Isotopically Labeled Compounds
Cayman Chemical CystathIonIn-d4 500ug
An internal standard for the quantification of cystathionine by GC- or LC-MS
Cayman Chemical FluvoxamIn-d4maleate 1mg
An internal standard for the quantification of fluvoxamine by GC- or LC-MS
Medchemexpress LLC Febuxostat-d7 | 1285539-74-3 | MFCD21363616 | 99.1% | 323.42 g/mol | C16H9D7N2O3S | 5 MG
Febuxostat-d7 is a deuterium-labeled analog of febuxostat used as a stable-isotope internal standard for analytical and pharmacokinetic studies. It retains the parent scaffold while providing a defined mass shift for accurate quantitation by LC-MS, GC-MS, and NMR. Supplied as a high-purity research-grade standard (CAS 1285539-74-3; formula C16H9D7N2O3S; MW 323.42).
- High isotopic labeling for reliable mass differentiation.
- Suitable as an internal standard for LC-MS, GC-MS, and NMR quantitation.
- High purity minimizes interference in analytical workflows.
- Stable under recommended storage conditions for reproducible results.
- Intended for research use only; not for human consumption.
Medchemexpress LLC Allopurinol-d2 | 916979-34-5 | 99.4% | 1 MG
Allopurinol-d2 is a deuterium-labeled version of Allopurinol, which is a potent xanthine oxidase inhibitor (IC50 values of 0.2 to 50 μM). It is utilized in research for hyperuricemia, gout, and exhibits antileishmanial effects. Deuterium substitution has been explored for its potential to influence the pharmacokinetic and metabolic profiles of drugs.
- Potent xanthine oxidase inhibitor
- Used for research of hyperuricemia and gout
- Exhibits antileishmanial effect
- Can be used as a tracer for quantitation
- Serves as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
![Revvity Health Sciences Inc L-[<sup>35</sup>S]-Methionine, 5mCi (185MBq), Specific Activity:>1000Ci (37.0TBq)/mmole, 50mM Tricine, 10mM BME](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502809412.jpg-250.jpg)
Revvity Health Sciences Inc L-[35S]-Methionine, 5mCi (185MBq), Specific Activity:>1000Ci (37.0TBq)/mmole, 50mM Tricine, 10mM BME
L-[35S]-Methionine, 5mCi (185MBq), Specific Activity:>1000Ci (37.0TBq)/mmole, 50mM Tricine, 10mM BME
Medchemexpress LLC 1-Undecanol-d23 | 349553-88-4 | 195.45 | 100 MG
1-Undecanol-d23 (Undecyl alcohol-d23) is the deuterium labeled 1-Undecanol. It is the main product generated from the degradation of 2-tridecanone by Pseudomonas bacteria isolated from the soil. This compound can enhance the attraction of Grapholita molesta to sex pheromone traps. Deuterium (2H, D) has the potential to affect the pharmacokinetic and metabolic profiles of drugs.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC 6-Mercaptopurine-13C2,15N | 1190008-04-8 | 96.0% | 155.16 | 1 MG
6-Mercaptopurine-13C2,15N is a 13C- and 15N-labeled version of 6-Mercaptopurine, a purine analogue that functions as an antagonist of endogenous purines and has been widely utilized as an antileukemic and immunosuppressive agent. This labeled compound is intended for research use only and is not sold to patients. Stable heavy isotopes like those in this product have been incorporated into drug molecules for quantitation during drug development, with deuteration specifically noted for its potential impact on pharmacokinetic and metabolic profiles of drugs.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Ponesimod-d7 25mg | 25MG
Ponesimod-d7 (ACT-128800-d7) is the deuterium-labeled Ponesimod (HY-10569) Ponesimod-d7 (ACT-128800) is a potent selective and orally active agonist of S1P1 with an IC50 of 6 nM in a radioligand binding assay Ponesimod-d7 activates S1P1-mediated signal transduction with high potency (EC50 5 7 nM) Ponesimod-d7 can protect against lymphocyte-mediated tissue inflammation[1 [2 [3
Cayman Chemical LaurIc AcId-d23 50mg
An internal standard for the quantification of lauric acid by GC- or LC-MS
Revvity Health Sciences Inc Sulfur-35 Radionuclide, 1mCi (37MBq), Specific Activity: 1050-1600Ci (38.8-59.2TBq)/mmol, Sulfuric Acid in 1mL Water
Sulfur-35 Radionuclide, 1mCi (37MBq), Specific Activity: 1050-1600Ci (38.8-59.2TBq)/mmol, Sulfuric Acid in 1mL Water
Cambridge Isotope Laboratories Diethyl phthalate (ring-D4 98%) 0 25 g
Diethyl phthalate (ring-D4 98%) 0 25 g
Cambridge Isotope Laboratories Modified JIS PCB Alt A Extended Calibration Solution (CS4H) 0 2 mL
Modified JIS PCB Alt A Extended Calibration Solution (CS4H) 0 2 mL
Cambridge Isotope Laboratories Triethyl phosphate (D15 98%) 1 mg/mL in acetonitrile 1 2 mL
Triethyl phosphate (D15 98%) 1 mg/mL in acetonitrile 1 2 mL
