Isotopically Labeled Compounds
Sigma Aldrich Fine Chemicals Biosciences 2 Keto 3 methyl 13C butyr100MG
2 Keto 3 methyl 13C butyr100MG
Cambridge Isotope Laboratories 1,4-DIAMINOBENZENE SULFATE (RING-D4, 98%), 1 G
1,4-DIAMINOBENZENE SULFATE (RING-D4, 98%), 1 G
Cayman Chemical CyclophosphamIde-d4 1mg
An internal standard for the quantification of cyclophosphamide by GC- or LC-MS
Medchemexpress LLC Olaparib (cyclopropylcarbonyl-d4) | 2143107-55-3 | 98.6% | 438.49 g·mol⁻¹ | C24H19D4FN4O3 | 10 MG
Olaparib-d4-1 is a deuterium-labeled isotopologue of Olaparib provided as a stable isotope reference standard for analytical and research use. It is designed for use as an internal standard in LC-MS/MS and quantitative assays, offering consistent labeling and documented characterization to support method development and validation.
- Deuterium-labeled internal standard for mass spectrometry and quantitative assays.
- High purity supports accurate quantitation (98.6%).
- Documented molecular formula and molecular weight for precise calculations.
- Supplied in a 10 mg vial suitable for trace-level analyses.
- Applicable to pharmacokinetic, metabolite, and method validation studies.
Medchemexpress LLC Carfilzomib-d8 | 1537187-53-3 | 98.7% | 727.96 g/mol | C40H49D8N5O7 | 500 UG
Carfilzomib-d8 is a deuterium-labeled analog of carfilzomib, an irreversible proteasome inhibitor used in research. It serves as a tracer and internal standard for quantitative analysis by NMR, GC-MS, and LC-MS, and is suitable for studies of proteasome inhibition in cell models.
- Deuterium-labeled internal standard for quantitative mass spectrometry and NMR.
- Irreversible proteasome inhibitor activity; reported IC50 ≈ 5 nM in ANBL-6 and RPMI 8226 cells.
- Molecular formula C40H49D8N5O7; molecular weight 727.96 g/mol.
- Typical purity around 98.7% (batch dependent).
- Storage: protect from light; in solvent store at -80 °C up to 6 months, -20 °C up to 1 month.
Strem, An Ascensus Company CAS# 144222-34-4. 10g. (1R,2R)-(-)-N-(4-toluenesulfonyl)-1,2-diphenylethylenediamine, 98% (R,R)-TsDPEN. MFCD02093428
CAS# 144222-34-4. 10g. (1R,2R)-(-)-N-(4-toluenesulfonyl)-1,2-diphenylethylenediamine, 98% (R,R)-TsDPEN. MFCD02093428. Molecular Weight: 366.48. Molecular Formula: C21H22N2O2S. Color/form: white xtl. Strem# 07-2371. http://www.strem.com/catalog/v/07-2371/
Cambridge Isotope Laboratories Simazine (unlabeled) 100 ug/mL in acetonitrile 1 2 mL
Simazine (unlabeled) 100 ug/mL in acetonitrile 1 2 mL
![Revvity Health Sciences Inc MK-801, (+)-[3-<sup>3</sup>H]-, 250µCi (9.25MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812389.jpg-250.jpg)
Revvity Health Sciences Inc MK-801, (+)-[3-3H]-, 250µCi (9.25MBq)
MK-801, (+)-[3-3H]-, 250µCi (9.25MBq)
Medchemexpress LLC L-ornithine-d2 hydrochloride | 2483831-42-9 | 99.9% | 170.63 | C5H11D2ClN2O2 | 10 MG
L-ornithine-d2 hydrochloride is the deuterium-labeled hydrochloride salt of L-ornithine, provided as a high-purity stable isotope standard for analytical and biochemical applications. It is designed for use as an internal standard or tracer in mass spectrometry, metabolic studies, and method development where isotopic labeling improves accuracy and quantitation.
- Deuterium-labeled analog for isotope dilution and tracer studies.
- High stated purity for reliable analytical performance.
- Multiple small sizes suitable for research-scale use.
- Stable salt form for straightforward handling and storage.
- Useful for method development, quantitation, and metabolic profiling.
Medchemexpress LLC Glycine-2,2-d2, N-[(1,1-dimethylethoxy)carbonyl]- | 42492-65-9 | MFCD01074012 | 98.0% | 177.19 g/mol | C7H13NO4 | 25mg
Boc-Glycine-d2 is the deuterium labeled Boc-Glycine[1]
Medchemexpress LLC Fmoc-Pro-OH-13C5,15N | 1217452-48-6 | MFCD08702954 | 98.0% | 343.33 | 100 MG
Fmoc-Pro-OH-13C5,15N is a 15N-labeled and 13C-labeled Fmoc-Pro-OH, a proline derivative. 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.
- 15N-labeled and 13C-labeled compound.
- Proline derivative.
- Used as tracers for quantitation during drug development.
- Relevant for studies on pharmacokinetic and metabolic profiles of drugs.
- Targeted for fungal and isotope-labeled compounds.
- Applicable in anti-infection and other pathways.
Medchemexpress LLC Isoquinoline-d7 | 17157-12-9 | 98.04% | 136.21 | 5 MG
Isoquinoline-d7 is the deuterium labeled Isoquinoline. Isoquinoline is an analog of pyridine. Isoquinoline structural-based alkaloids, such as tropoloisoquinoline, phthalideisoquinoline, and naphthylisoquinoline, have anti-cancer activities. It is for research use only and not sold to patients.
- 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 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 Valine-2,3,4,4,4,4',4',4'-d8 | 203784-63-8 | 99.8% | 125.20 | 5 MG
DL-Valine-d8 is the deuterium labeled DL-Valine. 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.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Isotope-labeled compounds
- Internal standard for clinical mass spectrometry
- Internal standard for food
- Isotope-labeled amino acids & peptides
- Deuterium (2H, D)
- SILAC reagents
- Newborn screening
- Isotope-labeled amino acids
Cayman Chemical DesloratdIn-d4 500ug
An internal standard for the quantification of desloratadine by GC- or LC-MS