Isotopically Labeled Compounds
Medchemexpress LLC Creatine-d3 | 143827-19-4 | 99.5% | 134.15 | 10 MG
Creatine-d3 is the deuterium labeled Creatine (HY-W010388). Creatine, an endogenous amino acid derivative, plays an important role in cellular energy, especially in muscle and brain. For research use only.
- 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. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Uracil | 202407-06-5 | MDL-MFCD01073456 | 98.0% | 118.04 g/mol | 13C4H4 15N2O2 | 10 MG
Uracil-13C4,15N2 is an isotopically labeled uracil provided as a solid research standard for analytical and tracer applications. Four carbon atoms are 13C and two nitrogens are 15N; the material is supplied at high purity and intended for use in mass spectrometry, metabolic labeling, and tracer studies.
- Isotopically labeled with 13C4 and 15N2.
- High purity: 98.0%.
- Suitable for mass spectrometry and tracer studies.
- Available in small research quantities (10 MG).
- Supplied as a solid for convenient handling and storage.
Medchemexpress LLC L-alanine N,N,O-d3 | 19470-97-4 | MFCD06658795 | 99.0% | 92.11 | C3H4D3NO2 | 10 MG
L-Alanine-d3-1 is the deuterium-labeled analogue of L-alanine used as a stable isotope tracer and internal standard for quantitative analytical methods. It is supplied as a high-purity isotopically labeled amino acid for use in NMR, GC-MS, and LC-MS assays, method development, and metabolic studies.
- Deuterium-labeled L-alanine (N,N,O-d3) for isotope tracing and standards.
- High purity suitable for quantitative analysis (99.0%).
- Compatible with NMR, GC-MS, and LC-MS applications.
- Useful as an internal standard for accurate quantitation.
- Provided in small research-scale quantities for method development.
Medchemexpress LLC Spermidine-d6 | 2514812-10-1 | 96.1% | 151.28 | C7H13D6N3 | 10 MG
Spermidine-d6 is a deuterium-labeled analog of spermidine supplied for use as a stable isotope tracer and internal standard in quantitative analytical methods (NMR, GC-MS, LC-MS). It is intended for research use and is provided with high purity and aqueous solubility for analytical workflows.
- Used as an internal standard for quantitative analysis.
- Deuterium labeling supports metabolic and tracer studies.
- High aqueous solubility (≥50 mg/mL) for convenient preparation.
- Stable under recommended storage conditions for long-term use.
- Offered in small package sizes suitable for analytical assays.
Medchemexpress LLC Octanoic acid-d3 | 156779-05-4 | MFCD00190494 | 99.1% | 147.23 g/mol | C8H13D3O2 | 10 MG
Octanoic acid-d3 is the deuterium-labeled (d3) analogue of octanoic (caprylic) acid provided as a high-purity isotopically labeled reagent for analytical and tracer applications. It is supplied as an oily liquid in small-quantity vials intended for use as internal standards in quantitative analyses such as NMR, GC-MS, and LC-MS.
- Deuterium-labeled internal standard for quantitative analysis.
- High isotopic enrichment (99.1% d3).
- Molecular weight 147.23 g/mol and formula C8H13D3O2.
- Supplied in small quantities suitable for analytical workflows.
- Suitable for NMR, GC-MS, LC-MS, and tracer studies.
Cambridge Isotope Laboratories TERT-BUTANOL (D9, 98%), 5 G, 25725-11-5
TERT-BUTANOL (D9, 98%), 5 G, 25725-11-5
Medchemexpress LLC Creatinine-d5 | 60-27-5 | MFCD28009754 | 99.9% | 118.15 g/mol | C4H2D5N3O | 10 MG
Creatinine-d5 is a deuterium-labeled internal standard of creatinine used as an analytical reference for isotope-dilution mass spectrometry and other biochemical assays. It provides a stable, isotopically enriched analogue for accurate quantification and method validation in research applications.
- Deuterium-labeled internal standard for LC-MS/MS quantification.
- High isotopic enrichment suitable for analytical accuracy.
- Supplied as a small, stable solid for easy handling and dissolution.
- Intended for research use only; not for human or diagnostic use.
Medchemexpress LLC 3,4,5-trihydroxybenzoic acid-d2 | 294660-92-7 | MFCD01311698 | 99.6% | 172.13 | C7H4D2O5 | 10 MG
Gallic acid-d2 (3,4,5-trihydroxybenzoic acid-d2) is a deuterium-labeled analog of gallic acid used as a stable isotope standard and tracer in analytical and metabolic studies. It provides a mass-shifted internal standard for LC-MS/MS and GC-MS assays, supporting accurate quantitation and metabolic tracing.
