Isotopically Labeled Compounds
Cayman Chemical OctnoIc AcId-d2 5mg
An internal standard for the quantification of octanoic acid by GC- or LC-MS
Cayman Chemical ResolvIn D3 25ug
A DHA-derived product first identified in mouse inflammatory exudates; reduces neutrophil infiltration in vivo in both mouse peritonitis and dermal inflammation; enhances macrophage phagocytosis and efferocytosis
Sigma Aldrich Fine Chemicals Biosciences Ethanol d6 anhydrous 99.55G
Ethanol-d6 is a deuterated derivative of ethanol. It has an isotopic purity of 99.5atom%D. It is a standard purity solvent suitable for routine NMR analyses (conducted at ambient temperatures where quality is less critical).
Medchemexpress LLC Pseudooxynicotine-d4 hydrochloride | 764661-23-6 | MFCD12031608 | 99.0% | 255.18 | C10H12D4Cl2N2O | 5 MG
Pseudooxynicotine-d4 hydrochloride is the deuterium-labeled (d4) analogue of pseudooxynicotine supplied as the hydrochloride salt. It is intended for use as an isotopically labeled reference or internal standard in analytical and mass spectrometry applications. The product is supplied as a powdered material in small milligram pack sizes.
- Deuterium-labeled internal standard for MS quantitation.
- Hydrochloride salt for improved stability and handling.
- High purity: 99.0%.
- Molecular weight 255.18 g/mol; chemical formula C10H12D4Cl2N2O.
- Available in small pack sizes suitable for trace analysis.
- Store sealed at 4°C; in solvent store at -80°C (6 months) or -20°C (1 month).
Cayman Chemical Dexamethason-d4 500ug
An internal standard for the quantification of dexamethasone by GC- or LC-MS
Medchemexpress LLC Febuxostat-d9 | 1246819-50-0 | MFCD21363615 | 98.7% | C16H7D9N2O3S | 10MG
Febuxostat-d9 is a deuterium-labeled analogue of febuxostat supplied as an isotopically labeled reference standard for analytical and research applications. It is intended for use as an internal standard in LC- or GC-MS assays and in studies of xanthine oxidase inhibition. The material is supplied with high isotopic enrichment and high chemical purity (≈98.7%, C16H7D9N2O3S, MW 325.43) for research use only.
- Deuterium-labeled internal standard for LC- or GC-MS quantification.
- Facilitates accurate quantification and compensation for matrix effects.
- High isotopic enrichment and purity for reliable analytical performance.
- Suitable for pharmacokinetic, metabolic, and bioanalytical studies.
- Provides a clear mass shift from the unlabeled analyte for MS separation.
Medchemexpress LLC 7-hydroxywarfarin-d5 | 94820-65-2 | 98.1% | C19H11D5O5 | 10MG
7-Hydroxywarfarin-d5 is a deuterium-labeled analogue of 7-hydroxywarfarin used as an internal standard and tracer for analytical and pharmacokinetic studies. It provides a mass-shifted reference compound to support accurate LC-MS/MS quantification of warfarin metabolites.
- Deuterium-labeled internal standard for LC-MS/MS assays.
- Mass-shifted analogue minimizes interference with analyte signals.
- High purity (98.1%).
- Soluble in DMSO at 100 mg/mL; ultrasonic assistance recommended.
- Stable when stored sealed at -20°C; in solvent: -80°C up to 6 months.
- Supplied as a white to off-white solid suitable for reference use.
Medchemexpress LLC Lumacaftor-d4 | 2733561-44-7 | MFCD00143661 | 99.8% | 456.43 | C24H14D4F2N2O5 | 5 MG
Lumacaftor-d4 is the deuterium-labeled analogue of lumacaftor supplied for research applications. It is intended as a tracer and internal standard to support accurate, quantitative analyses by NMR, GC-MS, and LC-MS in laboratory settings.
- Deuterium-labeled internal standard for quantitative analysis by MS and NMR.
- High purity suitable for analytical and tracer applications.
- Available in small-mass packages for trace-level work.
- Stable isotope labeling improves accuracy and precision in quantitation.
- Intended for research use only; not for clinical or therapeutic use.
Medchemexpress LLC Erythromycin-13C,d3 | 2378755-50-9 | 99.50% | 1 MG
Erythromycin-13C,d3 is a 13C- and deuterium labeled macrolide antibiotic. It is produced by the actinomycete *Streptomyces erythreus* and exhibits a broad spectrum of antimicrobial activity. The compound works by binding to bacterial 50S ribosomal subunits, thereby inhibiting RNA-dependent protein synthesis by blocking transpeptidation and/or translocation reactions without affecting nucleic acid synthesis.
- Used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Purity of 99.50% by HPLC
- Isotope-labeled compound
- Deuterium (2H, D) labeled
- Carbon-13 (13C) labeled
- Stable isotope-labeled inhibitor
Medchemexpress LLC D-Glucose-13C-5 | 106032-62-6 | 98.0% | 5 MG
D-Glucose-13C-5 is the 13C labeled D-Glucose. It is a monosaccharide, an important carbohydrate in biology, a carbohydrate sweetener, and a critical component of general metabolism. It also serves as a critical signaling molecule in relation to both cellular metabolic status and biotic and abiotic stress response.
- 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 are incorporated into drug molecules as tracers.
- Deuteration can affect pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC D-Glucose-13C-3 | 105931-74-6 | 99.7% | 100 MG
D-Glucose-13C-3 is a 13C labeled D-Glucose. D-Glucose (Glucose) is a monosaccharide and an important carbohydrate in biology. It functions as a carbohydrate sweetener, a critical component of general metabolism, and a signaling molecule related to cellular metabolic status and stress response. Stable heavy isotopes of hydrogen, carbon, and other elements have been incorporated into drug molecules, primarily as tracers for quantitation during the drug development process. Deuteration has also gained attention for its potential to 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.