- Supplied as a microgram-scale solution suitable for trace-level analyses.
- Stable when stored at -20°C for up to two years.
- Molecular formula C20H28D4O5 and molecular weight 356.49 aid compound identification.
![Revvity Health Sciences Inc Uridine, [5,6-<sup>3</sup>H]-,>97%, 250µCi (9.25MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812310.jpg-250.jpg)
Revvity Health Sciences Inc Uridine, [5,6-3H]-,>97%, 250µCi (9.25MBq)
Uridine, [5,6-3H]-,>97%, 250µCi (9.25MBq)
![Revvity Health Sciences Inc Methionine, Cell Labeling Grade, L-[35S]-,>600 Ci (22.2 TBq)/mmol, 50 mM Tricine, 10 mM BME, 10 mCi](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812388.jpg-250.jpg)
Revvity Health Sciences Inc Methionine, Cell Labeling Grade, L-[35S]-,>600 Ci (22.2 TBq)/mmol, 50 mM Tricine, 10 mM BME, 10 mCi
Methionine, Cell Labeling Grade, L-[35S]-,>600 Ci (22.2 TBq)/mmol, 50 mM Tricine, 10 mM BME, 10 mCi
Medchemexpress LLC Carazolol-d7 10mg | 1173021-02-7 | 10MG
Carazolol-d7 is the deuterium labeled Carazolol (HY-107327) Carazolol is a highly potent antagonist of 1/ 2 adrenoceptor Carazolol is also a potent selective 3-adrenoceptor agonist Carazolol can be used in the research of hypertension[1
![Revvity Health Sciences Inc Angiotensin I (human), [<sup>125</sup>I]Tyr<sup>4</sup>-, 10 µCi (370 kBq), Species Activity: 2200 Ci/mmol (81.4TBq/mmol)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812212.jpg-250.jpg)
Revvity Health Sciences Inc Angiotensin I (human), [125I]Tyr4-, 10 µCi (370 kBq), Species Activity: 2200 Ci/mmol (81.4TBq/mmol)
Angiotensin I (human), [125I]Tyr4-, 10 µCi (370 kBq), Species Activity: 2200 Ci/mmol (81.4TBq/mmol)
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 Octanedioic-2,2,3,3,4,4,5,5,6,6,7,7-d12 acid | 169397-99-3 | 98.6% | 186.27 g/mol | C8H2D12O4 | 100 MG
Suberic acid-d12 is the deuterium-labeled isotopologue of suberic (octanedioic) acid supplied for use as an internal standard, tracer, or reagent in metabolic, biochemical, and mass spectrometry studies of fatty acid metabolism and related enzyme deficiencies.
- Deuterium-labeled tracer for accurate quantitation by mass spectrometry.
- High chemical purity (98.6%).
- Known molecular weight and formula for analytical reference: 186.27 g/mol, C8H2D12O4.
- Multiple pack sizes available to support method development and scaling.
- Storage recommendations provided for powder and solution to preserve stability.
Medchemexpress LLC Decanoic acid-d5 | 1219803-00-5 | MFCD01317497 | 98.3% | 177.30 | C10H15D5O2 | 10 MG
Decanoic acid-d5 is the deuterium-labeled analogue of decanoic acid, provided as a high-purity stable isotope reagent for analytical and biological research. It serves as an internal standard, tracer, or reference compound in mass spectrometry and metabolic studies, enabling confident identification and quantification through a predictable mass shift.
- High isotopic labeling (D5) for clear mass separation.
- High purity (98.3%) suitable for analytical workflows.
- Compact research-scale quantity for easy storage and handling.
- Soluble in DMSO at high concentration for convenient stock solutions.
- Stable under recommended storage conditions for long-term use.
- Suitable as an internal standard in mass spectrometry and tracer studies.
Medchemexpress LLC Leukotriene B4-d4 10ug | 124629-74-9 | 10UG
Leukotriene B4-d4 is the deuterium labeled Leukotriene B4 Leukotriene B4 (LTB4) is known as one of the most potent chemoattractants and activators of leukocytes and is involved in inflammatory diseases Leukotriene B4 is also an alkyl chain-based PROTAC linker that can be used in the synthesis of PROTACs[1 [2 [3