Isotopically Labeled Compounds
Cambridge Isotope Laboratories Endosulfan I (unlabeled) 100 ug/mL in nonane 1 2 mL
Endosulfan I (unlabeled) 100 ug/mL in nonane 1 2 mL
Medchemexpress LLC Celecoxib-d3 | 544686-18-2 | 99.0% | 384.39 | C17H11D3F3N3O2S | 5 MG
Celecoxib-d3 is a deuterium-labeled analytical reference of celecoxib supplied for research and analytical applications. It is intended as an internal standard for quantitative assays, including LC-MS/MS, to improve accuracy and traceability in pharmacokinetic and metabolic studies.
- Deuterium-labeled internal standard for LC-MS/MS quantitation.
- High chemical purity (99.0%) to ensure reliable analytical performance.
- Molecular weight 384.39 and formula C17H11D3F3N3O2S for exact mass calculations.
- Available in small milligram quantities suitable for analytical workflows.
- Provided with supporting documentation such as datasheet, COA, and SDS.
Medchemexpress LLC Dihydrouracil-d4 | 334473-41-5 | 99.97% | 118.13 | 5 MG
Dihydrouracil-d4 is the deuterium labeled Dihydrouracil. Dihydrouracil is a metabolite of Uracil and can be used as a marker for identification of dihydropyrimidine dehydrogenase (DPD)-deficient individuals. This compound can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes of hydrogen, carbon, and other elements.
- Incorporated into drug molecules for tracer and quantitation during drug development.
- Deuteration has potential to affect pharmacokinetic and metabolic profiles of drugs.
Cambridge Isotope Laboratories Genistein (3 5 6 8-D4 94%) 100 ug/mL in acetonitrile 1 2 mL
Genistein (3 5 6 8-D4 94%) 100 ug/mL in acetonitrile 1 2 mL
Medchemexpress LLC Fumaric acid-d4 | 194160-45-7 | MFCD00190450 | 98.0% | 120.10 | C4D4O4 | 10 MG
Fumaric acid-d4 is the deuterium-labeled form of fumaric acid used as a stable isotope tracer and internal standard for quantitative and metabolic studies. It is intended for research use and is commonly applied in analytical workflows where isotopic labeling improves detection, tracking, and quantitation of fumaric acid-related metabolites.
- Deuterium labeled for tracer and internal standard applications.
- Suitable for NMR, GC-MS, and LC-MS quantitation.
- High purity (98%) for analytical workflows.
- Solid powder with recommended low-temperature storage.
- Available in small, research-scale sizes for analytical use.
Medchemexpress LLC Medrate-d3 | 1262969-27-6 | 377.49 g/mol | C22H27D3O5 | 1 MG
Medrate-d3 is the deuterium-labeled (stable isotope) form of Medrate supplied for laboratory research as an isotope-labeled reference or tracer. Intended for analytical and isotopic-labeling applications; not for human use. Lot-specific purity and certificate of analysis (COA) are provided by the manufacturer.
- Deuterium-labeled reference compound for analytical and tracer applications
- Chemical formula C22H27D3O5
- Molecular weight 377.49 g/mol
- CAS number 1262969-27-6
- Provided in small quantities suitable for analytical standards (e.g., 1 mg)
- Purity and storage conditions reported on lot-specific certificate of analysis
Medchemexpress LLC Methionine-d3 | 284665-18-5 | 99.2% | 152.23 | 25 MG
Methionine-d3 is the deuterium-labeled Methionine. Methionine is an effective chemoprotective agent that can also inhibit neuronal activity through GABAA receptor activation.
- 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 are incorporated into drug molecules as tracers for quantitation during drug development.
- Deuteration has potential to affect pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Acetophenone-d8 | 19547-00-3 | MFCD00064447 | 100.0% | 128.20 g/mol | C8D8O | 500mg
Acetophenone-d8 is the deuterium labeled Acetophenone Acetophenone is an organic compound with simple structure[1]
Medchemexpress LLC Dodecyltrimethylammonium-d3 chloride | 1219337-20-8 | MFCD28899604 | 266.91 | C15H31D3ClN | 5 MG
DTAC-d3 (dodecyltrimethylammonium-d3 chloride) is the deuterium-labeled analogue of DTAC supplied for use as an isotope-labeled biochemical reagent in life-science research. It is intended for research use only; lot-specific purity and storage instructions are provided in the certificate of analysis.
- Isotopically labeled for mass spectrometry and tracing studies.
- Suitable as an isotope-labeled reagent in biochemical assays.
- Molecular weight 266.91.
- CAS number 1219337-20-8.
- Packaged as 5 mg units.
- For research use only; not for therapeutic use.