Isotopically Labeled Compounds
Medchemexpress LLC D-Fructose-d | 374089-83-5 | 1 MG
D-Fructose-d is the deuterium labeled D-Fructose. D-Fructose (D(-)-Fructose) is a naturally occurring monosaccharide found in many plants.
- Metabolism-protein/nucleotide metabolism
Medchemexpress LLC L-glutamine-13C5,15N2,d5 | 2123439-02-9 | 99.9% | 158.13 | 13C5H5D515N2O3 | 10 MG
L-Glutamine-13C5,15N2,d5 is an isotopically labeled form of the amino acid L-glutamine containing five 13C atoms, two 15N atoms, and five deuterium atoms. Supplied as a 10 mg research pack, it is suitable for analytical and tracer applications such as mass spectrometry and NMR.
- Isotopically labeled with 13C, 15N, and deuterium for tracer studies.
- High isotopic and chemical purity for analytical workflows.
- Small 10 mg pack convenient for method development and limited-sample work.
- Solid form for accurate weighing and sample preparation.
- Compatible with mass spectrometry and NMR applications.
Medchemexpress LLC Pentacosane-d52 | 121578-13-0 | 5 MG
Pentacosane-d52 is the deuterium-labeled version of Pentacosane. Pentacosane is a significant component found in the acetone extract of Curcuma raktakanda and in the essential oil from the leaves of Malus domestica. It has shown anti-cancer activities.
- Application as a tracer
- Internal standard for quantitative analysis using techniques like NMR, GC-MS, or LC-MS
- Stable heavy isotopes of elements such as hydrogen and carbon are incorporated into drug molecules, primarily for quantitation during the drug development process
- Deuteration can potentially influence the pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC Butylparaben-d9 | 1216904-65-2 | 5 MG
Butylparaben-d9 (Butyl parahydroxybenzoate-d9; Butyl paraben-d9) is a deuterium-labeled form of Butylparaben (HY-B1431). Deuterium labeling involves incorporating stable heavy isotopes of hydrogen, carbon, and other elements into drug molecules, primarily for use as tracers in quantitative analysis during drug development. This process has garnered attention for its potential to influence the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer in drug development processes.
- Can be utilized as an internal standard for quantitative analysis.
- Compatible with analytical techniques such as NMR, GC-MS, and LC-MS.
- Deuterium labeling can impact pharmacokinetic profiles of drugs.
- Deuterium labeling can affect metabolic profiles of drugs.
- Stable heavy isotopes for reliable research applications.
- For research use only.
Medchemexpress LLC 4-n-octyl-anisole-d17 | 1219794-56-5 | 99.2% | 237.46 | C15H7D17O | 10 MG
4-n-Octyl-anisole-d17 is the deuterium-labeled analogue of 4-n-octyl-anisole intended for research use as a tracer and internal standard in quantitative analytical methods. It is used in pharmacokinetic and metabolic studies and is compatible with NMR, GC-MS, and LC-MS workflows.
- Deuterium labeling (d17) provides a clear mass shift for tracer and internal standard applications.
- Compatible with NMR, GC-MS, and LC-MS for quantitative analysis.
- Stable isotope labeling supports pharmacokinetic and metabolic profiling.
- Chemical formula C15H7D17O and molecular weight 237.46 aid molecular identification.
- High reported purity (99.2%) suitable for analytical standards.
- Available in small research package sizes (1 mg, 5 mg, 10 mg).
Medchemexpress LLC Hexatriacontane-d74 | 16416-34-5 | MFCD00274270 | 99.0% | 581.43 g/mol | C36D74 | 100 MG
Hexatriacontane-d74 is a deuterium-labeled C36 alkane supplied as a high-purity stable isotope standard for analytical and tracer applications. It is intended for use as an internal standard or tracer in quantitative NMR, GC-MS, and LC-MS analyses, and for studies where isotope labeling aids pharmacokinetic or metabolic investigation. Documentation such as COA, SDS, and data sheets is available from the supplier.
Medchemexpress LLC Citric acid-2,4-13C2 | 121633-50-9 | MFCD00143997 | 98.0% | 194.11 g/mol | C6H8O7 | 1 MG
Citric acid-2,4-13C2 is a stable isotope-labeled form of citric acid with 13C at positions 2 and 4. Supplied as a white to off-white solid, it is designed for use as a tracer or internal standard in quantitative analyses such as NMR, GC-MS, and LC-MS.
- Stable isotope labeling at positions 2 and 4 for precise metabolic tracing.
- High purity (98.0%) suitable for analytical and quantitative work.
- White to off-white solid for straightforward handling and storage.
- High aqueous solubility (≈100 mg/mL) with ultrasonic assistance if needed.
- Storage recommendations provided to preserve stability in powder and solution.
- Available in small milligram pack sizes suitable for laboratory analyses.
