Isotopically Labeled Compounds
Sigma Aldrich Fine Chemicals Biosciences 1-Dodecene-1,2-13C2 99 atom % 13C | 198332-88-6 | MFCD01075507 | 100MG
1-Dodecene-1,2-13C2 99 atom % 13C | Purity: 99% (CP) | Mol Wt: 170.3 | 198332-88-6 | MFCD01075507 | 100MG
Sigma Aldrich Fine Chemicals Biosciences Dimethyl sulfoxide-d6 "100%", 99.96 atom % D, contains 0.03 % (v/v) TMS | 2206-27-1 | MFCD00002090 | 5ML
Dimethyl sulfoxide-d6 "100%", 99.96 atom % D, contains 0.03 % (v/v) TMS | Purity: >=99% (CP) | Mol Wt: 84.17 | 2206-27-1 | MFCD00002090 | 5ML
Cayman Chemical DecnoIc AcId-d2 50mg
An internal standard for the quantification of decanoic acid by GC- or LC-MS
Cayman Chemical LaurIc AcId-13C 100mg
An internal standard for the quantification of lauric acid by GC- or LC-MS
Medchemexpress LLC Lusutrombopag-d13 | 1110766-97-6 | 98.6% | 604.63 | 1 MG
Lusutrombopag-d13 is deuterium labeled Lusutrombopag. Lusutrombopag is an orally bioavailable thrombopoietin (TPO) receptor agonist, used for treatment of chronic liver disease.
- 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.
Medchemexpress LLC Clemastine-d5 fumarate | 14976-57-9 | 99.5% | 1 MG
Clemastine-d5 fumarate | 14976-57-9 | 99.5% | 1 MG
Medchemexpress LLC Nortriptyline-d3 hydrochloride | 203784-52-5 | MFCD00198172 | 99.7% | 302.86 g/mol | C19H19D3ClN | 10 MG
Nortriptyline-d3 hydrochloride is a deuterium-labeled internal standard of nortriptyline (desmethylamitriptyline) intended for analytical and research use. It is provided as a white to off-white solid with high isotopic enrichment and suitability for quantitative LC-MS/MS assays, method development, and pharmacokinetic studies.
- Stable-isotope labeled internal standard for mass spectrometry.
- High purity suitable for quantitative analysis.
- Provided as a solid convenient for storage and handling.
- Available in multiple small package sizes for analytical workflows.
- Suitable for method development, validation, and pharmacokinetic studies.
Medchemexpress LLC Oxprenolol-d7 hydrochloride | 1189649-47-5 | 98.3% | 308.85 | C15H17D7ClNO3 | 10 MG
Oxprenolol-d7 hydrochloride is a deuterium-labeled hydrochloride salt of oxprenolol used as an analytical standard and internal standard for LC-MS and other quantitative assays. Supplied at high purity in mg-scale packages, follow recommended cold storage to preserve stability.
- Deuterium-labeled hydrochloride salt for use as an analytical/internal standard.
- High purity (98.25%) for accurate quantitation.
- Available in mg-scale packages to support method development.
- Recommended storage: powder -20°C (3 years) or 4°C (2 years).
- Molecular formula C15H17D7ClNO3 and molecular weight 308.85 for identification.
Medchemexpress LLC D-(+)-xylose-2-13C | 131771-69-2 | 99.9% | 151.12 | C5H10O5 (13C at C-2) | 10 MG
Xylose-2-13C is a 13C-labelled form of D-xylose provided as a solid tracer and analytical standard for metabolic and analytical studies. It is suitable as an internal standard or tracer for NMR, GC-MS, and LC-MS quantitative analyses and can be used in biochemical or microbial fermentation research as a carbon source.
- Contains 10 mg of material.
- Purity 99.89%.
- Isotope labeling: 13C at the 2-position.
- CAS number 131771-69-2.
- Molecular weight 151.12 g/mol.
- Solubility: in DMSO ~50 mg/mL; requires ultrasonic and warming; hygroscopic DMSO affects solubility.
- Storage: store protected from light; in solvent: -80°C for 6 months, -20°C for 1 month.
- Appearance: white to off-white solid.
- Intended uses include tracer studies and use as an internal standard in analytical workflows.
Medchemexpress LLC Trimethoprim-d9 | 1189460-62-5 | 99.6% | 299.37 | C14H9D9N4O3 | 10 MG
Trimethoprim-d9 is a deuterium-labeled analogue of the antibiotic trimethoprim, provided as a research-grade stable isotope standard for analytical and tracer applications. It is intended for laboratory research use only and not for human or veterinary use.
- Deuterium-labeled internal standard for mass spectrometry and tracer studies.
- High chemical purity (99.6%).
- Molecular formula C14H9D9N4O3; molecular weight 299.37 g/mol.
- Supplied in a 10 MG quantity (other pack sizes available).
- Suitable for quantitative analysis and method validation.
Medchemexpress LLC Tolbutamide-d9 | 1219794-57-6 | MFCD06658779 | 99.0% | 279.40 g·mol⁻¹ | C12H9D9N2O3S | 10 MG
Tolbutamide-d9 is the deuterium-labeled analogue of tolbutamide used as an analytical internal standard and tracer for quantitative assays and method development. It is intended for use in LC-MS, GC-MS, NMR, and pharmacokinetic/ADME studies where an isotopically labeled reference improves accuracy and precision.
- Deuterium-labeled internal standard for quantitative LC-MS and GC-MS
- High isotopic and chemical purity for accurate quantitation
- Suitable for pharmacokinetic and ADME studies
- Provided in small analytical pack sizes for trace-level work
- Well characterized for analytical method development and validation
Medchemexpress LLC 9-octadecenoic acid (9z)-, 2,3-dihydroxypropyl-1,1,2,3,3-d5 ester | 565183-24-6 | 99.9% | 10 MG
Monoolein-d5 is a deuterium labeled monoolein with high purity, making it suitable for research applications requiring isotopic labeling. Its structure has been confirmed by 1H NMR and mass spectrometry.
- Purity of 99.9% (HPLC)
- Isotopic enrichment of 99.9%
- Structure confirmed by 1H NMR and MS
- Store at 4°C, sealed, away from moisture and light
- Store in solvent at -80°C for 6 months or -20°C for 1 month