Isotopically Labeled Compounds
Medchemexpress LLC 2-methylanisole-d3 | 258832-47-2 | ≥98.0% | 125.18 g·mol⁻¹ | C8H7D3O | 100 MG
2-Methylanisole-d3 is the deuterium-labeled isotopologue of 2-methylanisole provided for laboratory research. It is used as an isotopic standard and as a synthetic intermediate in the preparation of compounds with a methylhydroquinone core. For research use only; not for human consumption.
- Isotopic enrichment: 99 atom % D.
- Molecular formula: C8H7D3O.
- Molecular weight: 125.18 g·mol⁻¹.
- Typical chemical purity: ≥98.0%.
- Packaging: 100 mg suitable for analytical and synthetic workflows.
- Intended use: research applications and method development.
Medchemexpress LLC Apalutamide-d4 | 1638885-65-0 | MFCD18384392 | 99.9% | 481.46 g/mol | C21H11D4F4N5O2S | 10 MG
Apalutamide-d4 is a deuterium-labeled analogue of apalutamide supplied as a 10 mg analytical standard for research and analytical applications.
- Deuterium-labeled internal standard for mass spectrometry and analytical assays.
- CAS number 1638885-65-0 for unambiguous identification.
- Molecular formula C21H11D4F4N5O2S; molecular weight 481.46 g/mol.
- High purity: 99.9% suitable for analytical workflows.
- Packaged as a 10 mg quantity appropriate for reference and method development.
Cambridge Isotope Laboratories 25-HYDROXYVITAMIN D3 (95% CP) (23,24,25,26,27-13C5, 99%) 100 UG/ML IN ETHANOL, 1 ML, 63283-36-3
25-HYDROXYVITAMIN D3 (95% CP) (23,24,25,26,27-13C5, 99%) 100 UG/ML IN ETHANOL, 1 ML, 63283-36-3
Cambridge Isotope Laboratories p-Coumaric acid (propyl-13C3 99%) CP 99% 5 mg
p-Coumaric acid (propyl-13C3 99%) CP 99% 5 mg
Medchemexpress LLC Fmoc-3VVD-OH-d8 | 863971-44-2 | MFCD28386982 | 10 MG
Fmoc-3VVD-OH-d8 is a deuterium-labeled Fmoc-protected amino-acid derivative used as an ADC linker intermediate and as a stable-isotope tracer for analytical and pharmacokinetic studies. The deuterated analog supports mass-spectrometry quantification and may alter metabolic or pharmacokinetic behavior.
- Deuterium-labeled analog suitable for tracer and quantification studies.
- Used as an ADC linker intermediate in antibody-drug conjugate synthesis.
- Formula C36H43D8N3O7; molecular weight 645.86.
- Off-white to light yellow solid appearance.
- Store at 4°C; in solution store at -80°C (up to 6 months) or -20°C (up to 1 month); protect from light.
- Available in small mg-scale quantities (e.g., 10 MG).
Medchemexpress LLC Glycine-1-13C,15N | 112898-03-0 | MFCD00064425 | 99.5% | 77.053 g/mol | C2H5NO2 | 5mg
Glycine-1-13C 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 Alanine-2,3,3,3-d4 | 53795-92-9 | MFCD00084108 | 99.8% | 93.12 g/mol | C3H3D4NO2 | 50 MG
Alanine-2,3,3,3-d4 is a deuterium-labeled alanine used as a stable isotope standard for analytical and biochemical applications. Supplied as a powder in multiple package sizes, it is suitable for mass spectrometry, nuclear magnetic resonance (NMR), isotope-dilution quantitation, and metabolic tracing. High isotopic and chemical purity, together with available documentation, supports reproducible analytical workflows.
- High isotopic purity (deuterium-labeled) for accurate internal standard use.
- High chemical purity for reliable analytical results.
- Available in small, research-scale quantities to minimize sample waste.
- Supplied with datasheet, certificate of analysis, and safety data sheet for quality and safety documentation.
- Stable under recommended storage conditions to preserve compound integrity.
