Isotopically Labeled Compounds
Medchemexpress LLC Ethanaminium, 2-(acetyloxy)-N,N,N-tri(methyl-d3)-, chloride | 344298-95-9 | MFCD01074064 | 99.0% | 190.72 g/mol | C7H7D9ClNO2 | 10 MG
Acetylcholine-d9 chloride is the deuterium-labeled form of acetylcholine chloride intended for use as a tracer and internal standard in analytical and biochemical research. It acts as a cholinergic agonist and is suitable for quantitative analysis by NMR, GC-MS, and LC-MS.
- Deuterium-labeled tracer for quantitative analysis.
- High purity (99.0%).
- Molecular weight 190.72 g/mol.
- White to off-white solid, chloride salt.
- Suitable for NMR, GC-MS, and LC-MS workflows.
- Store sealed at 4°C; in solvent store at -80°C for long term.
Medchemexpress LLC Clemastine-d5 fumarate | 14976-57-9 | 99.5% | 464.99 | C25H25D5ClNO5 | 10 MG
Clemastine-d5 fumarate is the deuterium-labeled (d5) analogue of clemastine fumarate supplied as a stable-isotope analytical standard for research and quantitative mass spectrometry. It is intended for use as an internal standard or tracer in LC-MS/MS and other analytical workflows, and is not for clinical use.
- Deuterium-labeled (d5) stable isotope standard.
- Intended for research and analytical use only.
- High purity (≈99.5%).
- Molecular weight 464.99 g/mol.
- Chemical formula C25H25D5ClNO5.
- Available in multiple pack sizes, including 10 mg.
Medchemexpress LLC (E)-ferulic acid-d3 | 860605-59-0 | 99.8% | 197.20 g/mol | C10H7D3O4 | 10 MG
(E)-Ferulic acid-d3 is the deuterium-labeled analogue of (E)-ferulic acid used as an analytical standard and tracer for research applications. It is intended for use as an internal standard in quantitative techniques and exhibits the antioxidant and anti-proliferative properties associated with the parent compound.
- Deuterium-labeled internal standard for quantitative analysis.
- High purity (99.8%) suitable for analytical applications.
- Soluble in DMSO at 100 mg/mL; ultrasonic treatment may be required.
- Stable as a powder at -20°C for up to 3 years under recommended storage.
- White to off-white solid appearance for easy visual inspection.
Medchemexpress LLC 1-hexadecanol-d5 | 1219799-18-4 | 99.2% | 10 MG
1-Hexadecanol-d5 is the deuterium-labeled analogue of 1-hexadecanol, provided as a high-purity stable isotope standard for analytical use. It is supplied as a white to off-white solid and is intended for use as a tracer or internal standard in quantitative NMR, GC-MS, and LC-MS analyses.
- High purity: 99.20%.
- Molecular formula: C16H29D5O; molecular weight: 247.47.
- Available in small analytical pack sizes, including 10 mg.
- Soluble in DMSO; warming and sonication can improve dissolution.
- Suitable as a tracer and internal standard for quantitative analysis.
- Storage: powder -20°C (3 years) or 4°C (2 years); in solvent -80°C (6 months) or -20°C (1 month).
- Appearance: white to off-white solid.
Medchemexpress LLC L-valine-d8 | 35045-72-8 | MFCD00144704 | 99.8% | 125.20 g·mol⁻¹ | C5H3D8NO2 | 10 MG
L-Valine-d8 is the deuterated isotopologue of the essential amino acid L-valine, labeled with eight deuterium atoms and supplied for research use as a stable isotope standard or for labeled synthesis. It is commonly used as an internal standard in mass spectrometry and for metabolic and isotopic-labeling studies.
- Deuterated with eight deuterium atoms for mass-difference applications.
- High isotopic enrichment, suitable for quantitative MS analysis.
- High chemical purity for research applications.
- Available in small solid vials and solution formats for flexible use.
Cambridge Isotope Laboratories METHYL IODIDE + COPPER WIRE (13C, 99%; D3, 99%), 5 G, 20710-47-8
METHYL IODIDE + COPPER WIRE (13C, 99%; D3, 99%), 5 G, 20710-47-8
Medchemexpress LLC Cetirizine-d4 dihydrochloride | 83881-52-1 | ≥98.0% | 10 MG
Cetirizine-d4 dihydrochloride is a deuterium-labeled research standard of cetirizine, supplied for analytical and laboratory use. The compound is provided as the dihydrochloride salt and is intended for use as an internal standard or tracer in mass spectrometry and chromatographic assays.