- High isotopic purity (99.59%) for reliable mass spectrometry results.
- Suitable as an internal standard for LC-MS/MS and GC-MS assays.
- Useful for metabolic tracing and isotope-dilution quantification.
- Comes as a 10 mg analytical pack for method development and calibration.
- Chemical identifiers: CAS 294660-92-7; molecular weight 172.13 g/mol.
Medchemexpress LLC D-(+)-xylose-2-13C | 131771-69-2 | 99.9% | 151.12 | C5H10O5 (13C at C-2) | 10 MG
Xylose-2-13C is a 13C-labelled form of D-xylose provided as a solid tracer and analytical standard for metabolic and analytical studies. It is suitable as an internal standard or tracer for NMR, GC-MS, and LC-MS quantitative analyses and can be used in biochemical or microbial fermentation research as a carbon source.
- Contains 10 mg of material.
- Purity 99.89%.
- Isotope labeling: 13C at the 2-position.
- CAS number 131771-69-2.
- Molecular weight 151.12 g/mol.
- Solubility: in DMSO ~50 mg/mL; requires ultrasonic and warming; hygroscopic DMSO affects solubility.
- Storage: store protected from light; in solvent: -80°C for 6 months, -20°C for 1 month.
- Appearance: white to off-white solid.
- Intended uses include tracer studies and use as an internal standard in analytical workflows.
Medchemexpress LLC 1,2-propylene-d6 carbonate | 202480-74-8 | MFCD00142486 | 98.7% | 108.13 | C4D6O3 | 50 MG
1,2-Propylene-d6 carbonate is the deuterium-labeled analogue of 1,2-propylene carbonate used as an analytical tracer and internal standard for quantitative NMR, GC-MS, and LC-MS. It is supplied as a high-purity, isotopically labeled small-molecule reagent for method development, calibration, and quantitation workflows.
- Deuterium-labeled (d6) isotopologue for mass and NMR differentiation.
- High purity (98.65%) suitable for analytical applications.
- Molecular weight 108.13 and chemical formula C4D6O3.
- Intended use as a tracer and internal standard for NMR, GC-MS, and LC-MS.
- Available in small package sizes for analytical and method development.
- Compatible with quantitative workflows and calibration procedures.
Cambridge Isotope Laboratories L-VALINE (13C5, 99%; 15N, 99%), 0.5 G, 202407-30-5
L-VALINE (13C5, 99%; 15N, 99%), 0.5 G, 202407-30-5
Medchemexpress LLC Pentan-3-amine-d5 | 1219802-43-3 | 92.19 g/mol | C5H8D5N | 10 MG
Pentan-3-amine-d5 is the deuterium-labeled analogue of pentan-3-amine intended for use as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, and LC-MS. Deuteration can influence pharmacokinetic and metabolic profiles, making this compound useful in drug development and analytical workflows.
- Use as a tracer for quantitation in analytical methods
- Suitable as an internal standard for NMR, GC-MS, and LC-MS
- Available in multiple sizes: 5 mg, 10 mg, 50 mg, 100 mg
- Storage: pure form -20°C (3 years) or 4°C (2 years); in solvent -80°C (6 months) or -20°C (1 month)
- Molecular formula C5H8D5N and molecular weight 92.19 g/mol
- Appearance: colorless to light yellow liquid
Medchemexpress LLC Methoxychlor-d6 | 106031-79-2 | MFCD12022229 | 98.2% | 351.69 g/mol | C16H9D6Cl3O2 | 10 MG
Methoxychlor-d6 is the deuterium-labeled isotopologue of Methoxychlor supplied as a solid research reagent for use as a stable isotope tracer or internal standard in analytical chemistry and mass spectrometry. It offers high chemical purity and isotopic labeling for accurate quantitation and metabolic studies.
- Deuterium-labeled analog suitable as an internal standard.
- High purity for accurate quantitation.
- Soluble in ethanol (100 mg/mL); ultrasonic assistance may be needed.
- Solid, white to off-white, convenient for small-scale handling.
- Supplied in a 10 mg pack for analytical and research use.
Cambridge Isotope Laboratories L-METHIONINE (13C5, 99%; 15N, 99%), 0.1 G, 202468-47-1
L-METHIONINE (13C5, 99%; 15N, 99%), 0.1 G, 202468-47-1
Cambridge Isotope Laboratories SODIUM FORMATE (13C, 99%), 5 G, 23102-86-5
SODIUM FORMATE (13C, 99%), 5 G, 23102-86-5