Isotopically Labeled Compounds
Cayman Chemical Methotrexate-d3, Purity: ≥99% deuterated forms (d1-d3), CAS: 432545-63-6, 5 mg
An internal standard for the quantification of methotrexate by GC- or LC-MS
Cambridge Isotope Laboratories D-GLUCOSE (3-D1, 97-98%), 0.5 G, 51517-59-0
D-GLUCOSE (3-D1, 97-98%), 0.5 G, 51517-59-0
Medchemexpress LLC Hordenine-d6 | 1346598-66-0 | 98.03% | 171.27 | 1 MG
Hordenine-d6 is a deuterium-labeled variant of Hordenine, an alkaloid naturally occurring in plants. The unlabeled form of Hordenine has been shown to inhibit melanogenesis by suppressing the production of cyclic adenosine monophosphate (cAMP). Deuterium-labeled compounds incorporate stable heavy isotopes of elements like hydrogen and carbon into drug molecules. This labeling technique is primarily used as a tracer for quantitative analysis during drug development, and it has garnered attention for its potential to influence the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer in research applications.
- Serves as an internal standard for quantitative analysis using techniques such as NMR, GC-MS, or LC-MS.
- Incorporation of stable heavy isotopes can affect the pharmacokinetic and metabolic profiles of compounds.
- It is a deuterium labeled compound.
Medchemexpress LLC Diethyl phosphate-d10-1 | 2483831-48-5 | 99.7% | 164.16 | C4HD10O4P | 5 MG
Diethyl phosphate-d10-1 is the deuterium-labeled isotopologue of diethyl phosphate, intended as an analytical reference standard for research and quantitative mass spectrometry. It is supplied as a high-purity liquid suitable for trace-level analyses and isotopic labelling studies.
- Deuterium-labeled internal standard for mass spectrometry.
- High purity: 99.70%.
- Molecular weight 164.16 g/mol.
- Formula C4HD10O4P, suitable for isotopic tracing applications.
- Colorless to light yellow liquid with defined stability and storage conditions.
Revvity Health Sciences Inc Sulfur-35 Radionuclide, 5mCi (185MBq), Specific Activity: 1050-1600Ci (38.8-59.2TBq)/mmol, Sulfuric Acid in 1mL Water
Sulfur-35 Radionuclide, 5mCi (185MBq), Specific Activity: 1050-1600Ci (38.8-59.2TBq)/mmol, Sulfuric Acid in 1mL Water
Medchemexpress LLC Delafloxacin-d5 | 189279-58-1 | 99.8% | 445.79 | 1 MG
Delafloxacin-d5 is a deuterium labeled version of Delafloxacin, a broad-spectrum fluoroquinolone antibiotic. It exhibits activity against drug-resistant bacteria such as Staphylococcus aureus, Streptococcus pneumoniae, and Klebsiella pneumonia.
- Can be used as a tracer
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Glycerol tristearate-d105 | 125941-88-0 | 99.6% | 997.13 g·mol⁻¹ | C57H5D105O6 | 5 MG
Tristearin-d105 is the deuterium-labeled form of tristearin, a triglyceride composed of three stearic acid units. Supplied as a high-purity, isotope-labeled standard, it is intended for research use as a tracer or internal standard in quantitative analyses and for formulation studies involving lipid-based delivery systems.
- Deuterium-labeled triglyceride for tracing studies.
- High purity suitable for quantitative NMR, GC-MS, and LC-MS.
- Suitable as an internal standard for mass spectrometry assays.
- Applicable to solid-lipid nanoparticle formulation research.
- Supplied in small, weighed quantities optimized for analytical workflows.
Cayman Chemical Citalopram-d4 (hydrobromide), Purity: ≥99% deuterated forms (d1-d4), CAS: 1219803-58-3, 1 mg
An internal standard for the quantification of citalopram by GC- or LC-MS
Cayman Chemical Riociguat-13C-d3, Purity: ≥99% deuterated forms (d1-d3), CAS: 2749393-44-8, 1 mg
An internal standard for the quantification of riociguat by GC- or LC-MS
Medchemexpress LLC Normetanephrine-d3 hydrochloride | 1085333-97-6 | 99.9% | 222.68 | 10 MG
Normetanephrine-d3 (hydrochloride) is the deuterium labeled Normetanephrine hydrochloride. Normetanephrine ((±)-Normetanephrine) hydrochloride is the O-methylated metabolite of norepinephrine (NE). It is for research use only.
- 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.
- Deuteration has potential to affect the pharmacokinetic and metabolic profiles of drugs.
Cayman Chemical Cimetidine-d3, Purity: ≥99% deuterated forms (d1-d3), CAS: 1185237-29-9, 1 mg
An internal standard for the quantification of cimetidine by GC- or LC-MS
Medchemexpress LLC Choline-d9 chloride | 61037-86-3 | 99.9% | 50 MG
Choline-d9 (chloride) is the deuterium-labeled form of choline chloride, an organic compound. It functions as a quaternary ammonium salt, an acyl group acceptor, and a choline acetyltransferase substrate. Choline chloride is also utilized as an important feed additive, particularly for chickens, where it promotes growth.
- Used as a tracer.
- Suitable as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuteration can influence the pharmacokinetic and metabolic profiles of pharmaceuticals.
![Revvity Health Sciences Inc Insulin (porcine), Receptor Grade, [<sup>125</sup>I]Tyr<sup>A14</sup>, 50µCi](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812326.jpg-250.jpg)
Revvity Health Sciences Inc Insulin (porcine), Receptor Grade, [125I]TyrA14, 50µCi
Insulin (porcine), Receptor Grade, [125I]TyrA14, 50µCi
Medchemexpress LLC Acetylcholine-d13 bromide | 66-23-9 | 98.6% | 5 MG
Acetylcholine-d13 bromide is a deuterium-labeled form of Acetylcholine bromide. Deuteration can impact the pharmacokinetic and metabolic profiles of drugs. This product is intended for research use only.
- Can be used as a tracer
- Serves as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Contains stable heavy isotopes incorporated into drug molecules for quantitation during drug development
- Deuteration may affect pharmacokinetic and metabolic profiles of drugs