Isotopically Labeled Compounds
Medchemexpress LLC Atovaquone-d4 | 2070015-14-2 | 99.8% | 370.86 | 500 UG
Atovaquone-d4 is a deuterium-labeled Atovaquone, used as a medication to treat or prevent pneumocystis pneumonia, toxoplasmosis, malaria, and babesia. This compound can be utilized as a tracer and an internal standard for quantitative analysis. Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules for quantitation during drug development. Deuteration can affect the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Cambridge Isotope Laboratories VITAMIN D2 (ERGOCALCIFEROL) (6,19,19-D3, 97%) 100 UG/ML IN ETHANOL, 1 ML, 1217448-46-8
VITAMIN D2 (ERGOCALCIFEROL) (6,19,19-D3, 97%) 100 UG/ML IN ETHANOL, 1 ML, 1217448-46-8
Cayman Chemical PAF C-16-d4 1mg
An internal standard for the quantification of PAF C-16 by GC- or LC-MS.
Medchemexpress LLC Nifedipine-d6 | 1188266-14-9 | 98.0% | 352.37 g/mol | C17H12D6N2O6 | 10 MG
Nifedipine-d6 is a deuterium-labeled analogue of nifedipine supplied for analytical and research use. It is used as an internal standard or tracer in quantitative assays (NMR, GC-MS, LC-MS) and in drug metabolism and pharmacokinetic studies, providing consistent isotopic labeling for reliable measurements.
- Deuterium-labeled internal standard for quantitative assays
- Purity 98.0%
- Molecular weight 352.37 g/mol
- Molecular formula C17H12D6N2O6
- CAS number 1188266-14-9
- Storage: powder -20°C (3 years), 4°C (2 years)
Medchemexpress LLC Adenosine-d1 | 109923-50-4 | 99.7% | 268.25 g/mol | C10H12DN5O4 | 10 MG
Deuterium-labeled adenosine used as a tracer or internal standard for quantitative analytical methods such as LC-MS, GC-MS, and NMR. Supplied as a white to off-white solid with high purity and specified storage conditions to maintain stability.
- Deuterium-labeled adenosine for tracer and internal standard use.
- High purity (99.7%) suitable for analytical applications.
- Soluble in DMSO with ultrasonic warming; compatible with LC-MS, GC-MS, and NMR.
- Powder stability: up to 3 years at -20°C; follow solvent storage guidelines for solutions.
Medchemexpress LLC Sulfamethoxazole-d4 | 1020719-86-1 | MFCD03425632 | 98.2% | 257.30 g/mol | C10H7D4N3O3S | 10 MG
Sulfamethoxazole-d4 is a deuterium-labeled analogue of the sulfonamide antibiotic sulfamethoxazole, supplied as a high-purity powder for analytical and tracer applications. Intended as an isotope-labeled internal standard for quantitative LC-MS and related studies; molecular formula C10H7D4N3O3S, molecular weight 257.30 g/mol, CAS 1020719-86-1.
- Deuterium-labeled internal standard for quantitative LC-MS analysis.
- High purity suitable for LC-MS and other analytical methods.
- Powder form for easy dissolution and aliquoting.
- Stable under recommended storage conditions for long-term use.
- Applicable to studies of bacterial folate metabolism and related assays.
Medchemexpress LLC Octadecanoic-d35 acid, 1,2,3-propanetriyl-d5 ester | 33048-69-0 | 99.1% | 10MG
Tristearin-d40 (Octadecanoic-d35 acid, 1,2,3-propanetriyl-d5 ester) is a stable isotope chemical identified by CAS number 33048-69-0. This compound presents as a white to off-white solid with a high purity of 99.12% as determined by HPLC. Its molecular formula is C57D110O6, and it has a molecular weight of 1002.16.
- High purity of 99.12% (HPLC)
- White to off-white solid appearance
- Stable isotope compound for research applications
- Molecular formula C57D110O6
- Molecular weight 1002.16
- Optimal powder storage: -20°C for 3 years; 4°C for 2 years
- Optimal in solvent storage: -80°C for 6 months; -20°C for 1 month
BioVendor, LLC 1,25(OH)2 Vitamin D Extraction Cartridges (42 ct.)
