Isotopically Labeled Compounds
Medchemexpress LLC L-Aspartic acid-15N | 3715-16-0 | 134.10 | 50 MG
L-Aspartic acid-15N is the 15N-labeled version of L-Aspartic acid, an amino acid that can penetrate the blood-brain barrier. It is commonly used for preparing prodrugs to target colon and cecal tissues and in the study of inflammatory conditions.
- Used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Intended for research use only
Cayman Chemical SynthetIc ArbutIn-d4 1mg
An internal standard for the quantification of arbutin by GC- or LC-MS
Medchemexpress LLC L-Hydroxyproline-d3 | 1356016-86-8 | 99.9% | 134.15 | 1 MG
L-Hydroxyproline-d3 is the deuterium labeled L-Hydroxyproline. L-Hydroxyproline, one of the hydroxyproline (Hyp) isomers, is a useful chiral building block in the production of many pharmaceuticals.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Cayman Chemical 3-oxo DeoxycholIc AcId 10mg
A secondary bile acid; a metabolite of deoxycholic acid in C. perfringens
![Revvity Health Sciences Inc Adenosyl-L-Methionine, S-[methyl-<sup>14</sup>C]-, 50µCi (1850kBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502810376.jpg-250.jpg)
Revvity Health Sciences Inc Adenosyl-L-Methionine, S-[methyl-14C]-, 50µCi (1850kBq)
Adenosyl-L-Methionine, S-[methyl-14C]-, 50µCi (1850kBq)
Cambridge Isotope Laboratories Potassium cyanate (13C 99% 15N 98%) CP 95% 0 25 g
Potassium cyanate (13C 99% 15N 98%) CP 95% 0 25 g
![Revvity Health Sciences Inc Deoxy-D-glucose, 2-[1,2-3H(N)], 1 mCi (37 MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/509048341.jpg-250.jpg)
Revvity Health Sciences Inc Deoxy-D-glucose, 2-[1,2-3H(N)], 1 mCi (37 MBq)
Deoxy-D-glucose, 2-[1,2-3H(N)], 1 mCi (37 MBq)
Cayman Chemical NIcorndIl-d4 1mg
An internal standard for the quantification of nicorandil by GC- or LC-MS
Medchemexpress LLC Thiophanat-ethyl-d10 | 1398066-16-4 | 380.51 | C14H8D10N4O4S2 | 10 MG
Thiophanat-ethyl-d10 is the deuterium-labeled isotopologue of thiophanat-ethyl provided for research and analytical applications. Supplied as a solid in a 10 mg quantity, it is intended for use as a stable-isotope internal standard and tracer to support quantitative methods. Consult the product datasheet and safety documentation for handling and storage information.
- Deuterium-labeled (d10) isotopologue suitable as an internal standard.
- Used as a tracer for quantitative NMR, GC-MS, and LC-MS analyses.
- Provided as a solid, convenient for preparation of standards and calibrants.
- Supports accurate quantitation by compensating for matrix effects and instrument variability.
- Intended for research use; follow safety and storage recommendations on the datasheet.
Medchemexpress LLC (R,S)-Norcotinine-d4 | 1020719-70-3 | 166.21 | 1 MG
(R,S)-Norcotinine-d4 is a deuterium labeled compound. 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.
- Target: Isotope-labeled compounds
- Used 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
- For research use only (product has not been fully validated for medical applications)
![eMolecules D-Arabinitol-13C5 | Toronto Research Chemicals |157.108 | C5H12O5O[13CH2][13C@@H](O)[13CH](O)[13C@H](O)[13CH2]O | 50mg | 483380875](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502177349.JPG-250.jpg)
eMolecules D-Arabinitol-13C5 | Toronto Research Chemicals |157.108 | C5H12O5O[13CH2][13C@@H](O)[13CH](O)[13C@H](O)[13CH2]O | 50mg | 483380875
D-Arabinitol-13C5 | Toronto Research Chemicals |157.108 | C5H12O5O[13CH2][13C@@H](O)[13CH](O)[13C@H](O)[13CH2]O | 50mg | 483380875
Medchemexpress LLC Nortriptyline | 72-69-5 | 99.9% | 263.38 | C19H21N | 5 MG
Nortriptyline is a tricyclic antidepressant used as a research chemical and supplied as a high-purity solid for laboratory applications. It is provided in small pack sizes with defined storage conditions to preserve stability.
- High reported purity (99.9%).
- White to off-white solid, suitable for analytical and biological research.
- Molecular weight 263.38 g/mol; CAS number 72-69-5.
- Available in small research pack sizes, including 5 mg.
- Store at 4°C and protect from light; in solvent, store at -80°C (6 months) or -20°C (1 month).
Medchemexpress LLC L-ornithine-d2 hydrochloride | 2483831-42-9 | 99.9% | 170.63 | C5H11D2ClN2O2 | 5 MG
L-ornithine-d2 hydrochloride is the deuterium-labeled form of L-ornithine supplied for research use as an internal standard or tracer in quantitative analyses. It is provided as a high-purity, white to off-white solid hydrochloride salt tailored for analytical workflows such as NMR, GC-MS, and LC-MS.
- Deuterium-labeled internal standard for quantitative analysis.
- High chemical purity (≈99.9%).
- Hydrochloride salt form, solid, white to off-white.
- Suitable for NMR, GC-MS, and LC-MS methods.
- Available in small milligram pack sizes for analytical use.
Cayman Chemical ResolvIn D3 methyl ester 25UG
A methyl ester form of resolvin D3; may act as a lipophilic prodrug form that will alter its distribution and pharmacokinetic properties
Medchemexpress LLC D-Glucose-13C-4 | 40762-22-9 | 98.0% | 1 MG
D-Glucose-13C-4 is the 13C labeled form of D-Glucose. D-Glucose, a monosaccharide, is a significant carbohydrate in biology, serving as a carbohydrate sweetener and a crucial component of general metabolism. It also acts as a critical signaling molecule related to both cellular metabolic status and biotic and abiotic stress responses.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.