- Deuterium-labeled for mass spectrometry and tracer studies.
- Dihydrochloride salt for consistent handling and stability.
- High chemical purity (≥98.0%).
- Supplied in small milligram quantities suitable for analytical standards.
- Suitable as an internal standard for HPLC-MS and quantitative assays.
Medchemexpress LLC CER8-d9 | 2260670-29-7 | 99.0% | 562.96 | 1 MG
CER8-d9 is deuterium labeled CER8, intended for research use only. It serves as a tracer or internal standard for quantitative analysis. Deuteration, the process of incorporating stable heavy isotopes of hydrogen, carbon, and other elements into drug molecules, is used for quantitation during drug development and can affect the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer
- Internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Deuterium labeled compound
- Affects pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC Bisphenol A-d8 | 92739-58-7 | MFCD00143778 | 236.34 | C15H8D8O2 | 10 MG
Bisphenol A-d8 is the deuterium-labeled isotopologue of bisphenol A used as an analytical reference and internal standard for quantitative mass spectrometry. It is intended for trace-level quantification and method development in environmental, food, and biological sample analysis.
- Deuterium-labeled (d8) to enable isotope-based discrimination in mass spectrometry.
- Provides a consistent internal standard for accurate quantification of bisphenol A.
- Suitable for method development, validation, and trace-level analysis.
- Chemical formula C15H8D8O2 and molecular weight 236.34 for reference use.
- Packaged in small quantities appropriate for analytical standards (10 mg).
Medchemexpress LLC Choline-d4 (chloride) | 285979-70-6 | 99.9% | 25 MG
Choline-d4 (chloride) is the deuterium labeled Choline chloride, an organic compound and a quaternary ammonium salt. It functions as an acyl group acceptor and choline acetyltransferase substrate. This compound is also an important additive in feed, particularly for chickens where it accelerates growth. It is for research use only.
- Used as a tracer for quantitation during drug development.
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuterium substitution can affect pharmacokinetic and metabolic profiles of drugs.
Sigma Aldrich Fine Chemicals Biosciences H20 18O NORMLIZED 99 ATOM
NC3681982 H20 18O NORMLIZED 99 ATOM
Medchemexpress LLC Celecoxib-d3 | 544686-18-2 | 99.0% | C17H11D3F3N3O2S | 1 MG
Celecoxib-d3 is the deuterium labeled Celecoxib, a selective non-steroidal anti-inflammatory drug (NSAID) and a selective COX-2 inhibitor with an IC50 of 40 nM. 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.
- Stable heavy isotopes like deuterium have the potential to affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Leucine-2,3,3,4,5,5,5,5',5',5'-d10 | 29909-01-1 | 98.0% | 25 MG
(±)-Leucine-d10 is a deuterium labeled isomer of Leucine. It is used as a chemosterilant and dietary additive, notably inhibiting the growth of Escherichia coli HfrH.
- Used as a tracer in various applications.
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes are incorporated for quantitation during drug development.
- Deuteration can affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Octacosane-d58 | 16416-33-4 | MFCD00190493 | 99.1% | 453.12 g·mol⁻¹ | C28D58 | 100 MG
Octacosane-d58 is the deuterium-labeled form of octacosane provided as a stable isotope analytical standard for research and analytical applications. It is commonly used as an internal standard in mass spectrometry and for isotope-tracing studies, retaining the chemical properties of octacosane while containing deuterium atoms.
- Deuterium-labeled octacosane for isotope-labeling and tracing studies.
- Intended as an analytical internal standard for mass spectrometry.
- High purity: 99.05% (reported).
- Chemical formula C28D58; molecular weight 453.12 g·mol⁻¹.
- Available as a 100 mg solid package.
- CAS number 16416-33-4 for unambiguous identification.
Medchemexpress LLC L-lysine-d9 hydrochloride | 2708343-64-8 | 99.1% | 191.70 g/mol | C6H6D9ClN2O2 | 10 MG
L-Lysine-d9 hydrochloride is a deuterium-labeled form of the essential amino acid L-lysine, presented as the hydrochloride salt and intended for use as an internal standard, tracer, or reference material in mass spectrometry and metabolomics workflows.
- Deuterium-labeled internal standard for LC-MS and metabolomics.
- Purity approximately 99.0% (batch example 99.09%).
- Molecular formula: C6H6D9ClN2O2.
- Molecular weight: 191.70 g/mol.
- Appearance: white to off-white solid.
- Typical package: 10 MG; other sizes available.