Isotopically Labeled Compounds
Cambridge Isotope Laboratories 4-FLUOROANILINE (15N, 95%+), 0.5 G, 24226-40-2
4-FLUOROANILINE (15N, 95%+), 0.5 G, 24226-40-2
Cambridge Isotope Laboratories INOSINE 5'-MONOPHOSPHATE, AMMONIUM SALT (15N4, 98-99%) CHEM PUR. >90% (IN SOLN), 100 UMOL
INOSINE 5'-MONOPHOSPHATE, AMMONIUM SALT (15N4, 98-99%) CHEM PUR. >90% (IN SOLN), 100 UMOL
Medchemexpress LLC N1-acetylspermine-d3 trihydrochloride | 77928-70-2 | MFCD00083219 | 99.9% | 356.78 g/mol | C12H28D3Cl3N4O | 1 MG
N1-acetylspermine-d3 trihydrochloride is a deuterium-labeled isotopic standard of N1-acetylspermine provided as the trihydrochloride salt. It is intended for use as an internal standard in analytical methods, particularly mass spectrometry and metabolomics studies of polyamine metabolism.
- Deuterium-labeled internal standard suitable for mass spectrometry quantification.
- High isotopic and chemical purity for accurate tracing and minimal interference.
- Trihydrochloride salt form improves stability and solubility in aqueous solutions.
- Supplied in small analytical pack sizes appropriate for method development.
Medchemexpress LLC Cycloguanil-d6 (chlorguanide triazine-d6) | 516-21-2 | 98.0% | 1 MG
Cycloguanil-d6 is a deuterium-labeled version of Cycloguanil, a dihydrofolate reductase (DHFR) inhibitor. It disrupts the folate metabolic pathway, affecting nucleotide synthesis and DNA replication. This compound inhibits DHFR in Plasmodium, useful in malaria research, and also in human cancer cells, demonstrating anticancer properties. Stable heavy isotopes are incorporated for use as tracers in drug development.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Inhibits dihydrofolate reductase (DHFR).
- Disrupts the folate metabolic pathway.
- Affects nucleotide synthesis and DNA replication.
- Useful in malaria research.
- Demonstrates anticancer properties.
Cambridge Isotope Laboratories 21-DEOXYCORTISOL (2,2,4,6,6,21,21,21-D8, 97%), 0.01 G
21-DEOXYCORTISOL (2,2,4,6,6,21,21,21-D8, 97%), 0.01 G
Medchemexpress LLC D-Fructose-13C2 | 2483736-14-5 | 5 MG
D-Fructose-13C2 is the 13C labeled D-Fructose. D-Fructose (D(-)-Fructose) is a naturally occurring monosaccharide found in many plants. This product is for research use only and not sold to patients.
- 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 of hydrogen, carbon, and other elements have been incorporated into drug molecules for quantitation during drug development.
- Deuteration can affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Entrectinib-d8 | 2251773-94-9 | 99.8% | 568.69 | C31H26D8F2N6O2 | 5 MG
Entrectinib-d8 is a deuterium-labeled analogue of entrectinib used as an internal standard and reference material for quantitative LC-MS/MS, ADME, and drug metabolism studies. Supplied as a high-purity powder with good solubility in DMSO, it preserves the parent compound's mass-spectrometric behavior while enabling precise tracer-based quantitation. Formula: C31H26D8F2N6O2; molecular weight: 568.69.
- Deuterium-labeled for reliable mass-spectrometry quantitation.
- High reported purity for analytical applications.
- Good solubility in DMSO (≈100 mg/mL).
- Powder form suitable for long-term storage.
- Suitable for ADME, metabolite, and tracer studies.
- Facilitates accurate internal standardization in LC-MS/MS assays.
Cambridge Isotope Laboratories 2 2 2-Trifluoroethanol-D3 (D 99%) 5 x 1 g
2 2 2-Trifluoroethanol-D3 (D 99%) 5 x 1 g
Medchemexpress LLC L-Tryptophan-d5 | 62595-11-3 | 209.26 | 25 MG
L-Tryptophan-d5 is a deuterium-labeled form of L-Tryptophan, an essential amino acid and a precursor to serotonin, melatonin, and vitamin B3. This product is intended 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.
- Has a purity of 99.86% to 99.94%.
- Contains deuterium, which can affect pharmacokinetic and metabolic profiles of drugs.
- Appears as a solid with a yellow to orange color.
- Store at 4°C, protected from light, under nitrogen.
- For solutions, store at -80°C for 6 months or -20°C for 1 month, protected from light, under nitrogen.
Medchemexpress LLC Amiodarone-d10 hydrochloride | 1261393-77-4 | MFCD25976575 | 98.8% | 691.83 | C25H20D10ClI2NO3 | 5 MG
Amiodarone-d10 hydrochloride is a deuterium-labeled analogue of the antiarrhythmic compound amiodarone, provided as the hydrochloride salt and intended for research use as a stable isotope reference standard and analytical internal standard for LC-MS applications.
- Deuterium-labeled (d10) for use as a stable isotope internal standard.
- Hydrochloride salt supplied as a solid for convenient handling and storage.
- High purity: 98.8% by analysis, suitable for quantitative assays.
- Molecular weight ~691.83 Da, molecular formula C25H20D10ClI2NO3.
- Available in small research-scale quantities for analytical method development.
Medchemexpress LLC 1,3-propanediol-d8 | 285978-25-8 | MFCD01074016 | 98.9% | 84.14 g·mol⁻¹ | C3D8O2 | 1 MG
1,3-Propanediol-d8 is the deuterium-labeled analogue of 1,3-propanediol used as an isotope-labeled standard and reagent in analytical and synthetic research. It offers high isotopic enrichment and is provided in small, well-characterized quantities suitable for calibration, tracer studies, and method development.
- Deuterium-labeled analogue for isotope tracing and standards.
- High purity suitable for analytical applications (listed as 98.9%).
- Suitable for GC-MS, NMR, and mass spectrometry workflows.
- Provided in milligram-scale packages for standards and calibration.
- Comes with documentation such as data sheet, certificate of analysis, and safety data sheet.
Cambridge Isotope Laboratories 1,2-DIBROMOETHANE (1,2-13C2, 99%) AIR FREIGHT FORBIDDEN, 1 G, 33458-49-0
1,2-DIBROMOETHANE (1,2-13C2, 99%) AIR FREIGHT FORBIDDEN, 1 G, 33458-49-0
Cambridge Isotope Laboratories HEPTADECANOIC ACID (D33, 98%), 0.5 G, 352431-41-5
HEPTADECANOIC ACID (D33, 98%), 0.5 G, 352431-41-5