Isotopically Labeled Compounds
Cambridge Isotope Laboratories D-GLUCOSE (U-13C6, 99%; 1,2,3,4,5,6,6-D7, 97-98%), 2 G, 201417-01-8
D-GLUCOSE (U-13C6, 99%; 1,2,3,4,5,6,6-D7, 97-98%), 2 G, 201417-01-8
Medchemexpress LLC Ofloxacin-d3 | 1173147-91-5 | 364.39 g/mol | C18H17D3FN3O4 | 10 MG
Ofloxacin-d3 is the deuterium-labeled analogue of the fluoroquinolone antibiotic ofloxacin, supplied for research and analytical applications such as quantitative mass spectrometry and tracer studies. It is intended for research use only and not for human or clinical use.
- Deuterium-labeled internal standard for LC-MS quantitation.
- Chemical formula C18H17D3FN3O4 and molecular weight 364.39 g/mol.
- CAS number 1173147-91-5 for unambiguous identification.
- Available in small research pack sizes, including 10 MG.
- Powder storage: -20°C (stable for up to 3 years); in solvent: short-term storage per supplier guidance.
Cambridge Isotope Laboratories ALPHA-KETOISOVALERIC ACID, SODIUM SALT (3-METHYL-13C, 99%; 3,4,4,4-D4, 98%), 1 G
ALPHA-KETOISOVALERIC ACID, SODIUM SALT (3-METHYL-13C, 99%; 3,4,4,4-D4, 98%), 1 G
Cambridge Isotope Laboratories METHYL IODIDE + COPPER WIRE (13C, 99%; D2, 98%), 5 G
METHYL IODIDE + COPPER WIRE (13C, 99%; D2, 98%), 5 G
Cambridge Isotope Laboratories ALPHA-KETOISOVALERIC ACID, SODIUM SALT (3-METHYL-13C, 99%; 3,4,4,4-D4, 98%), 0.5 G
ALPHA-KETOISOVALERIC ACID, SODIUM SALT (3-METHYL-13C, 99%; 3,4,4,4-D4, 98%), 0.5 G
Medchemexpress LLC Alosetron-d3 hydrochloride | 1189919-71-8 | 99.0% | 333.83 g/mol | C17H16D3ClN4O | 10 MG
Alosetron-d3 hydrochloride is a deuterium-labeled analogue of alosetron supplied as the hydrochloride salt. It is intended for use as an internal standard or tracer in quantitative analytical methods, including LC-MS, GC-MS, and NMR, for research applications.
- Deuterium-labeled internal standard for quantitative analysis.
- Suitable for LC-MS, GC-MS, and NMR methods.
- High purity for analytical consistency.
- Supplied as a hydrochloride salt for improved stability and solubility.
- Provided in milligram quantities appropriate for analytical workflows.
Medchemexpress LLC Enzalutamide-d6 | 1443331-94-9 | 99.9% | 470.47 g/mol | C21H10D6F4N4O2S | 10 MG
Enzalutamide-d6 is a deuterium-labeled analogue of enzalutamide supplied for analytical and research use as a tracer or internal standard in quantitative workflows. The material is provided as a white to off-white solid with a reported molecular weight of 470.47 g/mol and high purity (~99.9%).
- Deuterium-labeled internal standard (d6) for quantitative analysis (NMR, GC-MS, LC-MS).
- Suitable as a tracer for analytical method development and validation.
- Reported androgen receptor antagonist reference activity (IC50 36 nM in LNCaP cells).
- High purity and consistent lot reporting support analytical accuracy.
- Recommended storage: sealed at 4°C; in solvent store at -80°C (up to 6 months) or -20°C (up to 1 month).
- Available in small pack sizes for analytical use, including a 10 mg pack.
Medchemexpress LLC Phenindione-d5 | 70711-53-4 | MFCD00630829 | 99.5% | 227.27 | C15H5D5O2 | 10 MG
Phenindione-d5 is a deuterium-labeled analog of phenindione supplied as a research reagent and internal standard for quantitative analysis. It functions as a vitamin K antagonist and is intended for tracer studies and analytical applications such as LC-MS, GC-MS, and NMR.
- Deuterium-labeled internal standard for quantitative analysis.
- High purity: 99.5%.
- Physical form: white to off-white solid.
- Storage: 4°C sealed; in solvent store at -80°C (6 months) or -20°C (1 month).
- Solubility: DMSO ≥100 mg/mL; water 0.67 mg/mL (requires ultrasonic).
- Packaged amount: 10 mg suitable for analytical use.
Medchemexpress LLC Acetylcholine-d4 (bromide) | 93449-31-1 | 98.0% | 10 MG
Acetylcholine-d4 (bromide) is the deuterium-labeled analogue of acetylcholine bromide supplied for research and analytical use. It serves as an isotopically labeled tracer and internal standard for quantitative assays and is provided as a high-purity solid suitable for spectroscopic and mass-spectrometric workflows.
