Isotopically Labeled Compounds
Medchemexpress LLC Antipyrine-d3 | 65566-62-3 | MFCD01074188 | 99.9% | 191.24 g/mol | C11H9D3N2O | 10 MG
Antipyrine-d3 is the deuterium-labeled internal standard of antipyrine supplied as a powder for analytical and pharmacokinetic studies. It is designed for isotope-dilution mass spectrometry and ADME/metabolic probe assays, providing a reliable tracer for quantitative LC-MS workflows.
- Deuterium-labeled internal standard for antipyrine.
- Supplied as a powder suitable for analytical use.
- High purity (~99.9%) appropriate for LC-MS quantification.
- Stable when stored as a powder: -20°C (up to 3 years) or 4°C (up to 2 years).
- Molecular formula C11H9D3N2O; molecular weight 191.24 g/mol.
- Common applications: isotope-dilution assays, pharmacokinetic studies, and metabolic profiling.
![Revvity Health Sciences Inc Inositol-1,4,5-Triphosphate, D-[Inositol-1-<sup>3</sup>H(N)]](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502811677.jpg-250.jpg)
Revvity Health Sciences Inc Inositol-1,4,5-Triphosphate, D-[Inositol-1-3H(N)]
Inositol-1,4,5-Triphosphate, D-[Inositol-1-3H(N)]
Medchemexpress LLC D-Fructose-d7 | 50 MG
D-Fructose-d7 is the deuterium-labeled form of D-Fructose, a naturally occurring monosaccharide found in many plants. Intended for research use only, this compound is not for sale to patients. It can be utilized as a tracer and as an internal standard for quantitative analysis. Deuteration, the incorporation of stable heavy isotopes, is used for quantitation during drug development and can influence pharmacokinetic and metabolic profiles.
- Deuterium-labeled form of D-Fructose
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Incorporates stable heavy isotopes for quantitation during drug development
- Has potential to affect pharmacokinetic and metabolic profiles of drugs
Medchemexpress LLC DL-Norepinephrine-d6 (hydrochloride) | 1219803-04-9 | MFCD08705108 | 5 MG
DL-Norepinephrine-d6 hydrochloride is a deuterium labeled external racemic catecholamine neurotransmitter, identified as a marker for catecholamine-secreting tumors. It functions as an internal standard for quantitative analysis and can be used as a tracer in research, including for Parkinson's disease.
- Deuterium labeled compound
- Functions as an external racemic catecholamine neurotransmitter
- Suitable for use as a tracer in research
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Useful for monitoring norepinephrine levels in urine or plasma
- Modulates human dendritic cell activation by altering cytokine release
- Acts as an antagonist of dibutyryl cyclic AMP in narcosis regulation
Cambridge Isotope Laboratories GLYCAN-O3-13C-GAL4 (GALACTOSE-13C6, 99%), 500 PMOL
GLYCAN-O3-13C-GAL4 (GALACTOSE-13C6, 99%), 500 PMOL
Medchemexpress LLC (Rac)-Cotinine-d3 | 110952-70-0 | 99.9% | 179.23 | C10H9D3N2O | 10 MG
(Rac)-Cotinine-d3 is the deuterium-labeled racemic form of cotinine used as a stable isotope internal standard and tracer in analytical chemistry and bioanalysis. It is intended for use in quantitative mass spectrometry assays and metabolic studies where isotopically labeled standards improve accuracy and precision.
- Deuterium-labeled internal standard for LC-MS/MS quantitation.
- Racemic form compatible with assays targeting cotinine and metabolites.
- High purity (99.9%) to minimize background interference.
- Available in small milligram quantities for analytical workflows.
- Molecular weight 179.23 and molecular formula C10H9D3N2O.
Medchemexpress LLC D-(+)-xylose-2-13C | 131771-69-2 | 99.9% | 151.12 | C5H10O5 (13C at C-2) | 10 MG
Xylose-2-13C is a 13C-labelled form of D-xylose provided as a solid tracer and analytical standard for metabolic and analytical studies. It is suitable as an internal standard or tracer for NMR, GC-MS, and LC-MS quantitative analyses and can be used in biochemical or microbial fermentation research as a carbon source.
- Contains 10 mg of material.
