Isotopically Labeled Compounds
Cambridge Isotope Laboratories SODIUM CYANIDE (13C, 99%) 96% CHEMICAL PURITY, 5 G, 57991-39-6
SODIUM CYANIDE (13C, 99%) 96% CHEMICAL PURITY, 5 G, 57991-39-6
Medchemexpress LLC Propofol-d17 β-D-glucuronide | 1683581-05-6 | 98.0% | 371.50 g/mol | C18H9D17O7 | 100 UG
Propofol-d17 β-D-glucuronide is a deuterium-labeled analogue of propofol β-D-glucuronide intended for use as a tracer and internal standard in quantitative analytical methods (NMR, GC-MS, LC-MS). It is provided as a white to off-white solid with high purity and characterized molecular properties, and is soluble in common organic solvents for analytical sample preparation.
- Deuterium-labeled internal standard for quantitative analysis.
- High purity: 98.0%.
- Molecular weight 371.50 g/mol and formula C18H9D17O7.
- Soluble in ethanol, DMF, and DMSO (≥30 mg/mL).
- Available in microgram to milligram pack sizes for analytical use.
- Suitable for use as a tracer in metabolic and pharmacokinetic studies.
- Handle with care: use newly opened DMSO due to hygroscopicity.
Medchemexpress LLC Nortriptyline (desmethylamitriptyline) | 72-69-5 | 99.9% | 263.38 g·mol⁻¹ | C19H21N | 1 ML
Nortriptyline (desmethylamitriptyline) is a tricyclic antidepressant compound supplied as a high-purity research reagent in solution form. This product is provided in DMSO and intended for in vitro and analytical applications; consult the product page and SDS for handling, storage, and safety information.
- High purity suitable for analytical and research use.
- Supplied as a ready-to-use solution in DMSO for convenient dosing.
- Appropriate for use as a pharmacological standard or reference compound.
- Molecular formula and weight are provided for experimental planning.
- For research use only; not for human or clinical use.
Cambridge Isotope Laboratories VITAMIN K2 (MENAQUINONE MK-7) (5,6,7,8-D4, 2-METHYL-D3, 98%), 1 MG
VITAMIN K2 (MENAQUINONE MK-7) (5,6,7,8-D4, 2-METHYL-D3, 98%), 1 MG
![Revvity Health Sciences Inc dCTP, [α-<sup>32</sup>P]- 3000Ci/mmol 10mCi/ml EasyTide, 250 µCi](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812468.jpg-250.jpg)
Revvity Health Sciences Inc dCTP, [α-32P]- 3000Ci/mmol 10mCi/ml EasyTide, 250 µCi
dCTP, [α-32P]- 3000Ci/mmol 10mCi/ml EasyTide, 250 µCi
Medchemexpress LLC Creatinine-d3 | 143827-20-7 | MFCD00190410 | 99.9% | 116.14 | C4H4D3N3O | 10 MG
Creatinine-d3 is a deuterium-labeled form of creatinine used as a tracer and internal standard for quantitative analysis by NMR, GC-MS, and LC-MS. It has molecular formula C4H4D3N3O and a molecular weight of 116.14 g/mol. For research use only.
- Deuterated internal standard for accurate quantitation.
- High isotopic and chemical purity (99.9% by LCMS) for reliable results.
- Compatible with NMR, GC-MS, and LC-MS analytical methods.
- Available in small research pack sizes to support analytical workflows.
Medchemexpress LLC Tempol-d17,15N | 90429-66-6 | 98.4% | 190.34 | C9HD1715NO2 | 10 MG
Tempol-d17,15N is the deuterium- and 15N-labeled analogue of Tempol (4-hydroxy-TEMPO), intended for research use as a stable isotope tracer and quantitative internal standard. The parent nitroxide functions as a superoxide dismutase (SOD)-mimetic that neutralizes reactive oxygen species, and isotopic labeling enables tracer studies and accurate quantitation in analytical workflows.
- Deuterium and 15N labeled for use as a stable isotope tracer.
- Suitable as an internal standard for NMR, GC-MS, and LC-MS quantitation.
- High purity (98.4%) appropriate for analytical applications.
- Acts as an SOD-mimetic nitroxide that neutralizes reactive oxygen species.
- Available in small, weighed quantities for analytical and tracer studies.
Medchemexpress LLC Cefepime-d3 (sulfate) | 107648-78-2 | 99.5% | 581.66 g/mol | C19H23D3N6O9S3 | 1 MG
Cefepime-d3 (sulfate) is a deuterium-labeled analogue of the antibiotic cefepime provided as a small, pre-weighed sulfate salt for analytical and research applications. It is intended for use as an internal standard or tracer in mass spectrometry workflows and method development; not for human or veterinary use.
- Deuterium-labeled internal standard suitable for LC-MS/MS quantitation.
- High purity (99.5%) for reliable analytical performance.
- Supplied in small pre-weighed vials (e.g., 1 mg) for method development.
- Sulfate salt form that matches analyte chemistry.
- Suitable for pharmacokinetic, bioanalysis, and tracer studies.
- Intended for research use only; not for human or veterinary use.
Cambridge Isotope Laboratories 5-ALPHA-DIHYDROTESTOSTERONE 97% CHEMICAL PURITY (2,3,4-13C3,99%) 100 UG/ML IN METHANOL, 1 ML, 1257527-54-0
5-ALPHA-DIHYDROTESTOSTERONE 97% CHEMICAL PURITY (2,3,4-13C3,99%) 100 UG/ML IN METHANOL, 1 ML, 1257527-54-0
Medchemexpress LLC 4-bromoaniline-d4 | 61357-76-4 | 99.9% | 176.05 g/mol | C6H2D4BrN | 100mg
4-Bromoaniline-d4 is a deuterium labeled 4-Bromoaniline