Isotopically Labeled Compounds
![Cambridge Isotope Laboratories Glycerol [(OD)3 98%] 5 g](https://assets.fishersci.com/TFS-Assets/CCG/product-images/default.jpg-250.jpg)
Medchemexpress LLC Thymidine-d4 | 347841-67-2 | 246.25 | 1 MG
Thymidine-d4 is a deuterium-labeled version of Thymidine, which acts as a specific precursor for deoxyribonucleic acid. It is employed as a cell synchronizing agent and functions as a DNA synthesis inhibitor, halting cell progression at the G1/S boundary before DNA replication. Stable heavy isotopes like deuterium are integrated into drug molecules primarily as tracers for quantitative analysis during drug development, with deuteration specifically considered for its potential to alter the pharmacokinetic and metabolic profiles of drugs.
- Is the deuterium labeled Thymidine.
- Is a specific precursor of deoxyribonucleic acid.
- Used as a cell synchronizing agent.
- Functions as a DNA synthesis inhibitor.
- Arrests cell at G1/S boundary, prior to DNA replication.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, 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 Butanedioic acid-1,4-13C2 | 79864-95-2 | MFCD00224213 | 99.0% | 120.07 | C4H6O4 | 10 MG
Succinic acid-1,4-13C2 is a stable isotope-labeled form of succinic acid supplied as a white to off-white solid for research and analytical use, including metabolic tracing and mass spectrometry standards. The material is high purity and intended for analytical applications.
- Stable isotope-labeled succinic acid (1,4-13C2) for tracer studies and internal standards.
- High purity (99.0%) suitable for analytical and mass spectrometry applications.
- Supplied as a white to off-white solid for easy handling and storage.
- Suitable for metabolic tracing, quantitation, and method validation.
- Recommended storage: powder at -20°C for long-term stability; short-term storage at 4°C.
Medchemexpress LLC Arabinose-d | 77583-92-7 | 5 MG
Arabinose-d is a deuterium-labeled Arabinose, an endogenous metabolite. Stable heavy isotopes like hydrogen, carbon, and other elements are incorporated into drug molecules for use as tracers in quantifying during drug development. Deuteration is of interest due to its potential impact on 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.
Medchemexpress LLC Resorufin-d6 | 1196157-65-9 | MFCD11656671 | 97.3% | 219.23 | C12HD6NO3 | 1MG
Resorufin-d6 is the deuterium-labeled analog of resorufin, a highly fluorescent pink dye used for fluorescence-based detection of reactive oxygen and nitrogen species (ROS/RNS) and related assays. The isotopically labeled compound is intended for use as an internal standard, tracer, or reference in fluorescence and mass spectrometry workflows, providing mass differentiation while retaining resorufin's photophysical properties.
- Deuterium-labeled for use as an internal standard in analytical assays.
- Highly fluorescent with photophysical properties matching resorufin.
- Enables accurate quantification in fluorescence and mass spectrometry workflows.
- Typical purity reported at about 97.3% per certificate of analysis.
- Stable when stored sealed at low temperature and protected from moisture and light.
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.
Medchemexpress LLC Maxacalcitol-d6 | 2070009-38-8 | C26H36D6O4 | 5 MG
Maxacalcitol-d6 is the deuterated form of Maxacalcitol (22-Oxacalcitriol), a non-calcemic vitamin D3 analog and a VDR ligand of VDR-like receptors. This compound is intended for research use only and is 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
Medchemexpress LLC Malonyl CoA lithium | 108347-84-8 | 98.0% | 1 MG
Malonyl CoA lithium is an inhibitor of carnitine palmitoyl transferase 1 (CPT1). High Malonyl CoA lithium concentrations suppress fatty acid oxidation, while low Malonyl CoA lithium concentrations are permissive for fat oxidation.
- Inhibitor of carnitine palmitoyl transferase 1 (CPT1).
- High concentrations suppress fatty acid oxidation.
- Low concentrations are permissive for fat oxidation.
Cambridge Isotope Laboratories GLYCAN-O27-13C-GAL4 (GALACTOSE-13C6, 99%), 500 PMOL
GLYCAN-O27-13C-GAL4 (GALACTOSE-13C6, 99%), 500 PMOL
eMolecules 203784-63-8 | Medchem Express | DL-Valine-d8 | 10mg | 784544940 | HY-W012889S | MFCD00144194 | 125.197 | C5H11NO2
ChemScene | 3-Bromoquinolin-2-amine | 100mg | 569147739 | CS-W006722 | 36825-31-7 | 223.073 | C9H7BrN2
If you are unable to find the chemical you are looking for, make sure you are logged into your fishersci.com account and click on the following link:
eMolecules Building Block Tool<|a>
Medchemexpress LLC L-Ascorbic-6,6-C-d2 acid | 82977-10-4 | 99.90% | 5 MG
L-Ascorbic acid-d2 is the deuterium-labeled L-Ascorbic acid. This compound acts as an electron donor and is an endogenous antioxidant agent. It selectively inhibits Cav3.2 channels with an IC50 of 6.5 μM and is also a collagen.
- 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 L-Isoleucine-d1 | 127290-60-2 | 132.18 | 25 MG
L-Isoleucine-d is a deuterium-labeled L-Isoleucine, which is a nonpolar hydrophobic and essential amino acid. Deuterium substitution has the 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.
- Has stable heavy isotopes of hydrogen, carbon, and other elements incorporated.
- Appearance: Solid, white to off-white.
- Purity: 99.48%.