Isotopically Labeled Compounds
Medchemexpress LLC Ribitol-2-13C | 98.0% | 153.14 g·mol⁻1 | C4(13C)H12O5 | 50 MG
Ribitol-2-13C is a stable isotope labeled ribitol supplied as a powder for research use as a tracer and internal standard in quantitative analyses by NMR, GC-MS, and LC-MS. The material is provided with a datasheet and certificate of analysis documenting isotopic labeling and analytical purity.
- Stable 13C label at carbon-2 for tracer and metabolic studies.
- Suitable as an internal standard for NMR, GC-MS, and LC-MS quantitation.
- Provided as a powder for straightforward weighing and solution preparation.
- Analytical purity reported by COA: 98.0% (NMR).
- Molecular weight 153.14 g·mol⁻1; formula C4(13C)H12O5.
Medchemexpress LLC L-Serine-N,N,O,1,2,3,3-d7 | 935275-35-7 | 112.14 | 50 MG
L-Serine-d7 is the deuterium-labeled form of L-Serine, a non-essential amino acid crucial for cellular proliferation. This compound is ideal for use in various research applications, particularly as a tracer or internal standard.
- Can be utilized as a tracer in research applications.
- Serves as an internal standard for quantitative analysis using techniques like NMR, GC-MS, or LC-MS.
- Deuterium substitution may influence the pharmacokinetic and metabolic profiles of drugs.
- Boasts a purity of 99.97%.
- Presented as a white to off-white solid.
- Soluble in H2O at 50 mg/mL (445.87 mM), requiring ultrasonic treatment for dissolution.
Medchemexpress LLC L-Glutamine-13C5 | 184161-19-1 | MFCD00144603 | 151.11 | 5 MG
L-Glutamine-13C5 is the 13C-labeled L-Glutamine, a non-essential amino acid present abundantly throughout the body and involved in many metabolic processes. It provides a source of carbons for oxidation in some cells.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Non-essential amino acid.
- Involved in many metabolic processes.
- Provides a source of carbons for oxidation in some cells.
Medchemexpress LLC Heptadecanoic acid-d3 | 202528-95-8 | 273.47 | 1 MG
Heptadecanoic acid-d3 is the deuterium labeled Heptadecanoic acid, an odd chain saturated fatty acid (OCS-FA) associated with various diseases such as coronary heart disease, prediabetes, type 2 diabetes, and multiple sclerosis. This compound is used in research for its unique characteristics:
- It can be employed as a tracer in research applications.
- It serves as an internal standard for quantitative analysis using techniques like NMR, GC-MS, or LC-MS.
- Stable heavy isotopes, including hydrogen and carbon, are incorporated into drug molecules primarily for quantitation during the drug development process.
- Deuteration of drug molecules has been noted for its potential to influence their pharmacokinetic and metabolic profiles.
Medchemexpress LLC Paquinimod-d5-1 | 248282-01-1 | 98.2% | 355.44 g·mol-1 | C21H17D5N2O3 | 5 MG
Paquinimod-d5-1 is a deuterated analog of paquinimod intended for research use as an isotopically labeled reference standard. It serves as an S100A8/S100A9 inhibitor surrogate for analytical, tracer, and pharmacokinetic studies.
- Isotopically labeled (d5) for tracer and mass spectrometry applications.
- High listed purity: 98.2%.
- Molecular weight 355.44 g·mol-1 for accurate dosing and calculations.
- Supplied as a 5 mg solid suitable for small-scale experiments.
- Molecular formula C21H17D5N2O3 with structural identifiers for verification.
![Revvity Health Sciences Inc Propranolol, L-[4-<sup>3</sup>H]-, 250µCi (9.25MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502098379.jpg-250.jpg)
Revvity Health Sciences Inc Propranolol, L-[4-3H]-, 250µCi (9.25MBq)
Propranolol, L-[4-3H]-, 250µCi (9.25MBq)
Cayman Chemical -Ketoprofen-d3 1mg
An internal standard for the quantification of (±)-ketoprofen by GC- or LC-MS
Medchemexpress LLC Azilsartan-d5 (TAK-536-d5) | 1346599-45-8 | 99.4% | 461.48 | 1 ML
Azilsartan-d5 is the deuterium-labeled Azilsartan (TAK-536), a specific and potent angiotensin II type 1 receptor antagonist. This compound can be used as a tracer or as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuterium-labeled Azilsartan
- Specific and potent angiotensin II type 1 receptor antagonist
- 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 FolIc AcId-d4 500ug
An internal standard for the quantification of folic acid by GC- or LC-MS
Cayman Chemical rac-AprepItnt-d4 1mg
An internal standard for the quantification of aprepitant by GC- or LC-MS
Medchemexpress LLC Sarcosine-15N | 99.9% | 90.09 g/mol | C3H715NO2 | 5 MG
Sarcosine-15N is the 15N-labeled isotopologue of sarcosine (N-methylglycine), provided as a high-purity analytical standard for metabolomics, isotopic tracing, and quantitative mass spectrometry. The labeled compound enables accurate internal standardization and tracer studies while retaining the chemical behavior of the native analyte.
- High purity suitable for analytical applications.
- Isotopically enriched 15N for tracer and metabolic studies.
- Compatible with mass spectrometry and NMR as an internal standard.
- Supplied in a small quantity appropriate for method development and reference use.
- Stable solid form with standard storage recommendations for labeled amino acids.
Cayman Chemical Felbamate-d4 1mg
An internal standard for the quantification of felbamate by GC- or LC-MS