- Purity 99.89%.
- Isotope labeling: 13C at the 2-position.
- CAS number 131771-69-2.
- Molecular weight 151.12 g/mol.
- Solubility: in DMSO ~50 mg/mL; requires ultrasonic and warming; hygroscopic DMSO affects solubility.
- Storage: store protected from light; in solvent: -80°C for 6 months, -20°C for 1 month.
- Appearance: white to off-white solid.
- Intended uses include tracer studies and use as an internal standard in analytical workflows.
Medchemexpress LLC D-Glucose-13C-1 | 84270-10-0 | 99.9% | 1 MG
D-Glucose-13C-1 is the 13C labeled D-Glucose, a monosaccharide and important carbohydrate in biology. It serves as a critical signaling molecule in relation to both cellular metabolic status and biotic and abiotic stress response.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Sucrose-d14 (D-(+)-saccharose-d14) | 57-50-1 | 99.9% | 356.38 | C12H8D14O11 | 10 MG
Sucrose-d14 is the deuterium-labeled form of sucrose (D-(+)-saccharose), supplied as a high-purity solid for use in isotope-tracing, metabolic studies, and analytical workflows. It is intended for research use and provided in small quantities for precise experimental dosing.
- High deuterium labeling for isotope-tracing experiments.
- Chemical purity 99.9% reported by the manufacturer.
- Supplied as a solid powder suitable for dissolution in common analytical solvents.
- Available in small quantities for analytical and preparative studies.
- Store powder at -20°C for long-term stability.
Medchemexpress LLC Calcitriol-d6 | 78782-99-7 | MFCD15071365 | 99.3% | 422.67 | C27H38D6O3 | 10 MG
Calcitriol-d6 is the deuterium-labeled form of calcitriol (1,25-dihydroxyvitamin D3) used as an isotopically labeled internal standard in research and quantitative analysis.
- Deuterium-labeled (d6) analog of calcitriol.
- Intended for use as an internal standard for LC-MS or GC-MS quantification.
- High chemical purity suitable for analytical applications.
- Molecular formula C27H38D6O3; molecular weight 422.67.
Cambridge Isotope Laboratories BETA-ALANINE (13C3, 98%+; 15N, 96-99%), 0.25 G, 285978-07-6
BETA-ALANINE (13C3, 98%+; 15N, 96-99%), 0.25 G, 285978-07-6
Medchemexpress LLC Entacapone-d10 | 1185241-19-3 | 98.6% | C14H5D10N3O5 | 500 UG
Entacapone-d10 is a deuterium-labeled Entacapone. Entacapone is a potent, reversible, peripherally acting, and orally active catechol-O-methyltransferase (COMT) inhibitor. It inhibits COMT from rat brain, erythrocytes, and liver with IC50 values of 10 nM, 20 nM, and 160 nM, respectively. It is selective for COMT over other catecholamine metabolizing enzymes like MAO-A, MAO-B, phenolsulphotransferase M (PST-M), and PST-P (IC50s>50 μM). Entacapone also inhibits FTO demethylation with an IC50 of 3.5 μM.
- Can be used as a tracer.
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuterium-labeled compound for drug development quantitation.
- Potentially affects pharmacokinetic and metabolic profiles of drugs.
- Useful for Parkinson's disease research.
- Applicable for metabolic disorder research.
Medchemexpress LLC Glipizide-d11 | 1189426-07-0 | 96.4% | 5 MG
Glipizide-d11 is the deuterium labeled Glipizide. Glipizide (CP 2872; K 4024) is a potent, orally active, sulfonylurea class anti-diabetic agent used for type 2 diabetes mellitus research, but not for type 1. Glipizide acts by partially blocking ATP-sensitive potassium (KATP) channels among β cells of pancreatic islets of Langerhans.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuteration can impact the pharmacokinetic and metabolic profiles of drugs.
Cambridge Isotope Laboratories GLYCOCHENODEOXYCHOLIC ACID (2,2,4,4-D4, 98%) 97% CHEMICAL PURITY, 10 MG, 1201918-16-2
GLYCOCHENODEOXYCHOLIC ACID (2,2,4,4-D4, 98%) 97% CHEMICAL PURITY, 10 MG, 1201918-16-2
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.