Isotopically Labeled Compounds
Medchemexpress LLC Propofol-d17 β-D-glucuronide | 1683581-05-6 | 98.0% | 371.50 g/mol | C18H9D17O7 | 100 UG
Propofol-d17 β-D-glucuronide is a deuterium-labeled analogue of propofol β-D-glucuronide intended for use as a tracer and internal standard in quantitative analytical methods (NMR, GC-MS, LC-MS). It is provided as a white to off-white solid with high purity and characterized molecular properties, and is soluble in common organic solvents for analytical sample preparation.
- Deuterium-labeled internal standard for quantitative analysis.
- High purity: 98.0%.
- Molecular weight 371.50 g/mol and formula C18H9D17O7.
- Soluble in ethanol, DMF, and DMSO (≥30 mg/mL).
- Available in microgram to milligram pack sizes for analytical use.
- Suitable for use as a tracer in metabolic and pharmacokinetic studies.
- Handle with care: use newly opened DMSO due to hygroscopicity.
Medchemexpress LLC Nortriptyline (desmethylamitriptyline) | 72-69-5 | 99.9% | 263.38 g·mol⁻¹ | C19H21N | 1 ML
Nortriptyline (desmethylamitriptyline) is a tricyclic antidepressant compound supplied as a high-purity research reagent in solution form. This product is provided in DMSO and intended for in vitro and analytical applications; consult the product page and SDS for handling, storage, and safety information.
- High purity suitable for analytical and research use.
- Supplied as a ready-to-use solution in DMSO for convenient dosing.
- Appropriate for use as a pharmacological standard or reference compound.
- Molecular formula and weight are provided for experimental planning.
- For research use only; not for human or clinical use.
Medchemexpress LLC Propofol-d17 β-D-glucuronide | 1683581-05-6 | 98.0% | 371.50 g/mol | C18H9D17O7 | 1 MG
Propofol-d17 β-D-glucuronide is a deuterium-labeled internal standard of propofol β-D-glucuronide suitable for use as a tracer or quantitative reference in NMR, GC-MS, and LC-MS analyses. It is supplied as a high-purity isotopologue for metabolite quantitation and method development.
- Deuterium-labeled propofol β-D-glucuronide for use as an internal standard
- High purity: 98.0%
- Available in small quantities including 1 mg
- Soluble in ethanol, DMF, and DMSO at ≥ 30 mg/mL
- Powder: store at -20°C; in solvent: -80°C (6 months) or -20°C (1 month)
- Suitable for NMR, GC-MS, and LC-MS quantitative analysis
Cayman Chemical L-ThreonIn-d2 10mg
An internal standard for the quantification of L-threonine by GC- or LC-MS
Cayman Chemical MIltefosIn-d4 5mg
An internal standard for the quantification of miltefosine by GC- or LC-MS
Cayman Chemical L-AlnIn-d3 100mg
An internal standard for the quantification of L-alanine by GC- or LC-MS
Medchemexpress LLC Adamantane-d16 | 30470-60-1 | 98.4% | 152.33 Da | C10D16 | 10 MG
Adamantane-d16 is the fully deuterated form of adamantane, supplied as a stable-isotope standard for analytical and research applications. It is provided as a high-purity powder intended for use in mass spectrometry, isotope tracing, and related analytical workflows.
- Fully deuterated cage hydrocarbon for isotope labeling.
- Suitable as an internal standard for mass spectrometry and quantitative analysis.
- Molecular formula C10D16 and molecular weight 152.33 Da.
- High purity (98.4%) appropriate for analytical use.
- Stable as a powder under recommended cold storage conditions.
Cayman Chemical HomocItrulIn-d3 500ug
An internal standard for the quantification of homocitrulline by GC- or LC-MS
Cambridge Isotope Laboratories Chloroform-D "100%" (D, 99.96%), 865-49-6, MFCD00000827, 50Ml
Chemical Formula: CDCl3, Molecular Weight: 120.38, Synonym: Deuterochloroform. Chloroform-d (deuterochloroform, CDCl3) is a deuterated NMR solvent useful in NMR-based research and analyses. It may be synthesized by reacting trichloroacetophenone and sodium deuteroxide. The influence of the number of pulses on its multiphoton decomposition (MPD) has been studied. Infrared spectral studies of C-D stretching and bending motions of CDCl3 in different solvents have been investigated. The effect of chloroform-d on the interaction of water with activated carbons has been analyzed. The dependence of molecular reorientation of deuterated chloroform on pressure and temperature has been studied by Raman spectroscopy.