Isotopically Labeled Compounds
Medchemexpress LLC Enalaprilat-d5 | 349554-00-3 | 99.5% | 1 MG
Enalaprilat-d5 is a deuterium-labeled form of Enalaprilat (MK-422), functioning as an angiotensin-converting enzyme (ACE) inhibitor. It can be utilized as a tracer and as an internal standard in various quantitative analyses.
- Deuterium-labeled ACE inhibitor
- Can be used as a tracer
- Internal standard for quantitative analysis
- Suitable for NMR, GC-MS, or LC-MS applications
- Targets angiotensin-converting enzyme (ACE)
- Involved in metabolic enzyme/protease pathway
Medchemexpress LLC Bexarotene-d4 | 2182068-00-2 | 98.5% | C24H24D4O2 | 1 MG
Bexarotene-d4 is a deuterium-labeled compound, serving as a selective retinoid X receptors (RXR) agonist. It is used as a tracer or an internal standard for quantitative analysis in various methods.
- Used for treating cutaneous T-cell lymphoma
- Suitable as a tracer for quantitative analysis
- Can be used as an internal standard for quantitative analysis
- Compatible with NMR, GC-MS, or LC-MS methods
Medchemexpress LLC Etoxazole-d5 | 98.0% | 364.44 g/mol | C21H18D5F2NO2 | 1 MG
Etoxazole-d5 is the deuterium-labeled form of etoxazole intended for use as an isotope-labeled reference in analytical and research applications. It is used as a tracer or internal standard for quantitation and environmental or metabolic studies.
- Isotope-labeled reference standard for analytical quantitation.
- Deuterated (D5) analog of etoxazole.
- Molecular weight: 364.44 g/mol.
- Chemical formula: C21H18D5F2NO2.
- Available in small-quantity packs suitable for standards (e.g., 1 mg).
Cambridge Isotope Laboratories 1-BROMODODECANE (METHYL-D3, 98%), 1 G
1-BROMODODECANE (METHYL-D3, 98%), 1 G
Cambridge Isotope Laboratories L-LYSINE:2HCL (4,4,5,5-D4, 96-98%), 0.25 G
L-LYSINE:2HCL (4,4,5,5-D4, 96-98%), 0.25 G
Medchemexpress LLC Tetrabenazine-d6 | 1392826-25-3 | 98.2% | 5 MG
Tetrabenazine-d6 (Deutetrabenazine) is a deuterium-labeled Tetrabenazine, which is the first deuterium approved worldwide for the research of Huntington's disease, or other hyperkinetic movement disorders.
- Extend the half-life in vivo.
- Improve oral bioavailability.
- Improve metabolic characteristics.
- Improve drug safety.
- Preserve the therapeutic properties.
Medchemexpress LLC Guanidine-d5 hydrochloride | 108694-93-5 | 98% | 250 MG
Guanidine-d5 hydrochloride is the deuterium labeled Guanidine hydrochloride, a strong chaotrope and denaturant of proteins. Deuteration can affect the 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
Medchemexpress LLC 6-mercaptopurine-13C,15N2 hydrochloride | 207729-57-5 | 99.9% | 191.62 | C_4_^13^CH_5_ClN_2_^15^N_2_S | 1 MG
6-Mercaptopurine-13C,15N2 hydrochloride is a stable isotope-labeled form of 6-mercaptopurine supplied as the hydrochloride salt for use as a tracer and internal standard in quantitative analytical methods. It is intended for NMR, GC-MS, and LC-MS workflows where isotopic labeling improves measurement accuracy.
- Stable isotope-labeled 6-mercaptopurine hydrochloride, 13C and 15N labeled.
- Suitable as a tracer and internal standard for NMR, GC-MS, and LC-MS.
- High purity (≈99.9%), appropriate for quantitative analysis.
- Supplied in small mg quantities for analytical use; store under nitrogen, away from moisture.
Medchemexpress LLC Triptolide-d3 | 38748-32-2 | MFCD00210565 | 91.9% | 363.42 g·mol⁻¹ | C20H21D3O6 | 1 MG
Triptolide-d3 (d3) is the deuterium-labeled isotopologue of triptolide supplied as a stable isotope standard for analytical and research applications. It is intended for use as an internal standard or tracer in mass spectrometry and isotopic studies, and is provided in a 1 mg package.