Silica Extraction Cartridges for 1,25(OH)2 Vitamin D Total ELISA (42 ct.) For use with cat. no. RIS021R. Due to low levels and presence of similar metabolites, 1,25(OH)2 Vitamin D measurement requires extraction and separation by chromatography.
Medchemexpress LLC DEHP-d4 (Bis(2-ethylhexyl) phthalate-d4) | 93951-87-2 | 99.9% | 1 MG
DEHP-d4 is the deuterium labeled version of DEHP, an endogenous metabolite. It is primarily used as a tracer and an internal standard for quantitative analysis. This compound is for research use only.
- Used as a tracer
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Incorporates stable heavy isotopes of hydrogen and carbon
- Deuteration can affect the pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC Methyl nicotinate-d4 | 345909-99-1 | 99.5% | 25 MG
Methyl nicotinate-d4 is the deuterium labeled Methyl nicotinate. The non-deuterated Methyl nicotinate, the methyl ester of Niacin, is found in alcoholic beverages and is used as an active ingredient as a rubefacient in over-the-counter topical preparations indicated for muscle and joint pain.
- Can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes, including deuterium, are incorporated into drug molecules as tracers for quantitation during drug development, and deuteration can influence the pharmacokinetic and metabolic profiles of drugs.
- Appearance: solid
- Color: off-white to light yellow
Medchemexpress LLC 1-Bromoeicosane-d41 10mg
1-Bromoeicosane-d41 is the deuterium labeled 1-Bromoicosane[1]
Medchemexpress LLC Oleic acid-d2 (9-cis-octadecenoic acid-d2) | 5711-29-5 | 99.6% | 10 MG
Oleic acid-d2 is the deuterium-labeled form of oleic acid (9-cis-octadecenoic acid) provided as a neat liquid for use as a tracer and internal standard in quantitative NMR, GC-MS, and LC-MS analyses. It is reported to modulate Na+/K+ ATPase activity and is supplied with high isotopic and analytical purity for research applications.
- Deuterium-labeled internal standard for quantitative mass spectrometry and NMR.
- High analytical purity (99.6%).
- Molecular formula C18H32D2O2 and molecular weight 284.47.
- Available in research-scale quantities, including 10 mg vials.
- Colorless to light yellow liquid; density approximately 0.896 g/cm3.
Medchemexpress LLC Betaine-d3 chloride | 1219349-47-9 | 98.6% | 156.63 g/mol | C5H9D3ClNO2 | 10 MG
Betaine-d3 chloride is the deuterium-labeled form of betaine chloride intended for use as an isotopic tracer and internal standard in quantitative NMR, GC-MS, and LC-MS analyses for research applications.
- Deuterium-labeled internal standard for quantitative NMR, GC-MS, and LC-MS.
- Reported purity 98.6%.
- Molecular weight 156.63 g/mol.
- Molecular formula C5H9D3ClNO2.
- Available in a 10 mg package suitable for analytical workflows.
- For research use only; not for human or clinical use.
Medchemexpress LLC Lapatinib-d4 | 1184263-99-7 | 99.0% | 585.08 | C29H22D4ClFN4O4S | 10 MG
Lapatinib-d4 is the deuterium-labeled isotopologue of lapatinib used as a stable isotope standard for analytical and pharmacokinetic studies. It is supplied as a solid powder in pre-weighed quantities with specified storage recommendations for long-term stability.
- Deuterium-labeled internal standard for LC-MS/MS assays.
- High purity (≈99%) suitable for quantitative analysis.
- Offered in small pre-weighed amounts for method development.
- Stable in powder form under low-temperature storage.
- Comes with a product datasheet and safety data sheet for handling.
Medchemexpress LLC L-leucine-5,5,5-d3 | 87828-86-2 | 99.9% | 134.19 g/mol | C6H10D3NO2 | 10 MG
L-leucine-d3 is the deuterium-labeled form of the essential branched-chain amino acid L-leucine, provided as a stable isotope reagent for research applications such as metabolic tracing and mass spectrometry. It features high isotopic enrichment and is for research use only.
- Deuterium labeled at the methyl group (5,5,5-d3).
- High purity, reported as 99.93% (rounded to 99.9%).
- CAS number 87828-86-2 for chemical identification.
- Suitable for use in mass spectrometry and metabolic tracing experiments.
- Available in small research pack sizes, including 10 mg.