Isotopically Labeled Compounds
Medchemexpress LLC Dopamine-13C,15N hydrochloride | 369656-74-6 | 99.0% | 5 MG
Dopamine-13C,15N (hydrochloride) is the 13C and 15N labeled Dopamine hydrochloride. It is intended for research use only and not for sale to patients. This compound 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, primarily as tracers for quantitation during the drug development process. Deuteration has also garnered attention due to its potential impact on the pharmacokinetic and metabolic profiles of drugs.
- Dopamine-13C,15N (hydrochloride) is the 13C and 15N labeled Dopamine hydrochloride.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Sigma Aldrich Fine Chemicals Biosciences Methanol-d4 99.8 atom D
Methanol-d4 (CD3OD) is a deuterated NMR solvent useful in NMR-based research and analyses. Absolute infrared absorption intensities of CD3OD have been reported between 8000 and 350cm-1.
Sigma Aldrich Fine Chemicals Biosciences L Glutamine 15N2 98 atom250MG
L Glutamine 15N2 98 atom250MG
Medchemexpress LLC Irinotecan-d10 | 718613-28-6 | 596.74 g/mol | C33H28D10N4O6 | 10 MG
Irinotecan-d10 is a deuterium-labeled isotopologue of irinotecan used as an analytical/internal standard in mass spectrometry and related assays. It serves as a research reference for studies involving topoisomerase I inhibition and quantitative bioanalysis.
- Deuterium-labeled (d10) isotopologue for clear mass separation in MS.
- Suitable as an internal standard for LC-MS/MS quantification.
- Provides reliable mass shift for analyte tracking and recovery assessment.
- Supplied as a small-molecule reference for research use only.
- CAS number 718613-28-6 and molecular weight ~596.74 g/mol aid compound identification.
Medchemexpress LLC Thymine-d4 | 200496-79-3 | 98% | 130.14 | 50 MG
Thymine-d4 is the deuterium labeled Thymine, one of the four nucleobases in the nucleic acid of DNA. It can be a target for actions of 5-fluorouracil (5-FU) in cancer treatment.
- 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 incorporated into drug molecules for quantitation during drug development
- Deuteration has potential to affect pharmacokinetic and metabolic profiles of drugs
Cambridge Isotope Laboratories Musk ketone (unlabeled) 100 ug/mL in acetonitrile 1 2 mL
Musk ketone (unlabeled) 100 ug/mL in acetonitrile 1 2 mL
Medchemexpress LLC 1,2-Propylene-d6 carbonate | 202480-74-8 | MFCD00142486 | 98.7% | 108.13 | C4D6O3 | 25 MG
1,2-Propylene-d6 carbonate is the deuterium-labeled analogue of 1,2-propylene carbonate used as a stable-isotope internal standard and tracer for quantitative analysis by NMR, GC-MS, and LC-MS. Deuteration provides isotopic distinction for accurate quantitation in metabolic and analytical studies.
- Deuterium-labeled analogue for isotope-dilution quantitation.
- Suitable as an internal standard for NMR, GC-MS, and LC-MS.
- High purity for reliable analytical results.
- Molecular weight 108.13 and formula C4D6O3.
- Colorless to light yellow liquid physical form.
- Available in small pack sizes for analytical use.
Medchemexpress LLC Haloperidol-d4 | 1189986-59-1 | C21H19D4ClFNO2 | 2.5 MG
Haloperidol-d4 is deuterium labeled haloperidol, which acts as a potent dopamine D2 receptor antagonist. This compound serves as a valuable tool in research.
- Can be used as a tracer.
- Serves as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Potent D2 receptor antagonist.
Cambridge Isotope Laboratories Phenolic Spiking Standard (13C 99%) 10 mL
Phenolic Spiking Standard (13C 99%) 10 mL
Cayman Chemical Docosanoic Acid-d43, Purity: ≥99% deuterated forms (d1-d43), CAS: 29823-26-5, 1 mg
An internal standard for the quantification of docosanoic acid by GC- or LC-MS
Medchemexpress LLC Dodecanoic-1-13C acid | 93639-08-8 | 99.8% | 201.31 | C12H24O2 (1-13C) | 50mg
Lauric acid-13C is the 13C labeled Lauric acid Lauric acid is a middle chain-free fatty acid with strong bactericidal properties The EC50s for P acnes S aureus S epidermidis are 2 6 4 g/mL respectively
Medchemexpress LLC Amitriptyline-d3 hydrochloride | 342611-00-1 | MFCD01073983 | 99.5% | 316.88 g/mol | C20H21D3ClN | 5 MG
Amitriptyline-d3 hydrochloride is a deuterium-labeled analytical standard of the tricyclic antidepressant amitriptyline, provided as the hydrochloride salt for use as an internal standard, tracer, or reference material in LC-MS/MS and other quantitative analytical assays. It is intended for method development, validation, and accurate quantitation where isotopic labeling improves specificity and precision.
- Deuterium-labeled internal standard for mass spectrometry.
- High purity suitable for quantitative analysis (99.5%).
- Supplied as a hydrochloride salt for stability and solubility.
- Molecular weight approximately 316.88 g/mol.
- Pack sizes compatible with analytical workflows and trace-level applications.
![Medchemexpress LLC Phen-2,3,5,6-d4-ol-d, 4,4'-[1-(methyl-d3)ethylidene-2,2,2-d3]bis- | 96210-87-6 | 99.95% | 244.38 | 25 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000385928-logo.png-250.jpg){kind=logo}
Medchemexpress LLC Phen-2,3,5,6-d4-ol-d, 4,4'-[1-(methyl-d3)ethylidene-2,2,2-d3]bis- | 96210-87-6 | 99.95% | 244.38 | 25 MG
Bisphenol A-d16 is the deuterium labeled Bisphenol A. Bisphenol A is a phenolic, organic synthetic compound widely used in the production of polycarbonate plastics and epoxy resins. Bisphenol A is a reproductive, developmental, and systemic toxicant, often classified as an endocrine-disrupting compound (EDC). Bisphenol A is associated with many diseases, including cardiovascular diseases, respiratory diseases, diabetes, kidney diseases, obesity, and reproductive disorders.
- 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.