Isotopically Labeled Compounds
Medchemexpress LLC Decanoic acid-d19 | 88170-22-3 | 98.4% | 191.38 | C10HD19O2 | 5 MG
Decanoic acid-d19 is the deuterium-labeled form of decanoic (capric) acid used as an isotope-labeled standard and tracer in analytical, metabolic, and pharmacokinetic research. It is a deuterated fatty acid reported to be brain-penetrant and a non-competitive AMPA receptor inhibitor; the material is supplied for laboratory use with batch documentation available.
- Deuterium-labeled (d19) analog for isotope tracing.
- High reported purity: 98.4%.
- Molecular formula C10HD19O2; molecular weight 191.38.
- Supplied in small pack sizes suitable for analytical work.
- Provided with certificate of analysis and safety data sheet.
- Suitable for metabolic, pharmacokinetic, and tracer studies.
- Useful as an internal standard for mass spectrometry.
Medchemexpress LLC Pimobendan-d3 | 74150-27-9 | 99.4% | 337.39 | C19H15D3N4O2 | 10 MG
Pimobendan-d3 is a deuterium-labeled isotopologue of pimobendan supplied as a stable-isotope reference standard for analytical and research use. It is intended for LC-MS internal standard and tracer studies and shares the pharmacological annotation of the parent compound (pimobendan), a selective PDE3 inhibitor (IC50 = 0.32 μM).
- Deuterium-labeled internal standard for LC-MS and tracer studies.
- High purity (99.43%).
- Molecular weight 337.39 Da.
- CAS number 74150-27-9 for unambiguous identification.
- Available in small vial sizes, including 10 mg, for analytical workflows.
Medchemexpress LLC Glycine-d5 | 4896-77-9 | MFCD00064427 | 98.0% | 80.10 | C2D5NO2 | 50mg
Glycine-d5 is the deuterium labeled Glycine Glycine is an inhibitory neurotransmitter in the CNS and also acts as a co-agonist along with glutamate facilitating an excitatory potential at the glutaminergic N-methyl-D-aspartic acid (NMDA) receptors
Medchemexpress LLC Dl-dithiothreitol-d6 | 850153-85-4 | MFCD00042404 | 99.0% | 160.29 g·mol-1 | C4H4D6O2S2 | 10 MG
DL-dithiothreitol-d6 (DTT-d6) is the deuterated analogue of DL-dithiothreitol, used as a reducing agent to cleave disulfide bonds and as an isotopic internal standard in analytical and mass spectrometry applications.
- Deuterated (d6) analogue suitable for mass spectrometry and isotopic labeling applications.
- High chemical purity: 99.0%.
- Molecular formula C4H4D6O2S2 and molecular weight 160.29 g·mol-1.
- Used to reduce disulfide bonds in protein and sample preparation workflows.
- Available in 10 mg pack size for analytical use.
Medchemexpress LLC Estriol-d2 | 53866-32-3 | 98.5% | 1 MG
Estriol-d2 is the deuterium labeled form of Estriol. It acts as an antagonist of the G-protein coupled estrogen receptor in estrogen receptor-negative breast cancer cells. This compound is suitable for use as a tracer and as an internal standard for quantitative analysis by techniques such as NMR, GC-MS, or LC-MS.
- Can be used as a tracer
- Functions as an internal standard for quantitative analysis (NMR, GC-MS, LC-MS)
- Deuterium labeled Estriol
- Antagonist of G-protein coupled estrogen receptor
- Molecular formula: C18H22D2O3
- Molecular weight: 290.39
- Purity: 98.47%
- Appearance: Solid, white to off-white
Cayman Chemical Bicalutamide-d4, Purity: ≥99% deuterated forms (d1-d4), CAS: 1185035-71-5, 1 mg
An internal standard for the quantification of bicalutamide by GC- or LC-MS
Cambridge Isotope Laboratories p-n-Nonylphenoxyethoxyacetic acid (unlabeled) 100 ug/mL in methanol 1 2 mL
p-n-Nonylphenoxyethoxyacetic acid (unlabeled) 100 ug/mL in methanol 1 2 mL
Medchemexpress LLC Istradefylline-13C,d3 | 2749234-46-4 | 98.3% | 388.44 g/mol | C1913CH21D3N4O4 | 5 MG
Istradefylline-13C,d3 is a 13C- and deuterium-labeled analog of istradefylline intended for use as a stable isotope internal standard in quantitative mass spectrometry and analytical workflows. It is supplied as a light-yellow solid with high reported chemical purity and packaged in small, laboratory-scale amounts for precision use.
