Isotopically Labeled Compounds
Cambridge Isotope Laboratories CORTISONE (2,2,4,6,6,9,12,12-D8, 98%), 5 MG
CORTISONE (2,2,4,6,6,9,12,12-D8, 98%), 5 MG
Cambridge Isotope Laboratories 1,25-DIHYDROXYVITAMIN D3 UNLABELED (CHEM. PURITY 95%), 1 MG
1,25-DIHYDROXYVITAMIN D3 UNLABELED (CHEM. PURITY 95%), 1 MG
Medchemexpress LLC L-lysine-13C6,15N2 hydrochloride | 1200447-00-2 | MFCD00144647 | 99.9% | 10 MG
L-lysine-13C6,15N2 hydrochloride is a stable isotope-labeled amino acid supplied as the hydrochloride salt for use in isotopic labeling experiments and quantitative proteomics. Enriched with six 13C atoms and two 15N atoms, it is provided as a white solid for laboratory research applications.
- Provides 13C6 and 15N2 isotopic labeling for SILAC and metabolic tracing.
- High purity suitable for mass spectrometry-based quantitation.
- Supplied as the hydrochloride salt and dry solid for easy handling.
- Molecular weight approximately 190.59 g/mol.
- Store as recommended for labeled amino acids (typically at -20 °C).
Medchemexpress LLC Metoprolol-d7 (hydrochloride) | 1219798-61-4 | 99.7% | 310.87 g·mol⁻1 | C15H19D7ClNO3 | 10 MG
Metoprolol-d7 (hydrochloride) is the deuterium-labeled hydrochloride salt of metoprolol supplied as a high-purity stable isotope standard for quantitative bioanalysis. It is intended for use as an internal standard in mass spectrometry assays to improve accuracy and precision in pharmacokinetic and bioanalytical studies.
- High isotopic purity for accurate quantitation.
- High chemical purity (99.7%) to minimize interference.
- Hydrochloride salt form with molecular weight 310.87 g·mol⁻1.
- Supplied in small milligram quantities suitable for analytical standards.
- Water-soluble with ultrasonic warming recommended for dissolution.
Medchemexpress LLC Lomefloxacin-d5 (hydrochloride) | 98079-52-8 | 99.9% | 392.84 | C17H15D5ClF2N3O3 | 10 MG
Lomefloxacin-d5 (hydrochloride) is the deuterium-labeled analogue of the antibiotic lomefloxacin, supplied as a hydrochloride salt and intended for use as an analytical reference standard and tracer for quantitative methods. It is formulated and tested for high purity and supplied with supporting COA and SDS documentation.
- Deuterated internal standard for quantitative NMR, GC-MS, and LC-MS analysis.
- High reported purity by LC-MS (≈99.9%).
- Provided as a hydrochloride salt for improved stability.
- Supplied with certificate of analysis and SDS for traceability.
- Recommended storage at 4°C; in solvent, -80°C for long-term storage.
Medchemexpress LLC Butanoic-1-13C acid, 3-methyl- | 87994-84-1 | 99.0% | 103.12 | 5 MG
Isovaleric acid-13C is the 13C labeled Isovaleric acid. Isovaleric acid is a natural fatty acid and is known to affect neonatal death and possible Jamaican vomiting sickness in humans. This product is for research use only and is not sold to patients.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Dotriacontane-d66 | 62369-68-0 | 99.1% | 517.27 | 25 MG
Dotriacontane-d66 is a deuterium-labeled Dotriacontane, used for research purposes as a tracer and an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS. Deuteration has gained attention for its potential to affect the pharmacokinetic and metabolic profiles of drugs.
