Isotopically Labeled Compounds
Medchemexpress LLC Choline-d13 chloride | 352438-97-2 | 99.9% | 5 MG
Choline-d13 (chloride) is the deuterium labeled Choline chloride, an organic compound and a quaternary ammonium salt. It acts as an acyl group acceptor and choline acetyltransferase substrate. It is also an important additive in feed, particularly for chickens, where it accelerates growth. This product is 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
Medchemexpress LLC Metolachlor-d6 | 1219803-97-0 | 99.6% | 1 MG
Metolachlor-d6 is the deuterium-labeled form of Metolachlor. Metolachlor is a pre-emergent, selective, chloroacetanilide herbicide used to control various annual grass and broadleaf weeds in corn and other crops. It is a chiral herbicide consisting of four stereoisomers.
- 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 L-Tryptophan-d5 | 62595-11-3 | MFCD28495036 | 209.26 | 1 MG
L-Tryptophan-d5 is a deuterium-labeled form of L-Tryptophan, an essential amino acid. It serves as a precursor for the synthesis of 5-HT, melatonin, and niacin, and is involved in various physiological processes.
- Deuterium-labeled essential amino acid
- Precursor for 5-HT, melatonin, and niacin synthesis
- Involved in immune function
- Plays a role in neuronal activity
Cayman Chemical LIgnocerIc AcId-d47 1mg
An internal standard for the quantification of lignoceric acid by GC- or LC-MS
Medchemexpress LLC Palmitic acid-13C2 | 86683-25-2 | 258.41 | 25 MG
Palmitic acid-13C2 is a 13C-labeled version of Palmitic acid, a long-chain saturated fatty acid found in animals and plants. It has been observed to induce the expression of glucose-regulated protein 78 (GRP78) and CCAAT/enhancer binding protein homologous protein (CHOP) in mouse granulosa cells.
- Purity: 99.54%
- 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
- Powder is stable for 3 years at -20°C and 2 years at 4°C
- In solvent, stable for 6 months at -80°C and 1 month at -20°C
- Soluble in DMSO (≥ 100 mg/mL)
eMolecules AstaTech / ACETAMIDE-15N / 0.1g / 718054738 / 41452 / 95.000 / 1449-72-5 / MFCD00084187 / 60.061 / C2H5NO
AstaTech / ACETAMIDE-15N / 0.1g / 718054738 / 41452 / 95.000 / 1449-72-5 / MFCD00084187 / 60.061 / C2H5NO
Medchemexpress LLC Oxalic acid-13C2 | 62654-02-8 | MFCD00084031 | 99.5% | 92.02 g·mol⁻1 | 13C2H2O4 | 5mg
Oxalic acid-13C2 is the deuterium labeled Oxalic acid 99% (HY-Y0262)[1] Oxalic Acid is a strong dicarboxylic acid occurring in many plants and vegetables and can be used as an analytical reagent and general reducing agent[2]
Medchemexpress LLC 4-((2r,3s,4r,5s)-3-(3-chloro-2-fluorophenyl)-4-(4-chloro-2-fluorophenyl)-4-cyano-5-neopentylpyrrolid | 1229705-22-9 | MFCD26142931 | 99.6% | 619.50 | C31H26D3Cl2F2N3O4 | 10 MG
Idasanutlin-d3-1 is the deuterium-labeled analogue of idasanutlin supplied as a stable-isotope reference standard for research. It is intended for use as an internal standard or tracer in analytical, pharmacokinetic, and ADME studies of MDM2/p53 inhibitors, enabling accurate quantitation, method validation, and recovery assessment in LC-MS workflows. The product is supplied as a characterized solid with supporting analytical documentation.
- Used as internal standard for LC-MS quantitation.
- Suitable for pharmacokinetic and ADME studies.
- High purity (99.6%).
- Molecular formula C31H26D3Cl2F2N3O4.
- Molecular weight 619.50.
- Supplied with COA, HNMR, LCMS, and SDS.
