Isotopically Labeled Compounds
Medchemexpress LLC ((2-(6-Amino-9H-purin-9-yl)ethoxy)methyl)phosphonic acid-d4 | 1190021-70-5 | 98.7% | 2.5 MG
Adefovir-d4 is the deuterium labeled Adefovir, an adenosine monophosphate analog antiviral agent. After intracellular conversion to Adefovir diphosphate, it inhibits HBV DNA polymerase, with an IC50 of 0.7 μM against HBV in the HepG2.2.15 cell line. It exhibits good antiviral activity against several viruses, including HBV and herpesviruses.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Incorporation of stable heavy isotopes into drug molecules can affect pharmacokinetic and metabolic profiles.
Cayman Chemical MelatonIn-d4 500ug
An internal standard for the quantification of melatonin by GC- or LC-MS
Medchemexpress LLC 9-Octadecenoic acid (Z)-, 1,2,3-propanetriyl-1,1,2,3,3-d5 ester | 60892-83-3 | MFCD18782961 | 97.0% | 890.46 | C57H99D5O6 | 10 MG
Triolein-d5 is the deuterium-labeled form of triolein, provided as a high-purity stable isotope standard for research and analytical applications such as LC-MS and GC-MS quantification. It is a symmetrical triacylglycerol reported to reduce MMP-1 upregulation and to possess antioxidant and anti-inflammatory activity.
- Deuterium-labeled stable isotope standard for analytical use
- Chemical formula C57H99D5O6 and molecular weight 890.46
- Purity 97.0%
- Supplied as a 10 mg vial
- Soluble in DMSO (100 mg/mL); sonication recommended
- Store pure material at -20°C (3 years) or 4°C (2 years); in solvent store at -80°C (6 months) or -20°C (1 month)
Cayman Chemical Acenocoumarol-d4 500ug
An internal standard for the quantification of acenocoumarol by GC- or LC-MS
Medchemexpress LLC Pentan-3-amine-d5 | 1219802-43-3 | 92.19 g/mol | C5H8D5N | 10 MG
Pentan-3-amine-d5 is the deuterium-labeled analogue of pentan-3-amine intended for use as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, and LC-MS. Deuteration can influence pharmacokinetic and metabolic profiles, making this compound useful in drug development and analytical workflows.
- Use as a tracer for quantitation in analytical methods
- Suitable as an internal standard for NMR, GC-MS, and LC-MS
- Available in multiple sizes: 5 mg, 10 mg, 50 mg, 100 mg
- Storage: pure form -20°C (3 years) or 4°C (2 years); in solvent -80°C (6 months) or -20°C (1 month)
- Molecular formula C5H8D5N and molecular weight 92.19 g/mol
- Appearance: colorless to light yellow liquid
Medchemexpress LLC 1,2-dibromoethane-d4 | 22581-63-1 | MFCD00037499 | 99.0% | 191.89 g/mol | C2D4Br2 | 10 G
1,2-Dibromoethane-d4 is a deuterium-labeled analog of 1,2-dibromoethane used as an isotopically enriched reagent and reference standard in analytical and synthetic chemistry. It is commonly used in NMR studies and isotopic tracing applications and is provided for research use only.
- Deuterium labeled (d4) for isotopic tracing and NMR studies.
- High isotopic enrichment: 99.0% D.
- Suitable as an NMR solvent or reference standard.
- Useful as an isotopically labeled reagent in synthesis.
- Molecular formula C2D4Br2; molecular weight 191.89 g/mol.
- Supplied as 10 G quantity for laboratory use.
Medchemexpress LLC Maleic acid-d2 (Maleic-2,3-d2 acid) | 24461-33-4 | 99.3% | 118.08 g·mol⁻¹ | C4H2D2O4 | 25mg
Maleic Acid-d2 is the deuterium labeled Maleic Acid[1] Maleic Acid is a Glutamate Decarboxylase (GAD) inhibitor of E coli and L monocytogenes[2][3]
Medchemexpress LLC Glycine-13C2,15N | 211057-02-2 | 99.9% | 78.05 g/mol | 13C2H515NO2 | 5mg
Glycine-13C2 15N is the 13C- and 15N-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 Flonicamid-15N,18O | 2483830-60-8 | >98.0% | 120 UG
Flonicamid-15N,18O is an isotopically labeled internal standard of the insecticide flonicamid, provided as a methanolic solution for analytical quantification by GC- or LC-MS.
