Isotopically Labeled Compounds
Medchemexpress LLC Methanol-d | 1455-13-6 | MFCD00044213 | >99.0% | 33.05 | CH3OD | 10 G
Methanol-d1 (CH3OD) is a deuterium-labeled form of methanol supplied as a high-purity stable isotope reagent for analytical and research use. It is intended for use as a tracer and as an internal standard in NMR, GC-MS, and LC-MS workflows. Manufacturer documentation includes purity and storage recommendations to preserve isotopic integrity.
- High isotopic purity (≥99.0%).
- Suitable as tracer and internal standard for NMR, GC-MS, and LC-MS analyses.
- Provided with certificate of analysis and safety data sheet.
- Stable under recommended storage; extended shelf life when stored at low temperature.
- Available in laboratory-scale package sizes for research use.
Medchemexpress LLC 1-bromoheptane-d5 | 1219805-66-9 | >98.0% | 184.13 g/mol | C7H10D5Br | 50 MG
1-Bromoheptane-d5 is the deuterium-labeled analogue of 1-bromoheptane used as an isotope-labelled standard and reagent in analytical and synthetic applications. It contains five deuterium atoms, making it suitable as an internal standard for quantitative mass spectrometry and tracer studies. Store and handle under recommended low-temperature conditions to preserve integrity.
- Deuterium-labeled (d5) isotopologue for mass spectrometry and tracer studies.
- Suitable as an internal standard for quantitative GC-MS and LC-MS methods.
- Molecular weight 184.13 g/mol and chemical formula C7H10D5Br.
- Available in small-mass vials for laboratory use (for example, 50 mg).
- Recommended storage: pure form -20°C; in solvent -80°C for long-term storage.
Cayman Chemical LIthocholIc AcId-d4 500ug
An internal standard for the quantification of lithocholic acid by GC- or LC-MS
Medchemexpress LLC (R)-Lercanidipine-d3 hydrochloride | 1217724-52-1 | 99.9% | 5 MG
(R)-lercanidipine D3 hydrochloride is a deuterium labeled (R)-Lercanidipine hydrochloride. (R)-Lercanidipine-d3 (hydrochloride), the R-enantiomer of Lercanidipine, is a calcium channel blocker. It is for research use only and not sold to patients.
- 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 Pimozide-d4-1 | 2062-78-4 | 100 UG
Pimozide-d4-1 is a deuterium-labeled version of Pimozide, a dopamine receptor antagonist. It exhibits Ki values of 1.4 nM for D2, 2.5 nM for D3, and 588 nM for D1 receptors, along with affinity at the α1-adrenoceptor (Ki of 39 nM). Additionally, Pimozide inhibits STAT3 and STAT5. Deuterium labeling allows for its use as a tracer and internal standard in quantitative analyses, impacting pharmacokinetic and metabolic profiles of drugs.
- Deuterium-labeled compound
- Functions as a dopamine receptor antagonist
- Exhibits affinity at α1-adrenoceptor
- Inhibits STAT3 and STAT5
- Useful as a tracer in drug development
- Serves as an internal standard for quantitative analysis (NMR, GC-MS, LC-MS)
- Impacts pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC Candesartan-d4 | 1346604-70-3 | 98.2% | 1 MG
Candesartan-d4 (CV-11974-d4) is the deuterium labeled Candesartan, an orally active angiotensin II AT1-Receptor blocker and PPAR-γ agonist. It has potent and long-lasting antihypertensive effects and is used for the research of hypertension, chronic heart failure (CHF), and traumatic brain injury (TBI).
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Incorporates stable heavy isotopes into drug molecules for quantitation during drug development
- Deuteration can affect the pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC Erythromycin-d3 | 959119-26-7 | 95.0% | 1 MG
Erythromycin-d3 is a deuterium-labeled macrolide antibiotic produced by the actinomycete Streptomyces erythreus. It exhibits broad-spectrum antimicrobial activity by binding to bacterial 50S ribosomal subunits, thereby inhibiting RNA-dependent protein synthesis. Beyond its antibiotic properties, Erythromycin also demonstrates antitumor and neuroprotective effects in various research areas.