Cambridge Isotope Laboratories INDOLE-3-ACETIC ACID (2,2-D2, 96%), 0.25 G, 24420-86-8
INDOLE-3-ACETIC ACID (2,2-D2, 96%), 0.25 G, 24420-86-8
Medchemexpress LLC Choline-d4 chloride | 285979-70-6 | 99.9% | 100 MG
Choline-d4 (chloride) is the deuterium labeled Choline chloride. Choline chloride is an organic compound and a quaternary ammonium salt, an acyl group acceptor and choline acetyltransferase substrate, also an important additive in feed, especially for chickens where it accelerates growth. 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.
- 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.
Cambridge Isotope Laboratories Oxychlordane (13C10 99%) 100 ug/mL in nonane 1 2 mL
Oxychlordane (13C10 99%) 100 ug/mL in nonane 1 2 mL
Medchemexpress LLC Cephalexin-d5 (hydrate) | 93.7% | 370.43 | C16H14D5N3O5S | 1 MG
Cephalexin-d5 (hydrate) is a deuterium-labeled form of cephalexin provided as a monohydrate solid for analytical and research use. It is supplied for use as a stable-isotope internal standard or tracer in quantitative analysis and pharmacokinetic investigations using mass spectrometry.
- Deuterium-labeled monohydrate for use as an internal standard in LC-MS/MS.
- Suitable for quantitative, pharmacokinetic, and metabolic studies.
- Provided as a 1 mg solid for analytical preparation.
- Reported purity 93.7%; verify batch COA for exact value.
- Chemical formula C16H14D5N3O5S; molecular weight 370.43 for identification.
Medchemexpress LLC Pimozide-d4 | 1803193-57-8 | 99.2% | 1 MG
Pimozide-d4 is a deuterium labeled Pimozide. It acts as a dopamine receptor antagonist with Ki values of 1.4 nM, 2.5 nM, and 588 nM for dopamine D2, D3, and D1 receptors, respectively. It also has an affinity at α1-adrenoceptor with a Ki of 39 nM, and inhibits STAT3 and STAT5. This compound can be used as a tracer or as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuterium labeled compound
- Dopamine receptor antagonist (D2, D3, D1)
- Affinity at α1-adrenoceptor
- Inhibits STAT3 and STAT5
- 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 Ketotifen-d3 fumarate | 1795138-23-6 | 99.2% | 1 MG
Ketotifen-d3 (fumarate) is the deuterium labeled Ketotifen fumarate. Ketotifen (HC 20511) fumarate is a second-generation noncompetitive H1-antihistamine and mast cell stabilizer, which is used to prevent asthma attacks. It is for research use only and not sold to patients.
- Deuterium labeled Ketotifen fumarate
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Deuteration has the potential to affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Ambroxol-d5 (hydrochloride) | 2741380-71-0 | 99.6% | 500 UG
Ambroxol-d5 (hydrochloride) is the deuterium-labeled Ambroxol hydrochloride. Ambroxol hydrochloride, an active metabolite of the proagent Bromhexine, has potent expectorant effects. It acts as a glucocerebrosidase (GCase) chaperone, increasing glucocerebrosidase activity and inducing lung autophagy. It has potential for Parkinson's disease and neuronopathic Gaucher disease research.
- 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 of hydrogen, carbon, and other elements for quantitation during drug development.
- Deuteration can affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Galanthamine-d6 | 1128109-00-1 | MFCD28138526 | 99.5% | 293.39 | C17H15D6NO3 | 10 MG
Galanthamine-d6 is the deuterium-labeled analogue of galanthamine, a potent acetylcholinesterase (AChE) inhibitor. The compound is intended for research use and serves as an analytical standard or internal standard for quantitative analysis techniques such as NMR, GC-MS, and LC-MS.
- Deuterium-d6 labeled galanthamine for isotope tracing and analytical standard use.
- High isotopic and chemical purity (reported ~99.5%).
- Appropriate as an internal standard for NMR, GC-MS, and LC-MS quantitation.
- Available in small sizes for analytical workflows (10 mg available).
- Solid, white to yellow appearance; powder storage recommended at -20°C for long-term stability; solvent samples require lower temperatures.