Isotopically Labeled Compounds
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eMolecules 84508-45-2 | Ethyl Acetate-13C2 | Toronto Research Chemicals | MFCD00037529 | 90.091 | C4H8O2CCO[13C]([13CH3])=O | 250mg | 601595355
Ethyl Acetate-13C2 | Toronto Research Chemicals | 84508-45-2 | MFCD00037529 | 90.091 | C4H8O2CCO[13C]([13CH3])=O | 250mg | 601595355
Medchemexpress LLC Ethylmalonic acid-d5 | 66311-22-6 | 98.09% | 137.15 | 5 MG
Ethylmalonic acid-d5 | 66311-22-6 | 98.09% | 137.15 | 5 MG
Medchemexpress LLC Monomethyl auristatin E-d8 | 2070009-72-0 | MFCD28386277 | 99.3% | 726.03 | C39H59D8N5O7 | 10 MG
MMAE-d8 is a deuterated isotopologue of monomethyl auristatin E, a potent mitotic inhibitor that disrupts microtubule dynamics. The deuterium-labeled compound is designed for use as an analytical standard, tracer, or internal standard in antibody-drug conjugate research, mass spectrometry, and pharmacokinetic studies. Supplied as a high-purity solid for laboratory use.
- Deuterated isotopologue for analytical and tracer applications.
- Potent tubulin inhibitor useful as an ADC payload reference.
- High reported purity suitable for sensitive assays.
- Available in small milligram pack sizes for research workflows.
- Supplied as a stable solid for accurate dosing and handling.
Medchemexpress LLC Malonyl CoA lithium | 108347-84-8 | 99.0% | C24H38N7O19P3S.xLi | 10MG
Malonyl CoA lithium is the lithium salt of malonyl coenzyme A used as a biochemical tool to modulate fatty acid metabolism. It functions as an inhibitor of carnitine palmitoyl transferase 1 (CPT1) and is provided for research applications with supporting documentation available.
- Inhibits carnitine palmitoyl transferase 1 (CPT1).
- Lithium salt of malonyl coenzyme A.
- Supplied in research-scale quantities (1 mg-100 mg).
- Purity 98.0-99.0% depending on batch.
- Molecular formula C24H38N7O19P3S·xLi.
- Data sheet and SDS available for handling and safety information.
Medchemexpress LLC 1,3-Dipentadecanoyl-2-oleoyl-glycerol-d7 | 2097561-17-4 | 99.0% | 812.35 | 1 MG
15:0-18:1-15:0 TG-d7 is deuterium labeled 15:0-18:1-15:0 TG. It is suitable for use as a tracer and 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 as tracers for quantitation during drug development. Deuteration can affect the pharmacokinetic and metabolic profiles of drugs. 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.
- Incorporates stable heavy isotopes of hydrogen, carbon, and other elements into drug molecules as tracers.
- Deuteration can affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC L-alanine-2-d1 | 21386-65-2 | MFCD00084105 | ≥98.0% | 90.10 g·mol⁻1 | C3H6DNO2 | 250 MG
L-Alanine-2-d1 is the deuterium-labeled form of the amino acid L-alanine, labeled at the 2-position. Supplied as a small-quantity solid (commonly 250 mg), it is used as an isotopic tracer, internal standard, or reagent in NMR, mass spectrometry, and metabolic studies.
- Deuterium label at the 2-position for unambiguous isotopic tracing.
- High isotopic enrichment (≥98 atom % D) for sensitive analytical work.
- High chemical purity (≥98%) suitable for standards and synthesis.
- Suitable as an internal standard for MS and NMR quantification.
- Stable, easy-to-handle solid for routine laboratory use.
Cayman Chemical Apixaban-13C-d3, Purity: ≥99% deuterated forms (d1-d3), CAS: 1261393-15-0, 1 mg
An internal standard for the quantification of apixaban by GC- or LC-MS
Cambridge Isotope Laboratories BUTYRIC ACID (1-13C, 99%), 1 G, 38765-83-2
BUTYRIC ACID (1-13C, 99%), 1 G, 38765-83-2
Cayman Chemical (±)-Epinephrine-d3, Purity: ≥99% deuterated forms (d1-d3), CAS: 1189977-29-4, 25 mg
An internal standard for the quantification of (±)-epinephrine by GC- or LC-MS
Medchemexpress LLC 9H-fluoren-9-one-d8 | 137219-34-2 | 98.9% | 10 MG
9H-Fluoren-9-one-d8 is the deuterium-labeled analogue of fluorenone supplied as a solid isotopically labeled standard for analytical workflows. It functions as a tracer and internal standard to support accurate quantitation and method validation in research, environmental, and drug-development applications.
- Deuterium-labeled internal standard for quantitative analysis.
- Suitable for NMR, GC-MS, and LC-MS applications.
- High isotopic enrichment with reported purity of 98.87%.
- Solid form for straightforward handling and storage.
- Available in small-mass pack sizes for analytical use.
Medchemexpress LLC Benzyl alcohol-d7 | 71258-23-6 | 99.56% | 50 MG
Benzyl alcohol-d7 is the deuterium labeled Benzyl alcohol, an aromatic alcohol that is a colorless liquid with a mild pleasant aromatic odor. It can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Used as a tracer
- Functions as an internal standard for quantitative analysis (NMR, GC-MS, LC-MS)
- Store pure form at -20°C for 3 years or 4°C for 2 years
- Store in solvent at -80°C for 6 months or -20°C for 1 month
- Keep container tightly sealed in a cool, well-ventilated area
- Keep away from direct sunlight and sources of ignition
- Stable under recommended storage conditions
Medchemexpress LLC Anthraquinone-d8 | 10439-39-1 | 216.26 | 5 MG
Anthraquinone-d8 is a deuterium-labeled compound, primarily utilized as a precursor for dye formation. It serves as a valuable tracer and internal standard in quantitative analysis, making it suitable for various research applications.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Deuterium substitution can affect the pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC Melamine-13C3 | 1173022-88-2 | 129.10 | 13C3H6N6 | 1mg
Melamine-13C3 is the 13C labeled Melamine[1] Melamine is a metabolite of cyromazine Melamine is a intermediate for the synthesis of melamine resin and plastic materials[2]
Medchemexpress LLC Benzoic acid, 3,6-dichloro-2-(methoxy-d3)- | 349553-95-3 | 99.7% | 5 MG
Dicamba-d3 is a deuterium-labeled isotopologue of dicamba supplied for analytical and research use. It is used as a tracer and internal standard for quantitative methods, enabling accurate measurement in NMR, GC-MS, and LC-MS workflows.
- Deuterium-labeled internal standard for quantitative analysis.
- Suitable for NMR, GC-MS, and LC-MS applications.
- High purity (HPLC 99.7%) for accurate quantitation.
- Molecular weight 224.06 g/mol; formula C8H3D3Cl2O3.
- Stable when stored as a powder at -20°C.
Medchemexpress LLC Trospium-d8 chloride | 10405-02-4 | 1 MG
Trospium-d8 (chloride) is the deuterium-labeled form of Trospium chloride. Trospium chloride is an orally active, specific, and competitive antagonist of muscarinic cholinergic receptors (mAChRs), exhibiting antimuscarinic activity. It binds with high affinity to muscarinic receptors M1, M2, and M3, but not nicotinic cholinergic receptors.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Incorporation of stable heavy isotopes can affect pharmacokinetic and metabolic profiles of drugs