- Can be utilized as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC Taurine-13C2 | 70155-54-3 | MFCD01075566 | 99.9% | 5 MG
Taurine-13C2 is a 13C-labeled form of Taurine, a sulfur-containing amino acid and organic osmolyte. It plays a role in cell volume regulation, serves as a substrate for bile salt formation, and modulates intracellular free calcium concentration. Taurine has also been shown to activate autophagy in adipocytes.
- Used as a tracer
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Molecular weight: 127.13
- Isotopic purity: ≥99 atom % 13C
- Assay: ≥98% (CP)
- Mass shift: M+2
- Physical form: solid
- Suitable for bio NMR and mass spectrometry (MS) techniques
- Melting point: >300 °C
Medchemexpress LLC L-cysteine-2,3,3-d3 | 214782-32-8 | MFCD12546019 | 99.2% | 124.18 g/mol | C3H4D3NO2S | 1mg
L-Cysteine-d3 is the deuterium labeled L-Cysteine L-Cysteine is a conditionally essential amino acid which acts as a precursor for biologically active molecules such as hydrogen sulphide (H2S) glutathione and taurine L-Cysteine suppresses ghrelin and reduces appetite in rodents and humans[1]
Medchemexpress LLC Decanoic acid-d5 | 1219803-00-5 | 98.3% | 177.30 | C10H15D5O2 | 25 MG
Decanoic acid-d5 is the deuterium-labeled analogue of decanoic (capric) acid provided for research use. It is used as an isotopically labeled standard or tracer in analytical workflows, particularly mass spectrometry and metabolic studies, and is supplied with confirmed chemical and isotopic purity.
- Isotopically labeled (d5) decanoic acid for analytical standards.
- High chemical and isotopic purity for accurate quantitation.
- Available in multiple pre-weighed sizes to suit experimental needs.
- Suitable as an internal standard or tracer in mass spectrometry.
- Provided for research use only; not for human or diagnostic applications.
Sigma Aldrich Fine Chemicals Biosciences L-Serine-13C3,15N 98 atom % 13C, 98 atom % 15N, 95% (CP) | 202407-34-9 | MFCD00144678 | 100MG
L-Serine-13C3,15N 98 atom % 13C, 98 atom % 15N, 95% (CP) | Purity: 95% (CP) | Mol Wt: 109.06 | 202407-34-9 | MFCD00144678 | 100MG
Medchemexpress LLC Methyl nicotinate-d4 | 345909-99-1 | 99.5% | 25 MG
Methyl nicotinate-d4 is the deuterium labeled Methyl nicotinate. The non-deuterated Methyl nicotinate, the methyl ester of Niacin, is found in alcoholic beverages and is used as an active ingredient as a rubefacient in over-the-counter topical preparations indicated for muscle and joint pain.
- Can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes, including deuterium, are incorporated into drug molecules as tracers for quantitation during drug development, and deuteration can influence the pharmacokinetic and metabolic profiles of drugs.
- Appearance: solid
- Color: off-white to light yellow
Cayman Chemical Linoleoyl Ethanolamide-d4, Purity: ≥99% deuterated forms (d1-d4), CAS: 1451194-69-6, 2.5 mg
An internal standard for the quantification of linoleoyl ethanolamide by GC- or LC-MS
Medchemexpress LLC Nonanoic acid-d4 | 1219795-27-3 | 5 MG
Nonanoic acid-d4 is the deuterium labeled Nonanoic acid, a naturally-occurring saturated fatty acid with nine carbon atoms. It significantly reduces bacterial translocation, enhances antibacterial activity, and remarkably increases the secretion of porcine β-defensins 1 (pBD-1) and pBD-2.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Cambridge Isotope Laboratories PROPANE (D8, 98%), 1 L, 2875-94-7
PROPANE (D8, 98%), 1 L, 2875-94-* This item is shipped in a Code K-460 stainless steel cylinder. The fee for the cylinder will need added to the order as a separate charge, per each. Please include part# NC1924736to the order for the cylinder fee.