Isotopically Labeled Compounds
Cambridge Isotope Laboratories SODIUM CYANIDE (13C, 99%) 96% CHEMICAL PURITY, 1 G, 57991-39-6
SODIUM CYANIDE (13C, 99%) 96% CHEMICAL PURITY, 1 G, 57991-39-6
Cambridge Isotope Laboratories ETHYL ACETOACETATE (1,3-13C2, 99%), 0.5 G, 77504-73-5
ETHYL ACETOACETATE (1,3-13C2, 99%), 0.5 G, 77504-73-5
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.
Medchemexpress LLC Bisphenol A-d6 | 86588-58-1 | MFCD00224249 | 99.0% | 234.32 g/mol | C15H10D6O2 | 10 MG
Bisphenol A-d6 is a deuterium-labeled analogue of bisphenol A supplied as a solid analytical standard for use as an internal standard in mass spectrometry and isotopic tracing studies. It is intended for analytical workflows requiring a stable isotope-labeled reference and small laboratory pack sizes.
- Deuterium-labeled internal standard for mass spectrometry.
- Molecular formula C15H10D6O2 and molecular weight 234.32 g/mol.
- High chemical purity (99.0%).
- Available in small pack sizes such as 10 MG for analytical use.
- Recommended storage: powder at -20°C for long-term stability; in solvent at -80°C for extended storage.
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 Cholic acid-d5 | 53007-09-3 | MFCD08702879 | 98.0% | 413.60 | C24H35D5O5 | 10 MG
Cholic acid-d5 is the deuterium-labeled analogue of cholic acid supplied for use as an internal standard or tracer in analytical workflows. It supports quantitative method development and routine analyses in NMR, GC-MS, and LC-MS, and is intended for research use only.
- Deuterium-labeled internal standard for quantitative NMR, GC-MS, and LC-MS.
- High purity (98.0%).
- Molecular formula C24H35D5O5; molecular weight 413.60.
- CAS number 53007-09-3.
- Provided as a 10 mg vial; store protected from light and under inert atmosphere.
- For research use only; not for human or animal therapeutic use.
Medchemexpress LLC L-lysine-13C dihydrochloride | 202190-50-9 | 99.9% | 220.10 | C5(13C)H16Cl2N2O2 | 10 MG
L-lysine-13C dihydrochloride is a stable-isotope labelled form of the essential amino acid L-lysine, provided as the dihydrochloride salt for tracer, metabolic, and mass-spectrometry studies. It is 13C-labelled at the carboxyl carbon and supplied as a white to off-white solid with high chemical purity.
- 13C-labelled at the carboxyl carbon for tracer and mass-spectrometry applications.
- Provided as the dihydrochloride salt for improved solubility and stability.
- High purity (99.9%) suitable for research use.
- White to off-white solid; molecular weight 220.10 g/mol.
- CAS number 202190-50-9 for unambiguous identification.
- Storage: store sealed at 4°C; in solvent, store at -80°C (6 months) or -20°C (1 month).
Cayman Chemical cis-10-hydroxy Nortriptyline
An active metabolite of amitriptyline and nortriptyline; formed from amitriptyline and nortriptyline by CYP2D6; inhibits norepinephrine reuptake in rat cortical slices (EC50 = 160 nM)
Cayman Chemical CapsaIcIn-d3 1mg
An internal standard for the quantification of capsaicin by GC- or LC-MS
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 Istradefylline-13C,d3 | 2749234-46-4 | 98.3% | 388.44 | 50 MG
Istradefylline-13C,d3 is the 13C- and deuterium labeled Istradefylline. It is a very potent, selective and orally active adenosine A2A receptor antagonist with Ki of 2.2 nM in experimental models of Parkinson's disease.
- 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 N-acetyl dapsone-d4 | 2070015-08-4 | MFCD28900735 | 98.0% | 294.36 | C14H10D4N2O3S | 10 MG
N-Acetyl dapsone-d4 is the deuterium-labeled form of N-acetyl dapsone, the primary metabolite of dapsone. It is supplied as an isotope-labeled analytical standard for research and quantitative analytical applications.
- Deuterium-labeled internal standard for LC-MS and GC-MS.
- Suitable for quantitative and metabolic studies.
- Molecular formula C14H10D4N2O3S; molecular weight 294.36.
- Packaged as a 10 mg vial for laboratory use.
- Intended for research use only; not for human or veterinary use.
Medchemexpress LLC L-ornithine-d7 hydrochloride | 2483831-57-6 | 99.6% | 175.67 g/mol | C5H6D7ClN2O2 | 100 MG
L-Ornithine-d7 hydrochloride is the deuterium-labeled form of L-ornithine hydrochloride used as an isotopically labeled standard or tracer in analytical and biochemical workflows. It provides a mass-shifted analogue for accurate quantitation and tracer studies in mass spectrometry.