- Isotopically labeled with 15N and 18O for mass spectrometry accuracy.
- Supplied as a solution containing 120 μg in 1.2 mL methanol.
- High purity for analytical use: >98.0%.
- Molecular weight 232.15 g/mol.
- Intended as an internal standard for pesticide residue analysis.
- Safety data sheet and documentation available.
Medchemexpress LLC Ceftazidime-d5 (GR20263-d5) | 93.7% | 1 MG
Ceftazidime-d5 (GR20263-d5) is a deuterium-labeled antibiotic, specifically a version of Ceftazidime. Ceftazidime exhibits broad-spectrum activity against Gram-positive and Gram-negative aerobic bacteria, including Enterobacteriaceae (even β-lactamase-positive strains), and resists hydrolysis by most β-lactamases. Deuterium-labeled compounds, such as Ceftazidime-d5, are used as tracers for quantitative analysis during drug development, impacting pharmacokinetic and metabolic profiles.
- Deuterium-labeled version of Ceftazidime
- Exhibits broad-spectrum antibiotic activity
- Effective against Gram-positive and Gram-negative aerobic bacteria
- Active against Enterobacteriaceae, including β-lactamase-positive strains
- Resistant to hydrolysis by most β-lactamases
- Useful as a tracer
- Serves as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Benzocaine-d4 | 342611-08-9 | 169.21 g/mol | C9H7D4NO2 | 5mg
Benzocaine-d4 is the deuterium labeled Benzocaine Benzocaine shares a common receptor with all othe rLAs in the voltage-gated Na channel with an IC50 of 0 8 mM tested with a potential of 30 mV
Cambridge Isotope Laboratories L-ORNITHINE:HCL (3,3,4,4,5,5-D6, 98%), 0.25 G, 347841-40-1
L-ORNITHINE:HCL (3,3,4,4,5,5-D6, 98%), 0.25 G, 347841-40-1
Medchemexpress LLC Fumaric acid-d2 | 24461-32-3 | MFCD00144378 | 99.0% | 118.08 | C4H2D2O4 | 100 MG
Fumaric acid-d2 is the deuterium-labeled analogue of fumaric acid (CAS 24461-32-3), intended for use as an isotopic standard in metabolic flux analysis, mass spectrometry quantitation, and tracer experiments. It is provided as a high-purity solid with documented solubility and storage recommendations for both powder and solution forms.
- Deuterium-labeled isotopic standard for tracer studies.
- High purity (99.0%).
- Available in multiple pack sizes including 100 mg.
- Soluble in DMSO ≥ 100 mg/mL for in vitro applications.
- Documented storage stability for powder and prepared solutions.
![Revvity Health Sciences Inc Uridine Diphosphate N-Acetyl-D-Glucosamine, [Glucosamine-6-<sup>3</sup>H(N)]-, 50µCi (1.85MBq)](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812299.jpg-250.jpg)
Revvity Health Sciences Inc Uridine Diphosphate N-Acetyl-D-Glucosamine, [Glucosamine-6-3H(N)]-, 50µCi (1.85MBq)
Uridine Diphosphate N-Acetyl-D-Glucosamine, [Glucosamine-6-3H(N)]-, 50µCi (1.85MBq)
Medchemexpress LLC Maleic acid-d2 | 24461-33-4 | MFCD00144720 | 99.3% | 118.08 | C4H2D2O4 | 5mg
Maleic Acid-d2 is the deuterium labeled Maleic Acid[1] Maleic Acid is a Glutamate Decarboxylase (GAD) inhibitor of E coli and L monocytogenes[2][3]