- Stable isotope-labeled internal standard for LC-MS/GC-MS quantification.
- High chemical purity suitable for analytical applications.
- Labeled with 13C and deuterium for clear mass separation from analyte.
- Supplied as a solid for easy handling and storage.
- Available in small, precise quantities for method development and validation.
Medchemexpress LLC Adipic acid-d10 | 25373-21-1 | MFCD00190459 | 99.9% | 156.20 g·mol⁻¹ | C6D10O4 | 100 MG
Adipic acid-d10 is the deuterium-labeled analogue of adipic acid (C6D10O4, MW 156.20 g·mol⁻¹; CAS 25373-21-1) formulated for use as a tracer and internal standard in quantitative analytical workflows. It provides consistent isotopic enrichment and high chemical purity to support accurate identification and reliable quantitation in NMR, GC-MS, and LC-MS applications.
- High chemical purity suitable for analytical applications.
- Consistent isotopic labeling for reliable internal standard performance.
- Compatible with NMR, GC-MS, and LC-MS workflows.
- Available in small package sizes for laboratory use.
- Facilitates accurate quantitation and peak identification.
- Stable under typical storage conditions for labeled standards.
Cambridge Isotope Laboratories DIMETHYL-D6-AMINE:HCL (D, 98%), 5 G, 53170-19-7
DIMETHYL-D6-AMINE:HCL (D, 98%), 5 G, 53170-19-7
Cambridge Isotope Laboratories Benzyl butyl phthalate (ring-D4 98%) 0 1 g
Benzyl butyl phthalate (ring-D4 98%) 0 1 g
Medchemexpress LLC Cetirizine-d8 | 774596-22-4 | MFCD09840216 | 96.5% | 396.94 g/mol | C21H17D8ClN2O3 | 10 MG
Cetirizine-d8 is a deuterium-labeled analogue of cetirizine, a second-generation antihistamine. This isotopically labeled standard is supplied as a high-purity material for use in analytical applications, pharmacokinetic and metabolic studies, and other research workflows that require precise mass spectrometric quantitation.
- High-purity deuterated reference material for analytical assays.
- Suitable for LC-MS/MS internal standardization and method validation.
- Facilitates accurate pharmacokinetic and metabolic studies.
- Available as powder and in solvent for flexible preparation.
- Provided in small stock sizes suitable for low-volume analytical work.
Medchemexpress LLC Valproic acid-d6 | 87745-18-4 | MFCD01074058 | 99.8% | 150.25 g/mol | C8H10D6O2 | 1 MG
Valproic acid-d6 is the deuterium-labeled analogue of valproic acid used as an isotopic standard and tracer in analytical and research workflows. It provides a defined mass shift for accurate quantitation by mass spectrometry and is supplied as a high-purity reagent in small-scale quantities.
- Deuterium-labeled analogue for use as an internal standard in mass spectrometry.
- High purity suitable for analytical applications (reported 99.8%).
- Molecular formula C8H10D6O2; molecular weight 150.25 g/mol.
- Supplied as a small, 1 mg package for method development and validation.
- Store at -20°C for long-term stability; short-term storage at 4°C.
Medchemexpress LLC Scopolamine-d3 hydrobromide | 1279037-70-5 | 98.01% | 387.28 | 5 MG
Scopolamine-d3 hydrobromide is the deuterium labeled Scopolamine hydrobromide. It is a high-affinity muscarinic antagonist capable of crossing the blood-brain barrier and competitively antagonizes 5-HT3 receptors with an IC50 of 2.09 μM. This compound can induce cognitive and memory deficits in animals and is utilized in research for preventing postoperative nausea and vomiting, motion sickness, and nervous system diseases. Stable heavy isotopes like hydrogen and carbon are incorporated into drug molecules primarily as tracers for quantitation during drug development.
- Serves as a tracer.
- Can be used as an internal standard for quantitative analysis through NMR, GC-MS, or LC-MS.
- Deuteration has potential to influence the pharmacokinetic and metabolic profiles of drugs.
Revvity Health Sciences Inc Chromium-51 Radionuclide, 5mCi (185MBq), Sodium Chromate in Normal Saline (pH 8-10), Steri-packaged
Chromium-51 Radionuclide, 5mCi (185MBq), Sodium Chromate in Normal Saline (pH 8-10), Steri-packaged