Medchemexpress LLC Stearic acid-d5 | 211443-83-3 | 50 MG
Stearic acid-d5 is the deuterium labeled Stearic acid. Stearic acid is a long chain dietary saturated fatty acid which exists in many animal and vegetable fats and oils.
- Stable heavy isotopes have been incorporated into drug molecules as tracers for quantitation.
- Deuteration has the potential to affect pharmacokinetic and metabolic profiles of drugs.
Medchemexpress LLC Ethephon-d4 | 1020719-29-2 | >98.0% | 148.52 g/mol | C2H2D4ClO3P | 1 MG
Ethephon-d4 is the deuterium-labeled analogue of ethephon supplied as an analytical reference standard for research use. It is intended for use as an internal standard in mass spectrometry and quantitative assays to improve accuracy, sensitivity, and traceability when measuring ethephon in complex matrices. Supplied in small quantities suitable for analytical calibration and method development.
- Deuterium-labeled internal standard for mass spectrometry.
- 99 atom % D isotopic enrichment for clear mass separation.
- Chemical purity >98% suitable for analytical reference use.
- Compact quantities for trace-level calibration and method development.
- Stable under recommended storage for consistent performance.
Medchemexpress LLC Sulfamethoxazole-d4 | 1020719-86-1 | 99.3% | 1 MG
Sulfamethoxazole-d4 is a deuterium-labeled sulfonamide antibiotic with broad antibacterial activity. It functions by inhibiting bacterial folate metabolism through competition with 4-Aminobenzoic acid (PABA) for dihydropteroate synthetase and dihydropteroate reductase. This compound is suitable for studies of urinary tract infections (UTIs), prostatitis, and bronchitis.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis
- Deuteration may affect pharmacokinetic and metabolic profiles of drugs
- Available in solid form
Medchemexpress LLC MMAF-d8 hydrochloride | 1415246-68-2 | 99.7% | 776.47 | C39H58D8ClN5O8 | 10 MG
MMAF-d8 hydrochloride is the deuterated hydrochloride salt of monomethylauristatin F intended for research use as an ADC payload and microtubule-disrupting agent. The compound is supplied as a white to off-white solid, has molecular formula C39H58D8ClN5O8 and molecular weight 776.47, and is unstable in solution - prepare fresh solutions. Store sealed at 4°C and protect from moisture.
- High purity (99.7% by LCMS).
- High isotopic enrichment (99.8%).
- Soluble in DMSO at 100 mg/mL (may require ultrasonic).
- White to off-white solid appearance.
- Suitable as an antibody-drug conjugate (ADC) payload and microtubule-disrupting research reagent.
- Store sealed at 4°C and protect from moisture.
- Unstable in solution; prepare fresh solutions prior to use.
Medchemexpress LLC N-Ethylmaleimide-d5 | 360768-37-2 | 99.9% | 5 MG
N-Ethylmaleimide-d5 is the deuterium labeled N-Ethylmaleimide. N-Ethylmaleimide (NEM) is a reagent that alkylates free sulfhydryl groups, a cysteine protease inhibitor, and specifically inhibits phosphate transport in mitochondria. It is also a deubiquitinating enzyme inhibitor.
- Deuterium labeled N-Ethylmaleimide.
- 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 DL-Alanine-d3 | 53795-94-1 | 5 MG
DL-Alanine-d3 is a deuterium labeled DL-Alanine, an amino acid that functions as the racemic compound of L- and D-alanine. It is intended for research use only. This compound serves as a tracer and an internal standard for quantitative analysis methods like NMR, GC-MS, or LC-MS. Deuteration, in this context, is noted for its potential to influence the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Employed as a reducing and capping agent with silver nitrate aqueous solutions for nanoparticle production
- Can be utilized for researching transition metals chelation, including Cu(II), Zn(II), and Cd(II)
- Functions as a sweetener, classified alongside glycine and sodium saccharin
- Plays a crucial role in the glucose-alanine cycle between tissues and the liver
Medchemexpress LLC Hexatriacontane-d74 | 16416-34-5 | MFCD00274270 | 99.0% | 581.43 g/mol | CD3(CD2)34CD3 | 50 MG
Hexatriacontane-d74 is the deuterium-labeled isotopologue of hexatriacontane (C36) supplied as a high-purity solid for use as an isotopic standard or tracer in analytical chemistry. It is designed for quantitative and qualitative mass-spectrometry applications where a clear mass shift and stable reference compound are required.
- High isotopic purity (99.0%).
- Deuterium-labeled C36 alkane for clear mass-shift separation.
- Solid form for stable storage and handling.
- Suitable as an internal standard in GC-MS and LC-MS workflows.
- Provided with certificate of analysis and safety data sheet for documentation.
- Useful for tracer studies and analytical method development.