Isotopically Labeled Compounds
Cayman Chemical Flonicamid-15N,18O, Purity: ≥98%, CAS: 2483830-60-8, 1.2 mL
An internal standard for the quantification of flonicamid by GC- or LC-MS
Cayman Chemical L-Methionine-d3, Purity: ≥99% deuterated forms (d1-d3), CAS: 13010-53-2, 500 mg
An internal standard for the quantification of L-methionine by GC- or LC-MS
Cayman Chemical EmpaglIflozIn-d4 500ug
An internal standard for the quantification of empagliflozin by GC- or LC-MS
Medchemexpress LLC D-Fructose-13C2 | 2483736-14-5 | 10 MG
D-Fructose-13C2 is the 13C labeled form of D-Fructose, a naturally occurring monosaccharide found in many plants. This compound serves as a valuable tool for research, particularly as a tracer and an internal standard in various analytical techniques.
- Used as a tracer
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Cayman Chemical CIlastatIn-15N-d3 500ug
An internal standard for the quantification of cilastatin by GC- or LC-MS
Medchemexpress LLC Decanoic acid-d19 | 88170-22-3 | 98.4% | 191.38 | C10HD19O2 | 10 MG
Decanoic acid-d19 is the deuterium-labeled analogue of decanoic (capric) acid provided as a stable-isotope reagent for analytical and metabolic studies. It preserves the fatty acid backbone while incorporating 19 deuterium atoms, allowing clear mass and NMR separation from unlabeled material. Typical purity is 98.4% and the formula is C10HD19O2.
- Deuterium-labeled (d19) fatty acid for isotope tracing.
- High purity suitable for analytical applications (98.4%).
- Useful as an internal standard for GC-MS and LC-MS quantitation.
- Compatible with NMR and metabolic labeling studies.
- Available in multiple small package sizes for research use.
- COA and SDS available to support quality and handling.
Medchemexpress LLC Fumaric acid-d2 | 24461-32-3 | MFCD00144378 | 99.0% | 118.08 g/mol | C4H2D2O4 | 25 MG
Fumaric acid-d2 is the deuterium-labeled analog of fumaric acid used as a stable isotope standard and research reagent. It is supplied as a white to off-white solid with 99.0% purity and is intended for analytical, metabolic, and tracer studies. For research use only.
- Deuterium-labeled compound for tracer and analytical applications.
- High purity (99.0%) suitable for reference standards.
- Soluble in DMSO (≥ 100 mg/mL) for convenient stock preparation.
- Stable when stored as a powder at -20°C for long-term storage.
- Available in small mass sizes for analytical workflows.
Medchemexpress LLC Methanol-d1 | 1455-13-6 | MFCD00044213 | >99.0% | 33.048 g/mol | CH3OD | 25 G
Methanol-d1 (CH3OD) is a deuterium-labeled methanol used as a deuterated solvent, tracer, and internal standard in analytical chemistry and spectroscopic applications. It offers high isotopic purity for NMR, mass spectrometry, and tracer studies, and is supplied with safety documentation for handling and storage.
- Deuterium-labeled methanol (CH3OD).
- CAS number 1455-13-6.
- High isotopic purity (≥99.0%).
- Suitable as an NMR solvent and internal standard.
- Useful as a tracer in isotopic labeling and analytical workflows.
- Provided with an SDS for safe handling and transport.
Medchemexpress LLC Guanfacine-13C,15N3 | 1189924-28-4 | 250.07 | 1 MG
Guanfacine-13C,15N3 is the 13C and 15N labeled version of Guanfacine. Guanfacine is an orally active noradrenergic α2A agonist that selectively targets the α2A receptor subtype. It has been observed to cause hypotension and sedation. This compound is used in research related to various prefrontal cortex (PFC) cognitive disorders, such as Tourette's syndrome and attention deficit hyperactivity disorder (ADHD). The incorporation of stable heavy isotopes into drug molecules, like in Guanfacine-13C,15N3, is primarily for quantitation during drug development, with deuteration specifically noted for its potential impact on pharmacokinetic and metabolic profiles of drugs.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Cayman Chemical Miltefosine-d4, Purity: ≥99% deuterated forms (d1-d4), 5 mg
An internal standard for the quantification of miltefosine by GC- or LC-MS
Cayman Chemical Gallic Acid-d2, Purity: ≥99% deutereated forms (d1-d2), CAS: 294660-92-7, 10 mg
An internal standard for the quantification of gallic acid by GC- or LC-MS
Medchemexpress LLC n-Nonadecane-d40 | 39756-36-0 | 100 MG
n-Nonadecane-d40 is a deuterium labeled Nonadecane intended for research use only. Deuteration, the incorporation of stable heavy isotopes of hydrogen (deuterium) into drug molecules, has the potential to influence the pharmacokinetic and metabolic profiles of drugs.
- Utilized as a tracer
- Functions as an internal standard for quantitative analysis
- Suitable for methods such as NMR, GC-MS, or LC-MS
Cayman Chemical Rebamipide-d4, Purity: ≥99% deuterated forms (d1-d4), CAS: 1219409-06-9, 1 mg
An internal standard for the quantification of rebamipide by GC- or LC-MS
Medchemexpress LLC Desonide-13C3 | >98.0% | 419.49 | C21 13C3 H32 O6 | 1 MG
Desonide-13C3 is the 13C-labeled isotopologue of desonide provided for research use. It is intended as a tracer, internal standard, or analytical reference in studies of glucocorticoid receptor activity, inflammatory disease models, and Huntington's disease research. Supplied as a solid in small vials and accompanied by a certificate of analysis with storage recommendations.
- 13C-labeled isotopologue suitable for tracer and mass spectrometry internal standard use.
- High isotopic purity supports accurate quantitation in analytical workflows.
- Available in small-scale quantities for method development and validation.
- Supplied as a solid; follow the certificate of analysis for storage and handling.
- Intended for research use only; not for human or clinical use.
Cayman Chemical Mycophenolate Mofetil-d4, Purity: ≥99% deuterated forms (d1-d4), CAS: 1132748-21-0, 5 mg
An internal standard for the quantification of mycophenolate mofetil by GC- or LC-MS