Isotopically Labeled Compounds
Cambridge Isotope Laboratories DEUTERIUM HYDRIDE (D, 97%), 1 L, 13983-20-5
**This item is shipped in a Code K-460 stainless steel lecture bottle. The fee for the bottle will need added to the order as a separate charge per each. Please include part# NC1708343 to the order
Medchemexpress LLC L-glutamine-13C5,15N2 | 285978-14-5 | 98.0% | 153.09 g/mol | 13C5H10 15N2 O3 | 10 MG
L-Glutamine-13C5,15N2 is an isotopically labeled form of L-glutamine in which five carbon atoms are 13C and two nitrogen atoms are 15N. Supplied as a 10 mg solid with 98.0% purity, it is intended for use as an internal standard, tracer, or NMR reference in metabolic and mass spectrometry studies.
- Isotopically labeled (13C5, 15N2).
- High purity: 98.0%.
- Supplied as a 10 mg solid.
- Suitable for metabolic tracing and flux analysis.
- Appropriate as an internal standard for mass spectrometry.
- Useful for NMR and structural studies.
Medchemexpress LLC Toceranib-d8 | 1795134-78-9 | 99.1% | 404.51 g/mol | C22H17D8FN4O2 | 1 MG
Toceranib-d8 is the deuterium-labeled isotopologue of toceranib, provided as a research-grade analytical standard for laboratory use. It is intended for use as a stable isotope internal standard in LC-MS/MS, pharmacokinetic, and tracer studies to enable accurate quantitation and differentiation from the unlabeled compound.
- Deuterium-labeled internal standard for LC-MS/MS assays.
- High purity (>99%) suitable for analytical applications.
- Intended for pharmacokinetic, bioanalytical, and tracer studies.
- Provided as a small-quantity vial for reference and method development.
Medchemexpress LLC p-Toluic acid-d3 | 19215-16-8 | >98.0% | 139.17 g/mol | C8H5D3O2 | 10 MG
p-Toluic acid-d3 (4-methylbenzoic acid-d3) is the deuterium-labeled form of p-toluic acid, intended for analytical and synthetic use. It is used as a tracer and internal standard for quantitative analysis by NMR, GC-MS, or LC-MS, and as an intermediate in organic synthesis.
- Used as an internal standard for NMR, GC-MS, and LC-MS quantitative analysis.
- Suitable as a synthetic intermediate for organic chemistry applications.
- Available in small-scale quantities for analytical use, e.g., 10 MG.
- Chemical purity min 98% with isotopic enrichment typically 98 atom % D.
Cambridge Isotope Laboratories Benzoic acid (carboxyl-13C 99%) 1 g
Benzoic acid (carboxyl-13C 99%) 1 g
Medchemexpress LLC Anthraquinone-d8 | 10439-39-1 | 216.26 | C14D8O2 | 10 MG
Anthraquinone-d8 is the deuterium-labeled analogue of anthraquinone used as an internal standard and tracer for quantitative analysis by NMR, GC-MS, and LC-MS, and as a precursor for dye synthesis. It is supplied as a pre-weighed solid (light yellow to yellow) suitable for analytical and research use.
- Deuterium-labeled (d8) isotopologue for tracer and internal standard use.
- Molecular formula: C14D8O2; molecular weight: 216.26.
- CAS number: 10439-39-1 for unambiguous identification.
- Appearance: light yellow to yellow solid suitable for handling in dry form.
- Storage: stable at room temperature for extended storage; in solvent, store at low temperatures as specified.
- Applications: quantitative NMR, GC-MS, LC-MS, and precursor for dye formation.
Cambridge Isotope Laboratories ALPHA-KETOISOVALERIC ACID, SODIUM SALT (3-METHYL-13C,99%;3-METHYL-D2-3,4,4,4-D4,98%), 0.25 G
ALPHA-KETOISOVALERIC ACID, SODIUM SALT (3-METHYL-13C,99%;3-METHYL-D2-3,4,4,4-D4,98%), 0.25 G
Medchemexpress LLC L-ornithine-d7 hydrochloride | 2483831-57-6 | 99.9% | 175.67 | C5H6D7ClN2O2 | 1 MG
L-Ornithine-d7 hydrochloride is the deuterium-labeled hydrochloride salt of the amino acid L-ornithine, provided as a white to off-white solid. It is intended for use as an isotope-labeled reference standard and internal standard for analytical workflows such as LC-MS and stable isotope tracing in metabolomics and biochemical studies. High isotopic labeling and high purity support accurate quantitation.
- Deuterium-labeled (d7) analog for isotope tracing and internal standard use.
- High purity for reliable quantitative analysis.
- Solid, easy-to-weigh form for preparation of small-volume standards.
- Hydrochloride salt improves solubility in aqueous media.
- Suitable for LC-MS and metabolomics workflows.
Cambridge Isotope Laboratories HYDROQUINONE (D6, 98%), 5 G, 71589-26-9
HYDROQUINONE (D6, 98%), 5 G, 71589-26-9
Revvity Health Sciences Inc Sulfur-35 Radionuclide, 10mCi (370MBq), Specific Activity: 250-1000mCi (9.25-37.0GBq)/mmol
Sulfur-35 Radionuclide, 10mCi (370MBq), Specific Activity: 250-1000mCi (9.25-37.0GBq)/mmol
Medchemexpress LLC Docosanoic acid-d4-1 | 1219804-98-4 | 99.0% | 344.61 | 10 MG
Docosanoic acid-d4-1 (Behenic acid-d4-1) is the deuterium labeled Docosanoic acid. It is a long-chain saturated fatty acid that inhibits the double-stranded DNA (dsDNA) binding activity of p53 DNA binding domain, with a Kd of 12 nM. Docosanoic acid has low bioavailability and can increase cholesterol in humans. It can be used as a tracer and as an internal standard for quantitative analysis.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Cayman Chemical GlycodeoxycholIc AcId-d4 5mg
An internal standard for the quantification of glycodeoxycholic acid by GC- or LC-MS
Medchemexpress LLC Arachidic acid-d39 | 39756-32-6 | 351.77 | 10 MG
Arachidic acid-d39 is the deuterium labeled Arachidic acid (HY-W004260), also known as Eicosanoic acid. It is a long-chain saturated fatty acid found in plasma phospholipid, fish, cannabis, and other plant oils. This compound can be used for anti-cancer drug delivery research when conjugated with Chitosan oligosaccharide.
- Used as a tracer.
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes are incorporated into drug molecules as tracers for quantitation.
- Deuteration affects pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Procymidox-d5 | >95.0% | 289.17 | C13H6D5Cl2NO2 | 5 MG
Procymidox-d5 is the deuterium-labeled analogue of procymidone supplied as an isotope-labeled reference for analytical workflows. It is intended for use as a tracer or internal standard to improve accuracy and precision in quantitative NMR, GC-MS, and LC-MS measurements, compensating for extraction and ionization variability in sample analysis.
- Deuterium-labeled internal standard for NMR, GC-MS, and LC-MS quantitation.
- Isotope composition reflected in molecular formula C13H6D5Cl2NO2.
- Molecular weight 289.17.
- Purity >95.0% (HPLC) as stated by supplier listings.
- Supplied as a small research-grade vial (5 MG) for analytical use.
- Store under conditions specified on the certificate of analysis.
Cambridge Isotope Laboratories D-FRUCTOSE (2-13C, 99%), 1 G, 117013-19-1
D-FRUCTOSE (2-13C, 99%), 1 G, 117013-19-1