- Deuterium-labeled (d3) isotopologue for internal standard use in mass spectrometry
- Purity 91.9% (>90%)
- Molecular formula C20H21D3O6
- Molecular weight 363.42 g·mol⁻¹
- Package size 1 mg
- Store at -20°C; protect from light; handle under inert atmosphere where indicated
Medchemexpress LLC Spermine-d20 | 71-44-3 | 98.5% | 222.46 g/mol | C10H6D20N4 | 25 MG
Spermine-d20 is a deuterium-labeled isotopologue of the polyamine spermine supplied as a research-grade stable isotope standard for analytical and biological studies. It is intended for use as an internal standard, tracer, or reference material in mass spectrometry and metabolomics. For research use only.
- Deuterium-labeled standard for isotope dilution and tracer studies.
- High purity suitable for analytical applications.
- Used as an internal standard in LC-MS/MS and GC-MS workflows.
- Supplied as a small quantity solid to minimize waste for method development.
- Intended for research use only; not for human or clinical applications.
Medchemexpress LLC L-homocysteine-d4 | 331665-12-4 | MFCD01317494 | 94.9% | 139.21 | C4H5D4NO2S | 1 MG
L-Homocysteine-d4 is the deuterium-labeled form of L-homocysteine provided as a neat solid for use as an internal standard and tracer in quantitative analytical methods. It is intended for research and analytical applications such as LC-MS, GC-MS, and NMR, enabling isotope-dilution quantitation and method calibration.
- Deuterium-labeled L-homocysteine for isotope-dilution quantitation.
- High purity suitable for analytical standards and reference materials.
- Supplied as a white to off-white solid stable under sealed storage at 4°C.
- Soluble in water and DMSO with ultrasonic assistance for sample preparation.
- Known chemical formula and molecular weight facilitate accurate mass confirmation during analysis.
Medchemexpress LLC Minocycline-d7 | 10118-90-8 | 464.52 | C23H20D7N3O7 | 500 UG
Minocycline-d7 is a deuterium-labeled (d7) isotopologue of minocycline supplied as a reference standard for analytical and biochemical applications. It is intended for use as an internal standard in mass spectrometry and for tracer studies where isotopic labeling provides clear mass separation from the native compound.
- Deuterium-labeled (d7) isotopologue.
- Suitable as an internal standard for mass spectrometry.
- Useful for tracer and quantitative analytical studies.
- Chemical formula C23H20D7N3O7 and molecular weight 464.52.
- Available in a 500 UG package for analytical use.
Medchemexpress LLC o-cresol-d7 | 202325-50-6 | MFCD03428136 | 98.0% | 115.18 | C7HD7O | 10 MG
o-Cresol-d7 is the deuterium-labeled analog of o-cresol used as an isotope-labeled reference standard for analytical and research applications. It is commonly used as an internal standard or tracer in mass spectrometry, GC-MS, and LC-MS, and for quantitative metabolite and biomarker studies.
- Deuterated internal standard (d7) for MS, GC-MS, and LC-MS.
- High isotopic enrichment, typically 98.0% atom D.
- Molecular formula C7HD7O and molecular weight 115.18.
- Provided in small, pre-weighed quantities suitable for calibration and method development.
- Suitable for metabolomics, toxicology, and quantitative analytical workflows.
Medchemexpress LLC Taurocholic acid-d5 sodium | 2044276-13-1 | 98.0% | 542.72 g/mol | C26H39D5NNaO7S | 1 MG
Deuterium-labeled taurocholic acid sodium (taurocholic acid-d5 sodium) is a stable isotope internal standard designed for analytical and metabolomics workflows. Supplied as a small, high-purity sodium salt powder for laboratory research use only; not for human or veterinary use.
- Deuterium-labeled (d5) internal standard for quantitative LC-MS/MS.
- Suitable for metabolomics and targeted bile acid analysis.
- High chemical purity (98.0%).
- Supplied as a 1 mg powder vial for analytical use.
- Sodium salt form for improved aqueous solubility and handling.
Medchemexpress LLC Deflazacort-d3
Deflazacort-d3 is a isotope of Deflazacort Deflazacort is an inactive proagent and is converted rapidly to the active metabolite 21-desacetyldeflazacort Deflazacort is used as an anti-inflammatory and immunosuppressant[1]