Isotopically Labeled Compounds
Medchemexpress LLC Taurocholic acid-d4 sodium | 2410279-93-3 | MFCD29472034 | 98.2% | 541.71 | C26H40D4NNaO7S | 10 MG
Taurocholic acid-d4 sodium is the deuterium-labeled (d4) sodium salt of taurocholic acid supplied as a white to off-white solid. It is designed for use as an isotopically labeled internal standard or tracer in quantitative analytical methods, including NMR, LC-MS, and GC-MS, supporting accurate measurement of taurocholic acid. The material is supplied in small analytical packs and should be stored sealed, away from moisture, at recommended temperatures.
- Isotopically labeled (d4) sodium salt for use as an internal standard.
- Suitable for NMR, LC-MS, and GC-MS quantification.
- High purity (>98%) with supporting documentation.
- White to off-white solid, easily handled in analytical workflows.
- Stable under recommended storage conditions to preserve integrity.
Medchemexpress LLC Bexarotene-d4 | 2182068-00-2 | MFCD21363455 | 98.5% | 352.50 g/mol | C24H24D4O2 | 5 MG
Bexarotene-d4 is a deuterium-labeled analogue of bexarotene, a selective retinoid X receptor (RXR) agonist. Supplied as a purified solid for research use, it is commonly employed as an internal standard or tracer in LC-MS/GC-MS quantitation and metabolism studies involving bexarotene.
- Deuterium-labeled internal standard for mass spectrometry assays.
- High isotopic and chemical purity suitable for quantitative analysis.
- Stable solid form with recommended low-temperature storage.
- Used in pharmacokinetic, metabolism, and tracer studies.
Medchemexpress LLC Phenothiazine-d8 | 1219803-41-4 | 99.0% | 207.32 | C12HD8NS | 10mg
Phenothiazine-d8 is the deuterium labeled Phenothiazine Phenothiazine is an antibiotic which has insecticidal fungicidal antibacterial and anthelmintic activities Phenothiazine also can be used for the research of neurological diseases[1][2]
Medchemexpress LLC Florfenicol-d3 | 2213400-85-0 | 1MG
Florfenicol-d3 is a deuterium-labeled version of Florfenicol, a veterinary antibiotic used for bovine respiratory disease and to control enteric septicemia in catfish. It has been shown to induce early embryonic death in eggs. Florfenicol-d3 can be used as a tracer and as an internal standard for quantitative analysis. Deuteration, the incorporation of stable heavy isotopes, is explored for its potential to influence the pharmacokinetic and metabolic profiles of drugs.
eMolecules 26690-80-2 | N-Boc-ethanolamine | Oakwood Chemical | MFCD00056657 | 161.201 | C7H15NO3 | 97.000 | CC(C)(C)OC(=O)NCCO | 25g | 537680033
N-Boc-ethanolamine | Oakwood Chemical | 26690-80-2 | MFCD00056657 | 161.201 | C7H15NO3 | 97.000 | CC(C)(C)OC(=O)NCCO | 25g | 537680033
Medchemexpress LLC Ethyl cinnamate-d5 | 856765-68-9 | 99.7% | 181.24 | C11H7D5O2 | 25mg
Ethyl cinnamate-d5 is the deuterium labeled Ethyl cinnamate[1] Ethyl cinnamate is a fragrance ingredient used in many fragrance compounds Ethyl cinnamate is a food flavor and additive for cosmetic products Ethyl cinnamate is also an excellent clearing reagent for mammalian tissues[2][3]
Medchemexpress LLC L-lysine-13c dihydrochloride | 202190-50-9 | 220.10 | 5 MG
L-Lysine-13C (dihydrochloride) is the 13C-labeled L-Lysine dihydrochloride. L-lysine dihydrochloride is an essential amino acid for humans with various benefits including treating herpes, increasing calcium absorption, reducing diabetes-related illnesses and improving gut health. For research use only. We do not sell to patients.
- This compound can be used as a tracer.
- This compound can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC Acyclovir-d4 | 1185179-33-2 | 98.7% | 229.23 | C8H7D4N5O3 | 10 MG
Acyclovir-d4 is a deuterium-labeled analogue of the antiviral acyclovir provided for research use. It is intended as a stable-isotope tracer or internal standard for analytical assays and pharmacokinetic studies, enabling accurate quantitation and method validation. The compound is supplied as a high-purity solid suitable for LC-MS/MS and related analytical workflows.
- Deuterium-labeled analog for tracer and internal standard use.
- High purity suitable for analytical assays and method validation.
- Stable solid form with defined storage recommendations.
- Supports quantitative LC-MS/MS and pharmacokinetic analyses.
- Available in small, pre-weighed quantities for method development.