Isotopically Labeled Compounds
Medchemexpress LLC Deoxycholic acid-13C | 52886-37-0 | 393.56 | 5 MG
Deoxycholic acid-13C is the 13C-labeled Deoxycholic acid. Deoxycholic acid is specifically responsible for activating the G protein-coupled bile acid receptor TGR5 that stimulates brown adipose tissue (BAT) thermogenic activity.
- 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.
- Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, largely as tracers for quantitation during the drug development process. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.
Cayman Chemical GrnIsetron-d3 1mg
An internal standard for the quantification of granisetron by GC- or LC-MS
Medchemexpress LLC GW2580-d6 | 2733770-48-2 | 98.4% | 372.45 g/mol | C20H16D6N4O3 | 5 MG
GW2580-d6 is the deuterium-labeled analogue of GW2580, a selective inhibitor of the colony-stimulating factor 1 receptor (CSF1R). Supplied as a white to off-white solid, this isotopically labeled standard is intended for use as an analytical reference, tracer, or internal standard in quantitative and pharmacokinetic studies.
- Deuterium-labeled compound for use as an isotopic standard and tracer.
- Selective CSF1R (c-Fms) inhibitor scaffold useful in kinase research.
- Purity ~98.4% suitable for analytical applications.
- Molecular weight 372.45 g/mol; formula includes six deuterium atoms.
- Soluble in DMSO (~100 mg/mL); sonication and warming aid dissolution.
- Powder stable at -20°C for long-term storage; store solutions frozen.
Medchemexpress LLC Thiabendazole-d4 | 1190007-20-5 | 98.8% | 205.27 g/mol | C10H3D4N3S | 10 MG
Thiabendazole-d4 is the deuterated isotopologue of thiabendazole, supplied as a solid stable isotope-labeled reference material for analytical and research use. It is formulated for use as an internal standard and reference in mass spectrometry and quantitative assays.
- Deuterated internal standard for mass spectrometry and quantitative assays.
- High chemical purity (98.84%) for reliable analytical performance.
- White to off-white solid, suitable for handling and weighing.
- Available in small, accurately weighed sizes for reference and calibration.
- Powder stable at -20°C for long-term storage; solvent stability is limited and should follow recommended conditions.
Medchemexpress LLC O-Toluic acid-d7 | 207742-73-2 | MFCD00216766 | 99.5% | 143.19 | 100 MG
O-Toluic acid-d7 is the deuterium labeled form of o-Toluic acid (2-Methylbenzoic acid), which is a benzoic acid with a methyl group at position 2. This compound functions as a xenobiotic metabolite and is intended for research use only.
- 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 D-Glucose (6,6-D2, 99%) | 18991-62-3 | MFCD00064367 | 1g
D-Glucose (6,6-D2, 99%) | Putity: 98% | MW: 182.17 | 18991-62-3 | MFCD00064367 | 1g
![Revvity Health Sciences Inc Choline Chloride, [Methyl-<sup>3</sup>H]-, 1mCi (37MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812733.jpg-250.jpg)
Revvity Health Sciences Inc Choline Chloride, [Methyl-3H]-, 1mCi (37MBq)
Choline Chloride, [Methyl-3H]-, 1mCi (37MBq)
Cayman Chemical TyramIn-d4hydrochlorIde 5mg
An internal standard for the quantification of tyramine by GC- or LC-MS
Medchemexpress LLC Benzothioamide-d5 | 1219804-59-7 | >98.0% | 142.23 g/mol | C7H2D5NS | 50 MG
Benzothioamide-d5 (CAS 1219804-59-7) is the deuterium-labeled analogue of benzothioamide supplied as a solid for research applications. It is intended as a stable-isotope reagent or analytical standard for use in mass spectrometry, isotopic tracing, and synthetic chemistry. Not for human use or clinical applications.
- Deuterium labeled for isotopic tracing and mass spectrometry.
- High chemical purity and isotopic enrichment (≥98%).
- Supplied as a solid for convenient storage and handling.
- Suitable as an internal standard for quantitative analysis.
- For research use only; not for human or clinical use.
Medchemexpress LLC Nicarbazin-d8 | 00-00-0 | MFCD00867204 | 100.0% | 434.43 | C19H10D8N6O6 | 1 MG
Nicarbazin-d8 is a deuterium-labeled analogue of nicarbazin intended for use as an analytical internal standard and tracer in drug metabolism, pharmacokinetic, and quantitative bioanalytical studies. Supplied as a white to off-white powder for research use only; not for human or veterinary use.
- Deuterium-labeled (d8) isotopologue for clear mass shifts in mass spectrometry analyses.
- High purity suitable for use as an internal standard in LC-MS, GC-MS, and NMR.
- Solid powder form with defined storage conditions to preserve stability.
- Appropriate for pharmacokinetic, metabolism, and quantitative analytical studies.
- White to off-white color enables easy visual inspection.
- Available in small research pack sizes for analytical workflows.
Medchemexpress LLC L-alanine-2-d1 | 21386-65-2 | MFCD00084105 | >=98.0% | 90.10 g/mol | C3H6DNO2 | 500 MG
L-Alanine-2-d1 is a deuterium-labeled analogue of L-alanine supplied for laboratory research. It is used as a stable isotope tracer and as an internal standard to improve accuracy and quantitation in analytical workflows such as NMR, GC-MS, and LC-MS.
- Deuterium-labeled tracer for metabolic and pharmacokinetic studies.
- Suitable as internal standard for quantitative NMR, GC-MS, and LC-MS analyses.
- White to off-white solid powder for laboratory handling.
- High chemical purity (≥98%) for analytical reliability.
- Stable under cold storage: powder -20°C (up to 3 years) or 4°C (up to 2 years).
- Molecular formula C3H6DNO2; molecular weight ~90.10 g/mol.
Cayman Chemical SulfamethIzole-d4 5mg
An internal standard for the quantification of sulfamethizole by GC- or LC-MS
Cambridge Isotope Laboratories Triethylphosphonoacetate (1-13C 99%) 1 g
Triethylphosphonoacetate (1-13C 99%) 1 g
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Revvity Health Sciences Inc L-[35S]-Methionine, 1mCi (37MBq), Specific Activity:>800Ci (29.6TBq)/mmole, 50mM Tricine, 10mM BME
L-[35S]-Methionine, 1mCi (37MBq), Specific Activity:>800Ci (29.6TBq)/mmole, 50mM Tricine, 10mM BME