Isotopically Labeled Compounds
Cayman Chemical Darifenacin-d4, Purity: ≥99% deuterated forms (d1-d4), CAS: 1189701-43-6, 10 mg
An internal standard for the quantification of darifenacin by GC- or LC-MS
Medchemexpress LLC Alfuzosin-d3 | 1006724-55-5 | 99.9% | 1 MG
Alfuzosin-d3 is deuterium labeled Alfuzosin. This compound can be used as a tracer and as an internal standard for quantitative analysis. Deuteration has gained attention because of its 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
- Stable heavy isotopes incorporated into drug molecules
- Potential to affect pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC L-Methionine-DL-sulfoximine | 15985-39-4 | 98.0% | 1 G
L-Methionine-DL-sulfoximine (MSX; MSO) is a highly specific and irreversible inhibitor of Glutamine synthetase (GS). It acts as a potent convulsant, primarily affecting astroglia metabolically and morphologically. This compound has been utilized to inhibit Gln-dependent ammonia-stimulated neuronal toxicity in vitro and significantly increases the release rate of fixed nitrogen in cyanobacteria. It is considered a promising candidate for research in biofertilizers and convulsive seizures (CS).
- Highly specific and irreversible inhibitor of glutamine synthetase.
- Potent convulsant affecting astroglia.
- Inhibits Gln-dependent ammonia-stimulated neuronal toxicity in vitro.
- Increases release rate of fixed nitrogen in cyanobacteria.
- Potential for research in biofertilizers and convulsive seizures.
Cambridge Isotope Laboratories 2 2 2-Trifluoroethanol-D3 (D 99%) 1 g
2 2 2-Trifluoroethanol-D3 (D 99%) 1 g
Cambridge Isotope Laboratories Gemfibrozil (2 2-dimethyl-D6 98%) 100 ug/mL in dioxane 1 2 mL
Gemfibrozil (2 2-dimethyl-D6 98%) 100 ug/mL in dioxane 1 2 mL
Cambridge Isotope Laboratories Monoisobutyl phthalate (unlabeled) 100 ug/mL in MTBE 1 2 mL
Monoisobutyl phthalate (unlabeled) 100 ug/mL in MTBE 1 2 mL
Cayman Chemical Stearic Acid-13C, Purity: ≥95%, CAS: 85541-42-0, 500 mg
An internal standard for the quantification of stearic acid by GC- or LC-MS
Medchemexpress LLC Fmoc-Gly-OH-13C2,15N | 285978-13-4 | 99.6% | 300.28 | C15(13C2)H15(15N)NO4 | 5mg
Fmoc-Gly-OH-13C2 15N (Fmoc glycine-13C2 15N) is a 15N-labeled and 13C-labled Fmoc-Gly-OH (HY-Y1250) Fmoc-Gly-OH (Fmoc glycine) is a Fmoc-protected glycine derivative can be used for the synthesis of compounds[1]
![Revvity Health Sciences Inc CTP, [α-<sup>32</sup>P]- 3000Ci/mmol 10mCi/ml EasyTide, 250 µCi](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502809224.jpg-250.jpg)
Revvity Health Sciences Inc CTP, [α-32P]- 3000Ci/mmol 10mCi/ml EasyTide, 250 µCi
CTP, [α-32P]- 3000Ci/mmol 10mCi/ml EasyTide, 250 µCi
Medchemexpress LLC Puromycin-d3 | 98.2% | 10 MG
Puromycin-d3 is a deuterium-labeled analogue of puromycin used as a labeled standard and tracer in biochemical research and mass spectrometry applications. The deuterated isotopologue enables accurate quantitation and tracking in proteomics and metabolism studies.
- Deuterium-labeled puromycin (d3) for use as an internal standard in mass spectrometry and tracer studies.
- Aminoglycoside antibiotic that inhibits protein synthesis, useful for translation and inhibitor assays.
- Molecular formula C22H26D3N7O5; molecular weight 474.53 g/mol.
- Purity 98.2% as supplied by the manufacturer.
- Supplied as a powder, typically in 10 mg vials; store at -20°C for long-term stability.
Medchemexpress LLC D-ribose-13C | 70849-24-0 | MFCD00064325 | 99.9% | 151.12 g·mol⁻¹ | C4(13C)H10O5 | 10 MG
D-Ribose-13C is a carbon-13 labeled D-ribose supplied as a high-purity stable isotope tracer for metabolic tracing, isotopic labeling, and metabolomics/proteomics research. It is provided as a white to off-white solid (CAS 70849-24-0), with molecular formula C4(13C)H10O5 and molecular weight 151.12 g·mol⁻1.
- High chemical purity (99.93%).
- Single-site 13C labeling for precise tracing studies.
- Suitable for metabolic flux analysis and nucleotide and ribonucleoside labeling.
- Provided as a solid for easy storage and handling.
- Available in small research pack sizes for labeling experiments.
Cayman Chemical Cytosine-13C,15N2, Purity: ≥98%, CAS: 181517-10-2, 10 mg
An internal standard for the quantification of cytosine by GC- or LC-MS
Medchemexpress LLC D-Xylulose-1-13C | 131771-46-5 | 99.2% | 151.12 | 10 MG
D-Xylulose-1-13C is a 13C labeled form of D-Xylulose, which serves as a precursor to the pentiol D-arabi. Stable heavy isotopes, such as those of hydrogen, carbon, and other elements, are frequently integrated into drug molecules to act as tracers for quantitative analysis during drug development. Deuteration, in particular, has garnered attention due to its potential to influence the pharmacokinetic and metabolic profiles of drugs.
- Can be utilized as a tracer.
- Suitable for use as an internal standard for quantitative analysis.
- Supports analysis by techniques such as NMR, GC-MS, or LC-MS.
- Incorporates stable heavy isotopes.
Medchemexpress LLC (±)14(15)-DiHET-d11 | 98050-20-5 | 95.0% | C20H23D11O4 | 25 UG
(±)14,15-DiHETrE-d11 is the deuterium labeled metabolite of (±)14(15)-EET, formed by epoxide hydrolases. This compound is for research use only and not sold to patients. Deuteration can affect the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer or internal standard
- Suitable for quantitative analysis by NMR, GC-MS, or LC-MS
Cambridge Isotope Laboratories DEHYDROEPIANDROSTERONE SULFATE:SODIUM SALT (DHEAS) (2,2,3,4,4,6-D6, 95%), 5 MG, 1261254-41-4
DEHYDROEPIANDROSTERONE SULFATE:SODIUM SALT (DHEAS) (2,2,3,4,4,6-D6, 95%), 5 MG, 1261254-41-4