Isotopically Labeled Compounds
Cambridge Isotope Laboratories IMIDAZOLE (D4, 98%), 1 G, 6923-01-9
IMIDAZOLE (D4, 98%), 1 G, 6923-01-9
![Revvity Health Sciences Inc Triiodothyronine, L-3, 5, 3'-[<sup>125</sup>I]-, 500 µCi (18.5MBq), Specific Activity: 1080-1320 µCi (40-48.8 MBq)/µg](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502810994.jpg-250.jpg)
Revvity Health Sciences Inc Triiodothyronine, L-3, 5, 3'-[125I]-, 500 µCi (18.5MBq), Specific Activity: 1080-1320 µCi (40-48.8 MBq)/µg
Triiodothyronine, L-3, 5, 3'-[125I]-, 500 µCi (18.5MBq), Specific Activity: 1080-1320 µCi (40-48.8 MBq)/µg
Revvity Health Sciences Inc Insulin-like Growth Factor-I (human, recombinant), 5µCi
Insulin-like Growth Factor-I (human, recombinant), 5µCi
Medchemexpress LLC 1,2-dibromoethane-d4 | 22581-63-1 | MFCD00037499 | >98.0% | 191.89 g·mol⁻¹ | C2Br2D4 | 100 MG
1,2-dibromoethane-d4 is the deuterium-labeled analogue of ethylene dibromide supplied as a neat liquid for use as an isotopic reagent, internal standard, or NMR solvent in research and synthetic applications. The product has formula C2Br2D4, CAS 22581-63-1, and a molecular weight of approximately 191.89 g·mol⁻¹. It is provided with high isotopic enrichment and chemical purity for analytical reliability. For research use only, not for human consumption.
- Deuterium-labeled (d4) for isotopic tracing and NMR applications.
- High isotopic enrichment suitable for quantitative analysis.
- Chemical purity typically >98.0% to ensure analytical reliability.
- Useful as an internal standard and reagent in synthesis and spectroscopy.
- Liquid form with formula C2Br2D4 and molecular weight 191.89 g·mol⁻¹.
- Store cold (refrigerated or -20°C recommended) to preserve stability.
Medchemexpress LLC Hexanedioic acid dimethyl ester-d8 | 52089-64-2 | 10mg
Dimethyl adipate-d8 (Hexanedioic acid dimethyl ester-d8) is the deuterium labeled Dimethyl adipate (HY-W015301) Dimethyl adipate is an aliphatic dicarboxylate compound Dimethyl adipate is mainly used as a plasticizer and an intermediate in organic synthesis
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.
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.
![Revvity Health Sciences Inc dGTP, [α-<sup>32</sup>P]- 3000Ci/mmol 10mCi/ml EasyTide, 250 µCi](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502810381.jpg-250.jpg)
Revvity Health Sciences Inc dGTP, [α-32P]- 3000Ci/mmol 10mCi/ml EasyTide, 250 µCi
dGTP, [α-32P]- 3000Ci/mmol 10mCi/ml EasyTide, 250 µCi
Medchemexpress LLC (S)-rivastigmine-d6 tartrate | 194930-00-2 | 99.0% | 406.46 | C18H22D6N2O8 | 5 MG
(S)-Rivastigmine-d6 tartrate is the deuterium-labeled form of (S)-rivastigmine tartrate supplied as a solid research standard for use as an analytical tracer, internal standard, or in quantitative studies of cholinesterase inhibition. It is intended for laboratory research and includes recommended storage and solvent guidelines for reliable handling.
- Deuterium-labeled internal standard for quantitative analysis
- High isotopic and chemical purity (99.0%)
- Stable solid with recommended storage at -20°C; in solution store at -80°C for long-term stability
- Soluble in DMF, DMSO, and ethanol at specified concentrations
- Available in small milligram quantities for analytical workflows
Cayman Chemical Deoxycholic Acid, Purity: ≥95%, CAS: 83-44-3, 100 g
A secondary bile acid; inhibits TCA-induced spore germination in seven C. difficile strains at 0.2% v/v; inhibits growth and decreases the cytotoxicity of C. difficile culture supernatants to Vero cells at 0.02% v/v; inhibits ionizing radiation-induced p53-dependent transcription in a reporter assay using HCT116 cells at 200 µM; fecal and intestinal tissue levels are increased in a rat model of high-fat diet-induced obesity compared with rats fed a normal diet; increased serum levels have been found in patients with colorectal cancer
Cayman Chemical ClozapIn-d4 500ug
An internal standard for the quantification of clozapine by GC- or LC-MS