Medchemexpress LLC p-Toluic acid-d7 | 1219798-76-1 | MFCD06658857 | 99.72% | C8HD7O2 | 25 MG
p-Toluic acid-d7 is the deuterium labeled p-Toluic acid. This substituted benzoic acid can be used as an intermediate for the synthesis of para-aminomethylbenzoic acid (PAMBA) and p-tolunitrile. It is intended for research use only.
- Deuterium labeled compound
- Can be used as a tracer
- Suitable as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Potential to affect pharmacokinetic and metabolic profiles in drug development
Medchemexpress LLC 1,6-anhydro-β-D-glucopyranose-d7 | 2483832-05-7 | 99.9% | 169.18 g/mol | C6H3D7O5 | 25 MG
Levoglucosan-d7 is the deuterium-labeled isotopic form of levoglucosan (1,6-anhydro-β-D-glucopyranose), supplied as an analytical standard for research and mass spectrometry applications.
- Deuterium-labeled isotopic standard for levoglucosan.
- High purity (99.9%).
- Cas number 2483832-05-7.
- Provided as a solid suitable for analytical use.
- Common application: internal standard in mass spectrometry and tracer studies of biomass pyrolysis.
- Available in small quantities for analytical workflows (for example, 25 mg).
Medchemexpress LLC 7-keto-Deoxycholic acid | 911-40-0 | MFCD00271373 | 99.7% | 406.56 | 100 MG
7-keto-Deoxycholic acid is a metabolite of bile acids found in *Clostridium absonum*. It can also be converted from *Lactobacillus* and *Bifidobacterium* under specific conditions.
- High purity of 99.71%.
- Molecular weight of 406.56.
- Appears as a white to off-white solid.
- Classified as ketones, aldehydes, and acids.
- Endogenous metabolite of human origin.
- Recommended storage at 4°C, protected from light.
- Soluble in DMSO at 100 mg/mL with ultrasonication.
Medchemexpress LLC Glycine-2-13C,15N | 91795-59-4 | MFCD00064424 | 98.0% | 77.05 | C13CH515NO2 | 50mg
Glycine-2-13C 15N is the 13C- and 15N-labeled Glycine Glycine is an inhibitory neurotransmitter in the CNS and also acts as a co-agonist along with glutamate facilitating an excitatory potential at the glutaminergic N-methyl-D-aspartic acid (NMDA) receptors
Medchemexpress LLC Sotalol-d6 hydrochloride | 1246820-85-8 | 99.0% | 5 MG
Sotalol-d6 hydrochloride is a deuterium labeled Sotalol hydrochloride. It is an orally active, non-selective competitive β-adrenergic receptor blocker and a potent antiarrhythmic agent. It blocks β-receptors and potassium KCNH2 channels.
- 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 Cyclosporin A-d4 | 59865-13-3 | 99.6% | 1 MG
Cyclosporin A-d4 is the deuterium labeled Cyclosporin A. Cyclosporin A (Cyclosporine A) is an immunosuppressant that binds to cyclophilin and inhibits the phosphatase activity of calcineurin with an IC50 of 5 nM. It also inhibits CD11a/CD18 ad.
- 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 of hydrogen, carbon, and other elements are incorporated into drug molecules, primarily as tracers for quantitation during the drug development process.
- Deuteration has gained attention due to its potential to affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Rabeprazole-d4 sodium | 117976-90-6 | 98.6% | 5 MG
Rabeprazole-d4 (sodium) is the deuterium labeled Rabeprazole sodium, a second-generation proton pump inhibitor (PPI) that irreversibly inactivates gastric H+/K+-ATPase. It induces apoptosis and acts as a uridine nucleoside ribohydrolase (UNH) inhibitor with an IC50 of 0.3 μM. This compound can be used for the research of gastric ulcerations and gastroesophageal reflux.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Incorporates stable heavy isotopes, potentially affecting pharmacokinetic and metabolic profiles of drugs.