Isotopically Labeled Compounds
Cambridge Isotope Laboratories Diethyl phthalate (unlabeled) 100 ug/mL in nonane 1 2 mL
Diethyl phthalate (unlabeled) 100 ug/mL in nonane 1 2 mL
Medchemexpress LLC L-tyrosine-d2-2 | 57746-15-3 | 10 MG
Deuterium-labeled L-tyrosine used as a stable-isotope standard and tracer for biochemical, pharmacokinetic, and mass spectrometry applications.
- Deuterium-labeled amino acid for tracer and quantitation studies.
- Molecular formula C9H9D2NO3; molecular weight 183.20 g/mol.
- CAS number 57746-15-3.
- Suitable as an internal standard in LC-MS/MS workflows.
- Storage: powder at -20°C; in solvent at -80°C (up to 6 months) or -20°C (up to 1 month).
- Typical pack size: 10 MG.
Medchemexpress LLC Glyburide-d3 | 1219803-02-7 | C23H25D3ClN3O5S | 1 MG
Glyburide-d3 is a deuterium-labeled version of Glibenclamide, an orally active inhibitor of ATP-sensitive K+ channels (KATP). It is used in research related to diabetes and obesity, inhibiting P-glycoprotein and blocking SUR1 subunits of KATP. Glyburide-d3 also impacts mitochondrial bioenergetics and can induce autophagy.
- Deuterium labeled version of Glibenclamide.
- Orally active ATP-sensitive K+ channel (KATP) inhibitor.
- Used in research for diabetes and obesity.
- Inhibits P-glycoprotein.
- Blocks SUR1 subunits of KATP.
- Inhibits cystic fibrosis transmembrane conductance regulator protein (CFTR).
- Impacts mitochondrial bioenergetics.
- Can induce autophagy.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Cayman Chemical TryptamIn-d4hydrochlorIde 1mg
An internal standard for the quantification of tryptamine by GC- or LC-MS
Cambridge Isotope Laboratories BENZOIC ACID CALIBRANT FOR QNMR 15mM BENZOIC ACID IN DMSO-D6 (160 UL FILL VOLUME), 1 3MM TUBE
BENZOIC ACID CALIBRANT FOR QNMR 15mM BENZOIC ACID IN DMSO-D6 (160 UL FILL VOLUME), 1 3MM TUBE
Medchemexpress LLC Obeticholic acid-d4-1 | 459789-99-2 | 99.8% | 410.62 | 1 MG
Obeticholic Acid-d4 is the deuterium labeled Obeticholic acid. Obeticholic acid (INT-747) is a potent, selective and orally active FXR agonist with an EC50 of 99 nM. Obeticholic acid has anticholeretic and anti-inflammation effect. Obeticholic acid also induces autophagy.
- It is a deuterium labeled compound.
- It is a potent, selective, and orally active FXR agonist.
- It has an EC50 of 99 nM.
- It possesses anticholeretic effects.
- It exhibits anti-inflammation effects.
- It induces autophagy.
- It can be used as a tracer.
- It can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC Fulvestrant-d5 (ICI 182780-d5) | 00-00-0 | 99.7% | 611.80 | C32H42D5F5O3S | 5 MG
Fulvestrant-d5 is a deuterium-labeled analogue of fulvestrant used as an internal standard in bioanalytical and mass spectrometry workflows. It retains the parent compound's structure while providing a distinct mass shift for selective detection and precise quantitation in pharmacokinetic, metabolic, and residue analysis.
- Deuterium-labeled internal standard for LC-MS/MS assays.
- Enables accurate quantitation and reduced matrix effects.
- Suitable for pharmacokinetic and metabolic studies.
- High chemical purity and defined storage stability.
Medchemexpress LLC (R)-praziquantel-d11 | 1399880-38-6 | MFCD00005008 | 99.6% | 322.45 g/mol | C19H13D11N2O2 | 10MG
(R)-Praziquantel-d11 is the deuterium-labeled active enantiomer of praziquantel supplied as a white to off-white solid for research use only. It is intended as an internal standard and tracer for analytical, pharmacokinetic, and metabolic studies, especially in mass spectrometry workflows. Store as a powder at -20°C and handle according to laboratory safety protocols.
- Deuterium-labeled active enantiomer for tracer and internal standard use.
- High chemical purity (>99.5%).
- Suitable for mass spectrometry and pharmacokinetic studies.
- Provided as a solid with specified storage conditions (powder: -20°C).
- Available in small research quantities (1 mg, 5 mg, 10 mg).
Medchemexpress LLC Decanoic acid-d3 | 102611-15-4 | MFCD00144050 | ≥99.0% | 175.28 g·mol⁻¹ | C10H17D3O2 | 10 MG
Decanoic acid-d3 is the deuterated analogue of decanoic (capric) acid supplied as a stable isotope reagent for analytical and biochemical research. It is provided as a solid with high isotopic and chemical purity and is intended for laboratory research use only (not for human or clinical use).
- Deuterated internal standard for mass spectrometry and tracer studies.
- High isotopic and chemical purity (≥99.0%).
- Suitable for quantitative analytical assays and method development.
- Supplied as a solid in mg-scale quantities for precise weighing.
- Store sealed, away from moisture and light; in solution, store at -80°C for long-term stability.
Cambridge Isotope Laboratories L-GLUTAMIC ACID (13C5, 99%; 15N, 99%), 1 G
L-GLUTAMIC ACID (13C5, 99%; 15N, 99%), 1 G
Cambridge Isotope Laboratories Benzyl butyl phthalate (ring-D4 98%) 100 ug/mL in nonane 1 2 mL
Benzyl butyl phthalate (ring-D4 98%) 100 ug/mL in nonane 1 2 mL
Cambridge Isotope Laboratories PYRROLE (15N, 98%+), 0.25 G, 26120-22-9
PYRROLE (15N, 98%+), 0.25 G, 26120-22-9
Medchemexpress LLC L-Leucine-d2 | 362049-59-0 | MFCD01861592 | 133.19 | 5 MG
L-Leucine-d2 is the deuterium-labeled form of L-Leucine, an essential branched-chain amino acid (BCAA) known to activate the mTOR signaling pathway. This compound can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS. Deuteration has the potential to influence the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer in quantitative analysis
- Functions as an internal standard for various analytical methods
- Activates the mTOR signaling pathway
- Potential to affect pharmacokinetic and metabolic profiles
Cayman Chemical PentadecnoIc AcId-d29 1mg
An internal standard for the quantification of pentadecanoic acid by GC- or LC-MS
Medchemexpress LLC Folinic acid-d4 calcium hydrate | 58-05-9 | 91.7% | 605.61 | 250 UG
Folinic acid-d4 calcium hydrate, also known as Leucovorin-d4 calcium hydrate, is a deuterated form of Folinic acid. It functions as a biological folic acid and is typically used as a rescue agent to reduce Methotrexate-induced toxicity. Stable heavy isotopes like deuterium are incorporated into drug molecules to serve as tracers for quantitation during drug development, which can also influence pharmacokinetic and metabolic profiles of drugs.
- Functions as a biological folic acid
- Reduces methotrexate-induced toxicity
- Can be used as a tracer
- Serves as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS