Isotopically Labeled Compounds
Medchemexpress LLC Riboflavin-d3 (Vitamin B2-d3) | 83-88-5 | 99.9% | 5 MG
Riboflavin-d3, also known as Vitamin B2-d3 or E101-d3, is the deuterium labeled form of Riboflavin. Riboflavin is an easily absorbed micronutrient that plays a key role in maintaining health in humans and other animals. This product is intended for research use only.
- Tracer.
- Internal standard for quantitative analysis methods such as NMR, GC-MS, or LC-MS.
- Incorporation of stable heavy isotopes like deuterium into drug molecules for quantitation during drug development.
- Potential to influence the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Tristearin-d5 | 55256-03-6 | 98.9% | 25 MG
Tristearin-d5 is a deuterium-labeled Tristearin, a triglyceride derived from three units of stearic acid. This compound has several applications:
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC 2'-Deoxycytidine-15N3 | 951-77-9 | 99.7% | 1 MG
2'-Deoxycytidine-15N3 is the 15N labeled 2'-Deoxycytidine. 2'-Deoxycytidine, a deoxyribonucleoside, can inhibit biological effects of Bromodeoxyuridine (Brdu). It is for research use only and not sold to patients.
- This compound can be used as a tracer.
- This compound 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, largely as tracers for quantitation during the drug development process.
Sigma Aldrich Fine Chemicals Biosciences 1-Methylnaphthalene-d10 98 atom % D, 98% (CP) | 38072-94-5 | MFCD00134450 | 5G
1-Methylnaphthalene-d10 98 atom % D, 98% (CP) | Purity: 98% (CP) | Mol Wt: 152.26 | 38072-94-5 | MFCD00134450 | 5G
Medchemexpress LLC NBD Sphingosine | 1449370-25-5 | ≥99.0% | 50 UG
NBD Sphingosine (NBD-Sph) is a fluorochrome, a fluorescence-labeled sphingosine. It can be used for fluorescence assays for sphingosine kinases.
- Used for fluorescence assays for sphingosine kinases
- Fluorochrome
- Fluorescence-labeled sphingosine
Cambridge Isotope Laboratories Acetone-D6, 666-52-4, MFCD00044635, 25 g
Chemical Formula: CD3COCD3, MW: 64.12, 99.9%, Synonyms: Propanone; beta-Ketopropane; Dimethylketone.
Medchemexpress LLC 2'-Deoxyuridine-13C,15N2 | 369656-76-8 | 98.1% | 1 MG
2'-Deoxyuridine-13C,15N2 is the 13C and 15N labeled 2'-Deoxyuridine, a compound that can increase chromosome breakage and decrease thymidylate synthetase activity. It is also known as a precursor in the synthesis of Edoxudine.
- Can increase chromosome breakage.
- Results in decreased thymidylate synthetase activity.
- Precursor in the synthesis of Edoxudine.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC Lactic acid-d4 sodium | 344299-52-1 | 99.0% | 116.08 g/mol | C3HD4NaO3 | 10 MG
Lactate-d4 sodium is the deuterium-labeled sodium salt of lactic acid provided as a 60% w/w aqueous solution for use as an isotopic tracer and analytical standard. The reagent is intended for research applications in metabolomics and biochemical studies and is characterized by high isotopic/purity and a molecular weight of 116.08 g/mol (CAS 344299-52-1).
- Deuterium-labeled endogenous metabolite for tracer and quantitation studies.
- Supplied as a 60% w/w aqueous solution for ease of handling.
- High isotopic/purity suitable for mass spectrometry and analytical workflows.
- Applicable to studies of lactate metabolism, HCAR1 signaling, and lysine lactylation.
- Available in small pre-weighed quantities for research use.
Medchemexpress LLC Robenidine-d8 hydrochloride | 1173097-77-2 | 99.0% | 378.71 g/mol | C15H6D8Cl3N5 | 10 MG
Robenidine-d8 hydrochloride is the deuterium-labeled hydrochloride salt of robenidine, provided as a high-purity analytical standard for laboratory research. It is used in biochemical and microbiological studies, including investigations of antimicrobial activity and analytical method development.
- Deuterium-labeled analog of robenidine.
- Hydrochloride salt form for improved stability.
- High purity suitable for analytical applications.
- Provided in a small research quantity for laboratory use.
- Useful in antimicrobial and method-development studies.
Medchemexpress LLC Metolachlor-d6 | 1219803-97-0 | 98.6% | 289.83 g·mol⁻1 | C15H16D6ClNO2 | 10 MG
Metolachlor-d6 is the deuterium-labeled analogue of metolachlor, provided as an isotope-labeled reference standard for analytical and tracer applications. It is intended for use as an internal standard in mass spectrometry and related analytical workflows.
- Deuterium-labeled internal standard for LC-MS/MS quantitation.
- Chemical purity 98.58% (HPLC).
- Molecular weight 289.83 g·mol⁻1; CAS 1219803-97-0.
- Supplied as a 10 MG solid; store at -20°C for long-term stability.
- Suitable as a tracer in ADME and analytical method development.
Medchemexpress LLC Pefloxacin-d5 (pefloxacinium-d5) | 1228182-51-1 | MFCD16652561 | 98.3% | 338.39 | C17H15D5FN3O3 | 10 MG
Pefloxacin-d5 is the deuterium-labeled analogue of the fluoroquinolone antibiotic pefloxacin, provided as a high-purity stable isotope standard for use as an internal standard in quantitative mass spectrometry, pharmacokinetic, and infection studies.
- High purity (98.3%).
- Chemical formula: C17H15D5FN3O3.
- Molecular weight: 338.39.
- CAS number: 1228182-51-1.
- Suitable for quantitative LC-MS/MS and pharmacokinetic studies.
- 10 mg packaging available.
Medchemexpress LLC 1-hexadecanol-d5 | 1219799-18-4 | 99.2% | 10 MG
1-Hexadecanol-d5 is the deuterium-labeled analogue of 1-hexadecanol, provided as a high-purity stable isotope standard for analytical use. It is supplied as a white to off-white solid and is intended for use as a tracer or internal standard in quantitative NMR, GC-MS, and LC-MS analyses.
- High purity: 99.20%.
- Molecular formula: C16H29D5O; molecular weight: 247.47.
- Available in small analytical pack sizes, including 10 mg.
- Soluble in DMSO; warming and sonication can improve dissolution.
- Suitable as a tracer and internal standard for quantitative analysis.
- Storage: powder -20°C (3 years) or 4°C (2 years); in solvent -80°C (6 months) or -20°C (1 month).
- Appearance: white to off-white solid.
Medchemexpress LLC Cefotaxime-d3 | 63527-52-6 | 98.0% | 458.48 g/mol | C16H14D3N5O7S2 | 1 MG
Cefotaxime-d3 is the deuterium-labeled isotopologue of the third-generation cephalosporin cefotaxime, supplied as a solid for use as an analytical internal standard and tracer in quantitative methods such as NMR, GC-MS, and LC-MS.
- Deuterium-labeled internal standard for quantitative assays.
- High purity: 98.0%.
- Chemical formula: C16H14D3N5O7S2.
- Molecular weight: 458.48 g/mol.
- Appearance: white to off-white solid.
- Intended applications: tracer, calibration, and bioanalytical quantitation.
- Available in 1 mg size; larger sizes available by quote.
Medchemexpress LLC L-Valine-1-13C | 81201-85-6 | 118.14 | 5 MG
L-Valine-1-13C | 81201-85-6 | 118.14 | 5 MG