Other Solvents
Medchemexpress LLC D-tyrosine-d4 | 944386-47-4 | 99.0% | 185.21 g/mol | C9H7D4NO3 | 5mg
D-Tyrosine-d4 is the deuterium labeled D-Tyrosine (HY-Y0444)[1] D-Tyrosine is the D-isomer of tyrosine D-Tyrosine negatively regulates melanin synthesis by inhibiting tyrosinase activity D-Tyrosine inhibits biofilm formation and trigger the self-dispersal of biofilms without suppressing bacterial growth[2][3]
Medchemexpress LLC Uridine-d2-1 | 40632-21-1 | 98.5% | 1 MG
Uridine-d2-1 is the deuterium labeled Uridine. This compound can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs.
- Deuterium labeled uridine.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuteration has potential to affect pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC L-homocysteine-d4 | 331665-12-4 | 94.9% | 139.21 | C4H5D4NO2S | 500 UG
L-Homocysteine-d4 is a deuterium-labeled analogue of the amino acid L-homocysteine, supplied as an isotopic reference material for analytical and research applications. It is intended for use as an internal standard, tracer, or reference in quantitative assays that require a stable isotope-labeled compound. Follow the supplier COA and SDS for purity, handling, and storage recommendations.
- Deuterium-labeled L-homocysteine for isotope-dilution assays.
- Suitable as an internal standard for LC-MS/MS and GC-MS quantitation.
- High purity suitable for analytical use (verify COA for batch-specific value).
- Molecular weight approximately 139.21 and formula C4H5D4NO2S.
- Provided in small-quantity solid format for trace-level standards.
Medchemexpress LLC Ipratropium-d3 bromide | 98.0% | 415.38 | C20H27D3BrNO3 | 10 MG
Deuterium-labeled ipratropium bromide supplied as a solid research standard for analytical applications. It is intended for use as an internal standard or tracer in mass spectrometry and quantitative assays, providing mass-differentiation for accurate measurement of ipratropium in biological samples.
- Deuterium-labeled internal standard for mass spectrometry
- Suitable for analytical quantification and tracer studies
- Reported purity 98.0%
- Molecular formula C20H27D3BrNO3 and molecular weight 415.38
- Store sealed at 4°C; in solvent store at -80°C (up to 6 months) or -20°C (up to 1 month)
Medchemexpress LLC Propanoic-13C sodium | 62601-06-3 | MFCD00002758 | 99.6% | 97.05 g/mol | 13C C3H5NaO2 | 10 MG
Sodium propionate labeled with 13C is the isotopically labeled sodium salt of propionic (propanoic) acid supplied for use as a tracer or internal standard in analytical chemistry (NMR, GC-MS, LC-MS). It is provided as a white solid for research use only and should be stored sealed, away from moisture and light.
Medchemexpress LLC Lactate-d3 sodium | 1219802-24-0 | 98% | 1 MG
Lactate-d3 sodium | 1219802-24-0 | 98% | 1 MG
Medchemexpress LLC Benzothioamide-d5 | 1219804-59-7 | 142.23 | C7H2D5NS | 100 MG
Benzothioamide-d5 is the deuterium-labeled analogue of benzothioamide used as a stable-isotope standard and tracer for analytical and mechanistic studies. Supplied as a solid, it is intended for use as an internal standard in mass spectrometry and as a reference in NMR experiments.
- Deuterium-labeled (d5) for clear mass shift in MS analyses
- Suitable as an internal standard for LC-MS, GC-MS, and NMR
- Supplied as a solid for convenient handling and storage
- Stable under recommended storage conditions for long-term use
- Useful as a tracer in mechanistic and quantitative studies
Medchemexpress LLC Diphenylsulfane-d1 | 180802-01-1 | 99.5% | 187.28 g/mol | C12H9DS | 5 MG
Diphenylsulfane-d1 is the deuterium-labeled analogue of diphenylsulfane (diphenyl sulfide), supplied in small research quantities as an isotopically labeled reference or tracer for analytical, mechanistic, and mass spectrometry applications.
- Deuterium-labeled at one position (d1) for isotopic tracing.
- High chemical purity suitable for use as an analytical standard.
- Provided in small-quantity packaging tailored for research use.
- Suitable as an internal standard in mass spectrometry and quantitative analysis.
- Chemical identity corresponds to formula C12H9DS and molar mass ~187.28 g/mol.
Cayman Chemical Felbamate-d4 500ug
An internal standard for the quantification of felbamate by GC- or LC-MS
![Revvity Health Sciences Inc Cysteine L-[<sup>35</sup>S]-, 5mCi (185MBq), 10mM DTT](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502810791.jpg-250.jpg)
Revvity Health Sciences Inc Cysteine L-[35S]-, 5mCi (185MBq), 10mM DTT
Cysteine L-[35S]-, 5mCi (185MBq), 10mM DTT
Cambridge Isotope Laboratories GLYCAN-O15-13C-GAL4 (GALACTOSE-13C6, 99%), 500 PMOL
GLYCAN-O15-13C-GAL4 (GALACTOSE-13C6, 99%), 500 PMOL
Medchemexpress LLC o-Toluic acid-13C | 70838-82-3 | 977702 | 99% | 137.14 | 50 MG
o-Toluic acid-13C is the 13C labeled o-Toluic acid, which is a benzoic acid substituted by a methyl group at position 2. It plays a role as a xenobiotic metabolite.
- Isotope-labeled compounds
- Endogenous metabolite
- Stable heavy isotope of carbon (13C)
- Appearance: solid
- Color: white to off-white
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Cambridge Isotope Laboratories Algal lyophilized cells (U-D 98%) 1 g
Algal lyophilized cells (U-D 98%) 1 g
Cayman Chemical DesloratdIn-d4 1mg
An internal standard for the quantification of desloratadine by GC- or LC-MS
Medchemexpress LLC Buspirone-d8 hydrochloride | 1216761-39-5 | 1 MG
Buspirone-d8 (hydrochloride) is the deuterium labeled Buspirone hydrochloride. Buspirone hydrochloride is an anxiolytic psychotropic agent, used to treat generalized anxiety disorder (GAD).
- 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.