Isotopically Labeled Compounds
Medchemexpress LLC Spironolactone-d3 | 52-01-7 | 99.82% | 1 MG
Spironolactone-d3 is the deuterium labeled Spironolactone, an orally active aldosterone mineralocorticoid receptor antagonist with an IC50 of 24 nM. It also acts as a potent antagonist of androgen receptor with an IC50 of 77 nM and promotes autophagy in podocytes.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Cambridge Isotope Laboratories URACIL (5,6-D2, 98%), 0.25 G, 24897-52-7
URACIL (5,6-D2, 98%), 0.25 G, 24897-52-7
Medchemexpress LLC Prostaglandin D2-d9 | 2254642-52-7 | 99.0% | 361.52 g/mol | C20H23D9O5 | 100 UG
Prostaglandin D2-d9 is a deuterium-labeled analogue of prostaglandin D2 used as a stable isotope internal standard and tracer for quantitative mass spectrometry and NMR assays. Supplied as a solution (100 μg) for research use, the isotopic label improves accuracy and precision in PGD2 quantification.
- Deuterium-labeled internal standard for LC-MS, GC-MS, and NMR.
- High purity (99.0%) for reliable quantitation.
- Supplied as 100 μg solution in methyl acetate for convenient use.
- Stable under recommended storage: solution -20°C (up to 2 years); stock solutions -80°C (6 months).
- Suitable as a tracer and calibration standard to improve assay accuracy and precision.
Medchemexpress LLC 2,4(1H,3H)-pyrimidinedione-5,6-d2 | 24897-52-7 | 99.9% | 114.10 | C4H2D2N2O2 | 10 MG
Uracil-d2 is the deuterium-labeled analogue of uracil, used as an isotopic standard and tracer in analytical and metabolic studies. It is a white to off-white solid with molecular formula C4H2D2N2O2 and CAS number 24897-52-7.
- Deuterium-labeled for mass spectrometry tracing and isotopic studies.
- High reported purity (≈99.9%).
- Suitable as an internal standard for quantitative assays.
- Supplied in small research quantities appropriate for analytical applications.
- Stable as a powder with recommended cold storage to preserve isotopic integrity.