Isotopically Labeled Compounds
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.
Cayman Chemical ChenodeoxycholIc AcId-d4 10mg
An internal standard for the quantification of chenodeoxycholic acid by GC- or LC-MS
Revvity Health Sciences Inc Iodine-125 Radionuclide, 10mCi, Specific Activity: ~17Ci/mg, 10-5M NaOH (pH 8-11)
Iodine-125 Radionuclide, 10mCi, Specific Activity: ~17Ci/mg, 10-5M NaOH (pH 8-11)
Medchemexpress LLC Nilotinib-d6 | 1268356-17-7 | MFCD15071309 | 100.0% | 535.55 | C28H16D6F3N7O | 10 MG
Nilotinib-d6 is a deuterium-labeled analytical standard of nilotinib used for quantitative bioanalytical and mass-spectrometry applications. It is intended as an internal standard for pharmacokinetic, metabolic, and stability studies involving nilotinib, providing consistent isotopic labeling for accurate measurement.
- Deuterium-labeled internal standard suitable for LC-MS/MS quantitation.
- High purity for reliable analytical performance.
- Molecular formula C28H16D6F3N7O and molecular weight 535.55.
- Supplied in small mass packs appropriate for laboratory use.
- Useful for pharmacokinetic, metabolic, and stability studies.
Medchemexpress LLC 5α-cholestane-d6 | 358731-18-7 | MFCD01861631 | 99.0%
5α-cholestane-d6 | 358731-18-7 | MFCD01861631 | 99.0%
Medchemexpress LLC Sorafenib-13C,d3 | 1210608-86-8 | 98.4% | 468.84 | C2013CH13D3ClF3N4O3 | 10 MG
Sorafenib-13C,d3 is a stable isotope-labeled reference standard of sorafenib designed for research and analytical applications. It contains 13C and deuterium labels to provide a defined mass shift for use in LC-MS quantification, tracer studies, and pharmacokinetic experiments. The material is supplied at high purity suitable for use as an internal standard in analytical workflows.
- High isotopic labeling for reliable mass-spectrometry traceability.
- High purity suitable for quantitative analysis.
- Provided in small mg-scale packaging for analytical workflows.
- Intended for use as an internal standard, tracer, or reference material.
- Consistent mass shift enables accurate quantitation in LC-MS methods.
Cayman Chemical DIquat-d4bromIde 5mg
An internal standard for the quantification of diquat by GC- or LC-MS
Medchemexpress LLC P-fluorophenol-d6 | 1219804-93-9 | 98.5% | 117.13 g/mol | C6D5FO | 50mg
p-Fluorophenol-d6 is the deuterium labeled p-Fluorophenol[1]
American Radiolabeled Chemicals Inc HEX ACID 3H 250UC
Hexanoic acid, n-5,6-3H sodium salt 250uCi in ethanol, 1 mCi/ml, S.A. 50-60 Ci/mmol, M.W. 138.0, Exclusive
Medchemexpress LLC Diethyl phosphate-d10-1 | 2483831-48-5 | 99.7% | 164.16 | C4HD10O4P | 5 MG
Diethyl phosphate-d10-1 is the deuterium-labeled isotopologue of diethyl phosphate, intended as an analytical reference standard for research and quantitative mass spectrometry. It is supplied as a high-purity liquid suitable for trace-level analyses and isotopic labelling studies.
- Deuterium-labeled internal standard for mass spectrometry.
- High purity: 99.70%.
- Molecular weight 164.16 g/mol.
- Formula C4HD10O4P, suitable for isotopic tracing applications.
- Colorless to light yellow liquid with defined stability and storage conditions.
Medchemexpress LLC Tridecanoic acid-d25 | 202529-03-1 | 100mg
Tridecanoic acid-d25 is the deuterium labeled Tridecanoic acid Tridecanoic acid (N-Tridecanoic acid) a 13-carbon medium-chain saturated fatty acid can serve as an antipersister and antibiofilm agent that may be applied to research bacterial infections Tridecanoic acid inhibits Escherichia coli persistence and biofilm formation[1]
Medchemexpress LLC GW2580-d6 | 2733770-48-2 | 98.4% | 372.45 g/mol | C20H16D6N4O3 | 5 MG
GW2580-d6 is the deuterium-labeled analogue of GW2580, a selective inhibitor of the colony-stimulating factor 1 receptor (CSF1R). Supplied as a white to off-white solid, this isotopically labeled standard is intended for use as an analytical reference, tracer, or internal standard in quantitative and pharmacokinetic studies.
- Deuterium-labeled compound for use as an isotopic standard and tracer.
- Selective CSF1R (c-Fms) inhibitor scaffold useful in kinase research.
- Purity ~98.4% suitable for analytical applications.
- Molecular weight 372.45 g/mol; formula includes six deuterium atoms.
- Soluble in DMSO (~100 mg/mL); sonication and warming aid dissolution.
- Powder stable at -20°C for long-term storage; store solutions frozen.
Medchemexpress LLC Prostaglandin E2-d4 | 34210-10-1 | 99.9% | 356.49 | C20H28D4O5 | 50 UG
Prostaglandin E2-d4 is a deuterium-labeled analogue of prostaglandin E2 used as an internal standard for quantitative analytical assays. It is provided as a 1.40 mM solution (100 μL, 50 μg) in methyl acetate, appears as a colorless to light yellow liquid, and is intended for research use with storage at -20°C.
- Deuterium-labeled internal standard for accurate quantitation.
- High purity (99.9%) for reliable analytical results.
- Ready-to-use solution (1.40 mM in methyl acetate) for convenience.
- Compatible with LC-MS/MS and other mass spectrometry methods.
- Stable when stored at -20°C for up to 2 years.