Other Solvents
Medchemexpress LLC Nortriptyline-d3 hydrochloride | 203784-52-5 | MFCD00198172 | 99.7% | 302.86 g/mol | C19H19D3ClN | 10 MG
Nortriptyline-d3 hydrochloride is a deuterium-labeled internal standard of nortriptyline (desmethylamitriptyline) intended for analytical and research use. It is provided as a white to off-white solid with high isotopic enrichment and suitability for quantitative LC-MS/MS assays, method development, and pharmacokinetic studies.
- Stable-isotope labeled internal standard for mass spectrometry.
- High purity suitable for quantitative analysis.
- Provided as a solid convenient for storage and handling.
- Available in multiple small package sizes for analytical workflows.
- Suitable for method development, validation, and pharmacokinetic studies.
Medchemexpress LLC Naringenin-d4 | 1192260-78-8 | MFCD34676368 | 99.9% | 276.28 | C15H8D4O5 | 10 MG
Naringenin-d4 is the deuterated (stable isotope-labelled) analogue of the flavanone naringenin, supplied as a solid reference standard for analytical, tracer, and metabolic studies. It is commonly used as an internal standard in mass spectrometry and for pharmacokinetic or mechanistic investigations.
- Deuterium-labelled analogue suitable as an internal standard for LC-MS/MS.
- High chemical purity for reliable quantitative analysis.
- Supplied as a dry powder for convenient handling and storage.
- Available in small package sizes, including 10 mg, for analytical workflows.
- Structural identifiers provided for cheminformatics and method development.
- Stable when stored under recommended conditions for long-term use.
Medchemexpress LLC Pentoxifylline-d5 | 1185995-18-9 | 99.9% | 283.34 | C13H13D5N4O3 | 10 MG
Pentoxifylline-d5 is the deuterated analogue of pentoxifylline supplied for analytical and research use as an internal standard and tracer. It is intended for quantitative bioanalytical and pharmacokinetic studies and is compatible with NMR, GC-MS, and LC-MS methods.
- Deuterated internal standard for quantitative analysis.
- Suitable for NMR, GC-MS, and LC-MS assays.
- High isotopic and chemical purity for accurate quantitation.
- Provided in milligram-scale quantities for analytical workflows.
- Useful in pharmacokinetic and tracer studies.
Medchemexpress LLC D-(+)-glucose-d12-1 | 89798-27-6 | 99.4% | 192.23 g/mol | C6D12O6 | 10 MG
D-Glucose-d12-1 is a deuterium-labeled form of D-glucose (C6D12O6) intended for use as an isotopic tracer and as a quantitative internal standard in analytical methods. It is supplied as a high-purity crystalline powder for laboratory research and analytical workflows.
- Uniformly deuterated glucose (C6D12O6).
- High purity: 99.4%.
- Used as tracer and internal standard for NMR, GC-MS, and LC-MS.
- Supplied as a stable crystalline powder suitable for analytical preparation.
- Recommended storage: powder at -20°C for long-term stability.
Cambridge Isotope Laboratories D-MANNITOL (1-13C, 98%), 0.25 G, 132202-29-0
D-MANNITOL (1-13C, 98%), 0.25 G, 132202-29-0
Cambridge Isotope Laboratories L-ALANINE (2-13C, 99%), 0.25 G, 62656-85-3
L-ALANINE (2-13C, 99%), 0.25 G, 62656-85-3
Sigma Aldrich Fine Chemicals Biosciences tert Butyl methyl ether AC
tert-Butyl methyl ether (methyl tert-butyl ether MTBE) is a gasoline additive. Its oxidative degradation by propane-oxidizing bacterial strains has been tested. Kinetics of its heat-mediated biodegradation has been investigated under various reaction conditions. Its biodegradation followed a pseudo-first-order decay model and its pseudo-first-order rate constants were evaluated. Its extraction from water has been proposed by employing an organic polymeric compound Nafion. MTBE can be synthesized by acid-catalyzed reaction between methanol and isobutene. A study suggests that the addition of MTBE increases the number of active sites during polymerization of propene by stopped-flow method. This solvent meets ACS (American Chemical Society) specifications and can be used for processes requiring strict quality conditions such as analytical testing.
Cambridge Isotope Laboratories URACIL (1,3-15N2, 98%), 0.25 G, 5522-55-4
URACIL (1,3-15N2, 98%), 0.25 G, 5522-55-4
Cambridge Isotope Laboratories STEARIC ACID (METHYL-D3, 98%), 0.25 G, 62163-39-7
STEARIC ACID (METHYL-D3, 98%), 0.25 G, 62163-39-7
Cambridge Isotope Laboratories METHANOL (13C, 99%), 5 G, 14742-26-8
METHANOL (13C, 99%), 5 G, 14742-26-8
Cayman Chemical UrsocholIc AcId-d4 10mg
An internal standard for the quantification of ursocholic acid by GC- or LC-MS