Isotopically Labeled Compounds
Medchemexpress LLC (rac)-Metanephrine-d3 hydrochloride | 1215507-88-2 | 97.2% | 236.71 | 5 MG
(rac)-Metanephrine-d3 (hydrochloride) is the deuterium labeled (rac)-Metanephrine hydrochloride. Deuteration has the potential to 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.
Medchemexpress LLC 1-bromoundecane-d4 | 1219802-82-0 | 97.0% | 10 MG
1-Bromoundecane-d4 is the deuterium-labeled isotopologue of 1-bromoundecane used as a tracer and an internal standard in analytical chemistry and synthetic applications.
- CAS number 1219802-82-0.
- Molecular weight 239.23 g/mol.
- Chemical formula C11H19D4Br.
- Isotopic label d4 (four deuterium atoms).
- Typical application as tracer or internal standard in mass spectrometry and analytical methods.
- Supplied as a 10 mg packaged solid.
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
Cayman Chemical Arachidic Acid-d2, Purity: ≥99% deuterated forms (d1-d2), CAS: 232600-70-3, 5 mg
An internal standard for the quantification of arachidic acid by GC- or LC-MS
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.
Cayman Chemical (4-Carboxybutyl-d4)triphenylphosphonium (bromide), Purity: ≥99% deuterated forms (d1-d4), CAS: 42932-63-8, 10 mg
An internal standard for the quantification of (4-carboxybutyl)triphenylphosphonium by GC- or LC-MS