Isotopically Labeled Compounds
Cambridge Isotope Laboratories L-ALANINE (3-13C, 99%), 1 G, 65163-25-9
L-ALANINE (3-13C, 99%), 1 G, 65163-25-9
Medchemexpress LLC 1,2-dimethyl-5-nitroimidazole-d3 | 64678-69-9 | MFCD09265282 | 99.9% | 144.15 | C5H4D3N3O2 | 10 MG
Dimetridazole-d3 is the deuterium-labeled analog of dimetridazole supplied as a solid analytical standard for research and quantitative analysis. It is used as an internal standard or isotopic tracer in mass spectrometry and other analytical workflows, providing well-defined isotopic composition and traceability.
- Isotope-labeled internal standard for mass spectrometry.
- High purity (≈99.9%) suitable for analytical use.
- Molecular weight 144.15 and formula C5H4D3N3O2.
- Provided as a 10 MG solid powder; other pack sizes available.
- Powder storage: -20 °C (3 years) or 4 °C (2 years); in solvent: -80 °C (6 months).
Medchemexpress LLC Tolbutamide-d9 | 1219794-57-6 | MFCD06658779 | 99.0% | 279.40 g·mol⁻¹ | C12H9D9N2O3S | 10 MG
Tolbutamide-d9 is the deuterium-labeled analogue of tolbutamide used as an analytical internal standard and tracer for quantitative assays and method development. It is intended for use in LC-MS, GC-MS, NMR, and pharmacokinetic/ADME studies where an isotopically labeled reference improves accuracy and precision.
- Deuterium-labeled internal standard for quantitative LC-MS and GC-MS
- High isotopic and chemical purity for accurate quantitation
- Suitable for pharmacokinetic and ADME studies
- Provided in small analytical pack sizes for trace-level work
- Well characterized for analytical method development and validation
Medchemexpress LLC 2-aminoethanesulfonic acid-13C2 | 70155-54-3 | MFCD01075566 | 99.0% | 127.13 g/mol | 13C2H7NO3S | 10 MG
Taurine-13C2 is a 13C-labeled form of taurine (2-aminoethanesulfonic acid) provided as a stable isotope standard for analytical and research use. It is supplied as a neat powder intended for use as an internal standard in mass spectrometry, isotope-dilution assays, and metabolic tracer studies.
- 13C2-labeled taurine for use as an internal standard and tracer.
- High isotopic enrichment and 99.0% purity.
- Neat powder form, suitable for mass spectrometry and analytical workflows.
- Small-mass package formats for isotope-dilution and tracer studies.
- Molecular weight 127.13 g/mol; CAS number 70155-54-3.
Medchemexpress LLC 1-Bromotridecane-d4 5mg
1-Bromotridecane-d4 is the deuterium labeled 1-Bromotridecane[1]
Medchemexpress LLC L-lysine-13C dihydrochloride | 202190-50-9 | 99.9% | 220.10 | C5(13C)H16Cl2N2O2 | 10 MG
L-lysine-13C dihydrochloride is a stable-isotope labelled form of the essential amino acid L-lysine, provided as the dihydrochloride salt for tracer, metabolic, and mass-spectrometry studies. It is 13C-labelled at the carboxyl carbon and supplied as a white to off-white solid with high chemical purity.
- 13C-labelled at the carboxyl carbon for tracer and mass-spectrometry applications.
- Provided as the dihydrochloride salt for improved solubility and stability.
- High purity (99.9%) suitable for research use.
- White to off-white solid; molecular weight 220.10 g/mol.
- CAS number 202190-50-9 for unambiguous identification.
- Storage: store sealed at 4°C; in solvent, store at -80°C (6 months) or -20°C (1 month).
Medchemexpress LLC Adenine-d (6-aminopurine-d1) | 109923-52-6 | MFCD06658867 | 99.9% | 136.13 | C5H4DN5 | 10 MG
Adenine-d (6-aminopurine-d1) is the deuterium-labeled analogue of adenine, supplied as a stable-isotope reagent for biochemical and analytical research. It is intended for metabolic labeling, mass spectrometry reference standards, and studies of nucleic acid metabolism.
- Deuterium-labeled adenine for isotope tracing and analytical studies.
- Chemical formula C5H4DN5.
- Molecular weight 136.13 g/mol.
- Purity 99.9% by specification.
- CAS number 109923-52-6 for unambiguous identification.
- Supplied as a powder commonly in a 10 MG package; store powder at -20°C for long-term stability.
Cambridge Isotope Laboratories ETHYL ACETATE (2-13C, 99%), 5 G, 58735-82-3
ETHYL ACETATE (2-13C, 99%), 5 G, 58735-82-3
Medchemexpress LLC Celecoxib-d7 | 544686-21-7 | 99.6% | C17H7D7F3N3O2S | 500 UG
Celecoxib-d7 is the deuterium-labeled form of Celecoxib, a selective non-steroidal anti-inflammatory drug (NSAID) and COX-2 inhibitor with an IC50 of 40 nM. This compound can serve as a tracer and internal standard for quantitative analysis methods like NMR, GC-MS, or LC-MS. The incorporation of stable heavy isotopes into drug molecules, such as deuteration, is used for quantitation during drug development and can influence the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Incorporates stable heavy isotopes for quantitation during drug development
- Potential to affect pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC Sodium propionate-d3 | 1210410-35-7 | MFCD04975446 | 98.4% | 99.08 | C3H2D3NaO2 | 10 MG
Sodium Propionate-d3 is a deuterium-labeled form of sodium propionate intended for research use. It serves as an isotopically labeled standard or tracer in analytical, metabolic, and biochemical studies.
- Isotopically labeled standard for mass spectrometry and tracer studies.
- Molecular formula C3H2D3NaO2 and molecular weight 99.08.
- CAS number 1210410-35-7 for unique substance identification.
- Purity approximately 98.4% suitable for analytical applications.
- Supplied as a 10 MG solid for small-scale experiments.
Cambridge Isotope Laboratories L-SERINE (13C3, 99%; 15N, 99%), 0.5 G, 202407-34-9
L-SERINE (13C3, 99%; 15N, 99%), 0.5 G, 202407-34-9
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Revvity Health Sciences Inc Triolein, [9,10-3H(N)]-, 1mCi (37MBq)
Triolein, [9,10-3H(N)]-, 1mCi (37MBq)
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Revvity Health Sciences Inc Deoxy-D-glucose, 2-[1,2-3H(N)], 1 mCi (37 MBq)
Deoxy-D-glucose, 2-[1,2-3H(N)], 1 mCi (37 MBq)