Isotopically Labeled Compounds
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-d4triphenylp
An internal standard for the quantification of (4-carboxybutyl)triphenylphosphonium by GC- or LC-MS
Medchemexpress LLC Flurbiprofen-d5 (dl-flurbiprofen-d5) | 215175-76-1 | 99.8% | 249.29 g·mol⁻¹ | C15H8D5FO2 | 1 MG
Flurbiprofen-d5 (dl-Flurbiprofen-d5) is a deuterium-labeled stable isotope analog of flurbiprofen used as an internal standard for quantitative mass spectrometry and other analytical applications.
- Purity 99.8%.
- Molecular weight 249.29 g·mol⁻¹.
- Chemical formula C15H8D5FO2.
- Isotope labeling d5 (five deuterium atoms).
- Available in small powder packs: 1 mg, 5 mg, 10 mg, 50 mg.
- Storage: powder -20°C (3 years) or 4°C (2 years); in solvent -80°C (6 months).
- Intended for use as an analytical internal standard in mass spectrometry quantification.
Medchemexpress LLC Entacapone-d10 | 1185241-19-3 | 98.6% | C14H5D10N3O5 | 1 MG
Entacapone-d10 is the deuterium-labeled version of Entacapone, a potent, reversible, peripherally acting, and orally active catechol-O-methyltransferase (COMT) inhibitor. It can be used as a tracer and as an internal standard for quantitative analysis.
- Inhibits COMT from rat brain, erythrocytes and liver with IC50 values of 10 nM, 20 nM, and 160 nM.
- Selective for COMT over other catecholamine metabolizing enzymes.
- Can be used for the research of Parkinson's disease.
- Serves as an inhibitor of FTO demethylation with an IC50 of 3.5 μM.
- Can be used for the research of metabolic disorders.
- 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 1-naphthalen-2,3,4,5,6,7,8-d7-ol | 124251-84-9 | MFCD00142671 | 99.4% | 151.21 | C10HD7O | 10mg
1-Naphthol-d7 is the deuterium labeled Naphthol[1]