Isotopically Labeled Compounds
Cambridge Isotope Laboratories VITAMIN D2 (ERGOCALCIFEROL) UNLABELED 100 UG/ML IN ETHANOL, 1 ML
VITAMIN D2 (ERGOCALCIFEROL) UNLABELED 100 UG/ML IN ETHANOL, 1 ML
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-glucose-13C | 101615-88-7 | 99.7% | 181.15 | C₅¹³CH₁₂O₆ | 10 MG
D-Glucose-13C is a stable isotope-labeled form of D-glucose used as a metabolic tracer for studies of glucose utilization and metabolic flux. It is suitable for mass spectrometry and NMR applications where 13C labeling enables tracing of carbon flow through biochemical pathways.
- High isotopic labeling (13C) for metabolic tracing.
- High purity: 99.7%.
- Molecular weight: 181.15 g/mol.
- Available in small research pack sizes, including 10 mg.
- Suitable for MS and NMR-based metabolic studies.
Medchemexpress LLC Donepezil-d5 | 1128086-25-8 | 99.3% | C24H24D5NO3 | 1 MG
Donepezil-d5 is a deuterium-labeled version of Donepezil, a potent and specific AChE inhibitor. It has IC50 values of 8.12 nM for bovine AChE and 11.6 nM for human AChE. Deuteration, the incorporation of stable heavy isotopes into drug molecules, is used as a tracer during drug development and can influence 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 O-toluic acid-13C | 70838-82-3 | MFCD00002477 | 99.0% | 137.14 | C7(13C)H8O2 | 10 MG
o-Toluic acid-13C is the 13C-labeled isotopologue of o-toluic acid (2-methylbenzoic acid) supplied as a stable isotope standard for analytical and research use. It is provided as a small, neat solid suitable for use as an internal standard, tracer, or reference material in mass spectrometry and other analytical techniques.
- 13C-labeled isotopologue of 2-methylbenzoic acid.
- High chemical purity: 99%.
- Suitable as a stable isotope standard for MS and tracer studies.
- Available in small, laboratory-scale quantities (e.g., 10 MG) for analytical use.
- White to off-white solid; convenient for storage and handling in small vials.
Medchemexpress LLC Benzethonium-d7 chloride | 121-54-0 | 98.6% | 455.12 g/mol | C27H35D7ClNO2 | 10 MG
Benzethonium-d7 chloride is the deuterium-labeled analogue of benzethonium chloride supplied as a solid for analytical and research use. It serves as a tracer or internal standard for quantitative analysis by NMR, GC-MS, and LC-MS, and is used in studies of neuronal nicotinic acetylcholine receptor activity. The compound has a molecular weight of 455.12 g/mol and high listed purity (98.64%).
- Deuterium-labeled internal standard for analytical methods
- Suitable for NMR, GC-MS, and LC-MS quantitation
- High purity (98.6%) for reliable results
- Solid form for easy handling and storage
- Molecular weight 455.12 g/mol
- Available in small, research-scale pack sizes
Medchemexpress LLC (Rac)-atropine-d3 | 1276197-36-4 | 99.1% | 292.39 g/mol | C17H20D3NO3 | 10 MG
(Rac)-Atropine-d3 is the deuterium-labeled form of racemic atropine intended for use as a tracer or internal standard in analytical methods such as NMR, GC-MS, and LC-MS. It is supplied as a white to off-white solid and is offered in milligram-scale research pack sizes.
- Deuterium-labeled racemic atropine for analytical use.
- Suitable as tracer or internal standard for NMR, GC-MS, and LC-MS.
- High reported purity (≈99.1%).
- White to off-white solid, convenient for handling and storage.
- Recommended storage: powder at -20°C for long-term stability.
- Available in milligram-scale quantities for method development and quantitation.
Medchemexpress LLC Propantheline-d3 bromide | 64717-35-7 | MFCD01311246 | 99.0% | 451.41 g/mol | C23H27D3BrNO3 | 10 MG
Deuterium-labeled propantheline bromide provided as a high-purity solid for use as a tracer and internal standard in quantitative mass spectrometry and NMR applications.
- Deuterium-labeled tracer for MS and NMR quantitative analysis.
- High purity: 99.0%.
- Molecular formula: C23H27D3BrNO3; molecular weight: 451.41 g/mol.
- Appearance: off-white to light yellow solid.
- Solubility: DMSO ≥ 100 mg/mL; H2O 50 mg/mL (may require ultrasonic).