- Used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
![Medchemexpress LLC Benz[a]anthracene-d12 | 1718-53-2 | MFCD00020473 | 99.7% | 240.36 | 50 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000452243-logo.png-250.jpg){kind=logo}
Medchemexpress LLC Benz[a]anthracene-d12 | 1718-53-2 | MFCD00020473 | 99.7% | 240.36 | 50 MG
This product is a deuterium-labeled compound, which means it contains heavy isotopes of hydrogen. These types of compounds are useful as tracers and internal standards for quantitative analysis in various techniques like NMR, GC-MS, or LC-MS. Deuteration can influence the pharmacokinetic and metabolic profiles of pharmaceuticals. It appears as a white to off-white solid with a purity of 99.74%.
- 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 5-hydroxytryptamine-d4 | 58264-95-2 | 99.6% | 180.24 | C10H8D4N2O | 10 MG
Serotonin-d4 is a deuterated analogue of serotonin used as a stable isotope internal standard for quantitative mass spectrometry and tracer studies. It provides a predictable mass shift for accurate quantitation and method validation in biological and biochemical analyses.
- Purity: 99.6%.
- Molecular weight: 180.24 g/mol.
- Chemical formula: C10H8D4N2O.
- Physical form: solid, light brown to brown.
- Solubility: DMSO 100 mg/mL; ultrasonic assistance recommended.
- Storage: 4°C under nitrogen; in solvent -80°C up to 6 months, -20°C up to 1 month.
Cayman Chemical ClonIdIn-d4hydrochlorIde 2.5mg
An internal standard for the quantification of clonidine by GC- or LC-MS
Medchemexpress LLC Treprostinil-d9 | 2747918-14-3 | 99.8% | 399.57 g/mol | C23H25D9O5 | 10 MG
Treprostinil-d9 is the deuterium-labeled (D9) isotopologue of treprostinil supplied as an analytical standard and internal tracer for quantitative assays. It is intended for research use only and supports method development and accurate bioanalytical quantitation.
- Deuterium-labeled internal standard for quantitative assays.
- Suitable for NMR, GC-MS, and LC-MS analysis.
- High purity (99.8%) for analytical accuracy.
- Molecular weight 399.57 g/mol; formula C23H25D9O5.
- Available in small-mass packages, including 10 MG quantities.
- For research use only; not for human or therapeutic use.
Medchemexpress LLC Diphenyl Phosphate-d10 | 1477494-97-5 | 260.25 | 1 MG
Diphenyl Phosphate-d10 (DPhP-d10) is a deuterium-labeled Diphenyl Phosphate that can inhibit growth and energy metabolism of zebrafish in a sex-specific manner. This compound is suitable as a tracer and an internal standard for quantitative analysis methods like NMR, GC-MS, and LC-MS. Deuterium substitution can influence the pharmacokinetic and metabolic profiles of pharmaceutical compounds.
- Used as a tracer
- Functions as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Dexamethasone-d4 | 2305607-27-4 | 98.9% | 396.49 | 1 MG
Dexamethasone-d4 is a deuterium-labeled Dexamethasone, which acts as a glucocorticoid receptor agonist. It significantly decreases CD11b, CD18, and CD62L expression on neutrophils, and CD11b and CD18 expression on monocytes. Dexamethasone is highly effective in controlling COVID-19 infection and inhibits the production of exosomes containing inflammatory microRNA-155 in lipopolysaccharide-induced macrophage inflammatory responses. This compound is versatile for various analytical applications.
- 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 L-Glutamine-15N-1 | 59681-32-2 | 147.14 | 25 MG
L-Glutamine-15N-1 is the 15N-labeled L-Glutamine. L-Glutamine (L-Glutamic acid 5-amide) is a non-essential amino acid abundantly present throughout the body and involved in many metabolic processes. It provides a source of carbons for oxidation in some cells.
- Used as a tracer.
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes are incorporated into drug molecules, primarily as tracers for quantitation during drug development.
Cambridge Isotope Laboratories Vitamin B3 (Nicotinamide) | 347841-88-7 | MFCD01074140 | 0.5g
Vitamin B3 (Nicotinamide) | Putity: 98% | MW: 126.15 | 347841-88-7 | MFCD01074140 | 0.5g