Isotopically Labeled Compounds
Medchemexpress LLC 5Z,8Z,11Z,14Z-Eicosatetraenoic-16,16,17,17,18,18,19,19,20,20,20-d11 acid | 2692624-11-4 | 98.0% | 315.53 | 100 MG
Arachidonic acid-d11 is the deuterium labeled Arachidonic acid, an essential fatty acid and a major constituent of biomembranes. Deuteration has gained attention because of its potential to affect the pharmacokinetic and metabolic profiles of drugs. This product has been tested and complies with the given specifications. Solution, -20°C, 2 years.
- Target: Endogenous Metabolite; Isotope-Labeled Compounds
- Pathway: Metabolic Enzyme/Protease; Others
- Appearance: Colorless to light yellow (Liquid)
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 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 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 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 Spermine-d20 | 71-44-3 | 98.5% | 222.46 g/mol | C10H6D20N4 | 1 MG
Spermine-d20 is a deuterium-labeled isotopologue of spermine used as a stable isotope tracer or internal standard for quantitative NMR, GC-MS, and LC-MS analyses. It provides a mass-shifted analog for accurate quantitation in analytical and tracer studies.
- Purity 98.47%.
- Molecular formula C10H6D20N4; molecular weight 222.46 g/mol.
- Used as a tracer or internal standard for NMR, GC-MS, and LC-MS quantitation.
- Appearance white to off-white solid.
- Storage: powder -20°C (3 years); in solution -80°C (6 months), -20°C (1 month).
- Typical analytical pack size available: 1 mg.
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 DPPC-d62 | 25582-63-2 | 99.0% | 796.42 | 50 MG
DPPC-d62 is deuterium labeled DPPC. DPPC is a zwitterionic phosphoglyceride that can be used for the preparation of liposomal monolayers. DPPC-liposome can effectively serve as a delivery vehicle for inducing immune responses against GSL antigen in mice.
- 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 are incorporated into drug molecules, primarily as tracers for quantitation during drug development.
- Deuteration has the potential to affect the pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC α-linolenic acid-13C18 | 287111-28-8 | 99.5% | 296.30 | 13C18H30O2 | 10 MG
α-Linolenic acid-13C18 is a 13C18-labeled form of the essential fatty acid alpha-linolenic acid, supplied as a stable-isotope reference standard for analytical, tracer, and metabolomics studies. It is provided at high isotopic enrichment and chemical purity for use in mass spectrometry and quantitative assays.
- Stable-isotope labeled (13C18) reference standard for tracing and quantitation.
- High chemical purity (99.5%) for reliable analytical results.
- Supplied as a colorless to light yellow liquid; density approx. 0.925 g/cm3.
- Recommended storage under nitrogen; in solvent: -80°C for 6 months, -20°C for 1 month.
- Small pack sizes (for example, 10 mg) suitable for analytical workflows.
Medchemexpress LLC Adipic acid-d4 | 121311-78-2 | 98.0% | 150.170 g/mol | C6H6D4O4 | 10 MG
Adipic acid-d4 is a deuterium-labeled stable isotope of adipic acid (CAS 121311-78-2) supplied as a white to off-white solid at 98.0% purity. It is intended for use as an internal standard, tracer, or analytical reference in mass spectrometry and isotopic studies, and is provided in small research pack sizes suitable for quantitative analysis. Store powder at -20°C (3 years) or 4°C (2 years); in solvent store at -80°C (6 months).
- Deuterium-labeled internal standard for mass spectrometry and isotope tracing.
- High purity (98.0%) for reliable analytical performance.
- White to off-white solid suitable for preparation of standard solutions.
- Available in small pack sizes for analytical and research use.
- Suitable for quantitative analysis, method development, and tracer studies.
- Recommended storage conditions provided to preserve stability.
Medchemexpress LLC Volinanserin-d4 hydrochloride | 1217617-73-6 | 98.6% | 413.95 | 1 MG
Volinanserin-d4 (hydrochloride) is the deuterium labeled Volinanserin hydrochloride. Volinanserin is a potent and selective antagonist of the 5-HT2 receptor, with a Ki of 0.36 nM. It exhibits 300-fold selectivity for the 5-HT2 receptor over 5-HT1c, alpha-1, and DA D2 receptors. Volinanserin also demonstrates antipsychotic activity.
- Can be utilized as a tracer.
- Can serve as an internal standard for quantitative analysis using techniques such as NMR, GC-MS, or LC-MS.
- Stable heavy isotopes of hydrogen, carbon, and other elements, like deuterium, are incorporated into drug molecules for quantitation during drug development.
Medchemexpress LLC D-Fructose-13C-1 | 117013-19-1 | 100 MG
D-Fructose-13C-1 is the 13C labeled D-Fructose. D-Fructose (D(-)-Fructose) is a naturally occurring monosaccharide found in many plants. It 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
- Purity of 98.0%
- Appears as a solid, white to off-white
- Stable isotope
Medchemexpress LLC Flibanserin-d4-1 | 2122830-91-3 | 99.3% | 394.43 g/mol | C20H17D4F3N4O | 10 MG
Flibanserin-d4-1 is a deuterium-labeled analog of flibanserin supplied as a solid research standard for analytical and pharmacokinetic applications. It functions as a 5-HT1A full agonist and a 5-HT2A antagonist and is used as an internal standard or tracer to support quantitative LC-MS and GC-MS methods and metabolic studies.
- Deuterium-labeled internal standard for analytical assays.
- High purity (~99.3%).
- Solid, white to off-white powder form.
- Molecular weight 394.43 g/mol.
- Available as a 10 mg pack.
- Suitable for LC-MS, GC-MS, and pharmacokinetic studies.
Medchemexpress LLC Puromycin-d3 | 98.2% | 10 MG
Puromycin-d3 is a deuterium-labeled analogue of puromycin used as a labeled standard and tracer in biochemical research and mass spectrometry applications. The deuterated isotopologue enables accurate quantitation and tracking in proteomics and metabolism studies.
- Deuterium-labeled puromycin (d3) for use as an internal standard in mass spectrometry and tracer studies.
- Aminoglycoside antibiotic that inhibits protein synthesis, useful for translation and inhibitor assays.
- Molecular formula C22H26D3N7O5; molecular weight 474.53 g/mol.
- Purity 98.2% as supplied by the manufacturer.
- Supplied as a powder, typically in 10 mg vials; store at -20°C for long-term stability.