- Storage: 4°C sealed; in solvent -80°C (6 months) or -20°C (1 month).
- Available in small analytical quantities, e.g., 10 mg pack.
Medchemexpress LLC 1,2-dimethyl-5-nitroimidazole-d3 | 64678-69-9 | MFCD09265282 | 99.9% | 144.15 | C5H4D3N3O2 | 10 MG
Dimetridazole-d3 is the deuterium-labeled analog of dimetridazole supplied as a solid analytical standard for research and quantitative analysis. It is used as an internal standard or isotopic tracer in mass spectrometry and other analytical workflows, providing well-defined isotopic composition and traceability.
- Isotope-labeled internal standard for mass spectrometry.
- High purity (≈99.9%) suitable for analytical use.
- Molecular weight 144.15 and formula C5H4D3N3O2.
- Provided as a 10 MG solid powder; other pack sizes available.
- Powder storage: -20 °C (3 years) or 4 °C (2 years); in solvent: -80 °C (6 months).
Medchemexpress LLC D-Fructose-d4 | 478518-49-9 | 10 MG
D-Fructose-d4 is the deuterium-labeled D-Fructose. D-Fructose is a naturally occurring monosaccharide found in many plants. It is for research use only and not for sale to patients.
- Stable isotope
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Deuteration may affect pharmacokinetic and metabolic profiles of drugs
- Purity of 99.9%
Medchemexpress LLC POPEth-d5 | 1612140-92-7 | 98.0% | 725.04 | 1 MG
POPEth-d5 is deuterium labeled POPEth. This compound can be used as a tracer and as an internal standard for quantitative analysis.
- 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 3-Hydroxychrysene-d11 | 2468771-62-0 | C18HD11O | 1 MG
3-Hydroxychrysene-d11 is the deuterium labeled 3-Hydroxychrysene. It can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS. The incorporation of stable heavy isotopes of hydrogen, carbon, and other elements into drug molecules serves as tracers for quantitation during drug development. Deuteration, in particular, has garnered attention for its potential to affect the pharmacokinetic and metabolic profiles of drugs.
- Deuterium labeled 3-hydroxychrysene
- Used as a tracer
- Functions as an internal standard for quantitative analysis
- Suitable for NMR, GC-MS, or LC-MS applications
- Utilizes stable heavy isotopes for drug development quantitation
- Potential to influence pharmacokinetic and metabolic profiles
Medchemexpress LLC Prucalopride-13C,d3 | 2140306-00-7 | 99.0% | C1713CH23D3CIN3O3 | 1 MG
Prucalopride-13C,d3 is the 13C- and deuterium labeled Prucalopride, used largely as a tracer for quantitation during drug development. Deuteration has potential to affect the pharmacokinetic and metabolic profiles of drugs. This product has not been fully validated for medical applications and is for research use only.
- Stable heavy isotopes incorporated into drug molecules
- Potential to affect pharmacokinetic and metabolic profiles of drugs
- Target: 5-HT receptor
- Pathway: GPCR/G protein; neuronal signaling
Medchemexpress LLC L-tyrosine-d2-2 | 57746-15-3 | 10 MG
Deuterium-labeled L-tyrosine used as a stable-isotope standard and tracer for biochemical, pharmacokinetic, and mass spectrometry applications.
- Deuterium-labeled amino acid for tracer and quantitation studies.
- Molecular formula C9H9D2NO3; molecular weight 183.20 g/mol.
- CAS number 57746-15-3.
- Suitable as an internal standard in LC-MS/MS workflows.
- Storage: powder at -20°C; in solvent at -80°C (up to 6 months) or -20°C (up to 1 month).
- Typical pack size: 10 MG.
Medchemexpress LLC L-tyrosine-d3 | 71939-39-4 | 99.0% | 184.21 g/mol | C9H8D3NO3 | 10 MG
L-Tyrosine-d3 is the deuterium-labeled form of L-tyrosine supplied as a solid stable isotope standard for analytical and research use. It is used as a tracer and internal standard in quantitative methods such as NMR, GC-MS, and LC-MS, and may be used in metabolic studies involving citrate synthase activity in the posterior cortex.
- Deuterium-labeled tracer and internal standard for NMR, GC-MS, and LC-MS.
- High purity (≈99.0%) suitable for analytical applications.
- Solid, white to off-white appearance for easy handling.
- Storage: powder stable at -20°C (3 years) and 4°C (2 years); in solvent store at -80°C (6 months) or -20°C (1 month).
- Molecular weight 184.21 g/mol; formula C9H8D3NO3.