- isotopically labeled internal standard for quantitative analysis
- compatible with NMR, GC-MS, and LC-MS workflows
- high chemical purity (98.0%) for reliable quantitation
- solid, white to off-white appearance for ease of handling
- stable when stored sealed and protected from moisture; in solvent: -80°C (up to 6 months) or -20°C (up to 1 month)
- intended for research use only
Medchemexpress LLC Pitavastatin-d4-1 sodium | 147511-69-1 | 447.47 | C25H19D4FNNaO4 | 10 MG
Pitavastatin-d4-1 sodium is a deuterium-labelled analogue of pitavastatin sodium intended as an internal standard and tracer for quantitative analytical methods such as LC-MS, GC-MS, and NMR. Supplied as a solid for research use only, it supports method development and accurate quantitation in biological and chemical analyses.
- Deuterium-labeled internal standard for quantitative analysis.
- Suitable for LC-MS, GC-MS, and NMR applications.
- Solid form, supplied as a 10 MG package.
- Molecular weight 447.47 and chemical formula C25H19D4FNNaO4.
- Recommended storage: sealed, away from moisture; in solvent -80°C (up to 6 months) or -20°C (up to 1 month).
Medchemexpress LLC Ranolazine-d3 | 1054624-77-9 | MFCD00864690 | 99.5% | 430.56 | C24H30D3N3O4 | 10 MG
Deuterium-labeled ranolazine (d3) for research use as an analytical tracer and internal standard. The compound inhibits the late inward sodium current (INa) and the rapid delayed rectifier potassium current (IKr), and acts as a partial fatty acid oxidation inhibitor; it is intended for method development and quantitative analysis by NMR, GC-MS, and LC-MS.
- Deuterium-labeled tracer suitable for quantitation and metabolic studies.
- Purity 99.5%.
- Molecular formula C24H30D3N3O4; molecular weight 430.56.
- Soluble ≥100 mg/mL in DMSO for in vitro applications.
- Recommended storage: powder at -20°C (3 years) or 4°C (2 years); in solvent at -80°C (6 months) or -20°C (1 month).
Medchemexpress LLC Ketotifen-d3 fumarate | 1795138-23-6 | 428.52 | C23H20D3NO5S | 10 MG
Ketotifen-d3 fumarate is the deuterium-labeled fumarate salt of ketotifen, provided as a research reagent and stable isotope for analytical applications. It functions as a noncompetitive H1-antihistamine and mast cell stabilizer and is intended for laboratory use only.
- Deuterium-labeled internal standard for LC-MS quantification.
- Fumarate salt form suitable for method development and tracer studies.
- Available in small, precise pack sizes for analytical workflows.
- Intended for research use only; not for clinical or diagnostic use.
Medchemexpress LLC Tropicamide-d3 | 2673270-13-6 | 99.1% | 287.37 g/mol | C17H17D3N2O2 | 10 MG
Tropicamide-d3 is a deuterium-labeled isotopologue of tropicamide supplied for analytical and research use as a high-purity reference standard. It is intended as an internal standard for mass spectrometry and other quantitative assays where isotopic labelling improves accuracy and tracking.
- High purity (99.1%).
- Deuterium-labeled internal standard for analytical mass spectrometry.
- Molecular weight 287.37 g/mol; molecular formula C17H17D3N2O2.
- CAS number 2673270-13-6.
- Soluble in DMSO, ethanol, and DMF.
- Supplied as a small vial (10 mg) suitable for laboratory use.
Medchemexpress LLC Thymidine-d4 | 347841-67-2 | 246.25 | 5 MG
Thymidine-d4 is deuterium-labeled Thymidine. Thymidine is a specific precursor of deoxyribonucleic acid and functions as a cell synchronizing agent. It also acts as a DNA synthesis inhibitor, capable of arresting cells at the G1/S boundary prior to DNA replication. This compound is useful in various analytical and research applications.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis via NMR, GC-MS, or LC-MS
- Deuteration has the potential to influence the pharmacokinetic and metabolic profiles of drugs
- Stable heavy isotopes can serve as tracers for quantitation during drug development
Medchemexpress LLC Thymidine-15N2 | 50-89-5 | MFCD01073532 | 244.22 | 1 MG
Thymidine-15N2 is the 15N labeled Thymidine. Thymidine, a specific precursor of deoxyribonucleic acid, is used as a cell synchronizing agent. Thymidine is a DNA synthesis inhibitor that can arrest cell at G1/S boundary, prior to DNA replication.
- This compound can be used as a tracer.
- This compound 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.