Isotopically Labeled Compounds
Medchemexpress LLC Barnidipine-d5 | 2771469-19-1 | 99.0% | 496.57 | C27H24D5N3O6 | 1 MG
Barnidipine-d5 is a deuterium-labeled reference standard of barnidipine intended for use as a stable isotope internal standard in analytical and pharmacokinetic assays. It is supplied as a small-mass, high-purity material suitable for LC-MS/MS quantitation and method development.
- Deuterium-labeled analog (d5) to enable accurate internal standardization.
- High chemical purity (≈99.0%) for reliable analytical results.
- Molecular weight 496.57, formula C27H24D5N3O6.
- Suitable for LC-MS/MS method development and pharmacokinetic studies.
- Store sealed at -20°C; in solvent, store at -80°C for long-term stability.
Medchemexpress LLC Pregnanediol-d5 | 00-00-0 | 99.1% | 325.54 g/mol | C21H31D5O2 | 1 MG
Pregnanediol-d5 is the deuterium-labeled form of pregnanediol supplied as a powder for use as a stable isotope internal standard in quantitative analytical methods. It is intended for use as a tracer or internal standard in NMR, GC-MS, and LC-MS workflows, and is stable under recommended cold storage conditions.
- Deuterated internal standard for quantitative analysis.
- High chemical purity and isotopic enrichment.
- Available in small milligram quantities for analytical workflows.
- Stable as a powder under recommended cold storage conditions.
- Suitable as a tracer and internal standard for NMR, GC-MS, and LC-MS.
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Revvity Health Sciences Inc Pirenzepine, [N-Methyl-3H]-, 250µCi (9.25MBq)
Pirenzepine, [N-Methyl-3H]-, 250µCi (9.25MBq)
Sigma Aldrich Fine Chemicals Biosciences N,N-Dimethylformamide-(carbonyl-13C) 99 atom % 13C | 32488-43-0 | MFCD00003285 | 1G
N,N-Dimethylformamide-(carbonyl-13C) 99 atom % 13C | Purity: 99% (CP) | Mol Wt: 74.09 | 32488-43-0 | MFCD00003285 | 1G
Medchemexpress LLC Djalonensone-d3 | 2468774-90-3 | 275.27 | C15H9D3O5 | 1 MG
Djalonensone-d3 is a deuterium-labeled analog of djalonensone (CAS 2468774-90-3; molecular formula C15H9D3O5; molecular weight 275.27). Supplied in small analytical quantities, it is intended for use as a tracer and as an internal standard in quantitative NMR, GC-MS, and LC-MS workflows.
- Deuterium-labeled internal standard for quantitative analysis.
- Compatible with NMR, GC-MS, and LC-MS workflows.
- Provided in small, precisely weighed quantities suitable for reference use.
- Useful as a tracer in metabolic and analytical studies.
Sigma Aldrich Fine Chemicals Biosciences Dimethyl Sulfoxide-d6 | 2206-27-1 | MFCD00002090 | 25g
Dimethyl Sulfoxide-d6 | Purity: 99% | Mol Wt: 84.17 | 2206-27-1 | MFCD00002090 | 25g
Sigma Aldrich Fine Chemicals Biosciences Acetonitrile-d3 99.8 atom % D, contains 1 % (v/v) TMS | 2206-26-0 | MFCD00001881 | 50G
Acetonitrile-d3 99.8 atom % D, contains 1 % (v/v) TMS | Purity: 99% (CP) | Mol Wt: 44.07 | 2206-26-0 | MFCD00001881 | 50G
Sigma Aldrich Fine Chemicals Biosciences Acetyl chloride-13C2 99 atom % 13C | 89186-79-8 | MFCD00000720 | 250MG
Acetyl chloride-13C2 99 atom % 13C | Purity: 99% (CP) | Mol Wt: 80.48 | 89186-79-8 | MFCD00000720 | 250MG
Cambridge Isotope Laboratories Methanol-D4 +0.03% V/V TMS | 811-98-3 | MFCD00044637 | 10 x 0.6 mL
Methanol-D4 +0.03% V/V TMS | Purity: 99.5% | Mol Wt: 36.07 | 811-98-3 | MFCD00044637 | 10 x 0.6 mL
Medchemexpress LLC D-ribose-d6 | 99.9% | 156.17 g/mol | C5H4D6O5 | 1 MG
D-Ribose-d6 is a deuterium-labeled form of D-ribose used as an isotopic standard and tracer in analytical and biochemical research. It provides a mass-shifted reference for accurate identification and quantitation in MS and NMR studies, and is suitable for metabolic labeling and tracer experiments requiring deuterium enrichment.
- Deuterium-labeled (d6) isotopic standard.
- High purity, suitable for analytical use.
- Molecular weight 156.17 g/mol; formula C5H4D6O5.
- Compatible with mass spectrometry and NMR applications.
- Packaged for small-scale laboratory research.
![Revvity Health Sciences Inc Naloxone, [N-allyl-2,3,-<sup>3</sup>H]-](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502812831.jpg-250.jpg)
Sigma Aldrich Fine Chemicals Biosciences Dimethyl sulfoxide-d6 99.9 atom % D | 2206-27-1 | MFCD00002090 | 10G
Dimethyl sulfoxide-d6 99.9 atom % D | Purity: 99% (CP) | Mol Wt: 84.17 | 2206-27-1 | MFCD00002090 | 10G
Sigma Aldrich Fine Chemicals Biosciences Chloroform-d 99.8 atom % D | 865-49-6 | MFCD00000827 | 1KG
Chloroform-d 99.8 atom % D | Purity: >=99% (CP) | Mol Wt: 120.38 | 865-49-6 | MFCD00000827 | 1KG
Sigma Aldrich Fine Chemicals Biosciences Dichloromethane-d2 99.5 atom % D | 1665-00-5 | MFCD00000882 | 25G
Dichloromethane-d2 99.5 atom % D | Purity: >=99.00% (GC) | Mol Wt: 86.94 | 1665-00-5 | MFCD00000882 | 25G
Cayman Chemical BazedoxIfen-d4 500ug
An internal standard for the quantification of bazedoxifene by GC- or LC-MS