Isotopically Labeled Compounds
Medchemexpress LLC Catechol sulfate-d4 sodium | 00-00-0 | MFCD00015885 | 99.8% | 216.18 g/mol | C6HD4NaO5S | 5 MG
Catechol sulfate-d4 sodium is the deuterium-labeled (d4) sodium salt of catechol sulfate supplied for analytical and tracer applications. It is intended as an internal standard for quantitative NMR, GC-MS, and LC-MS workflows and is provided with high purity and manufacturer storage recommendations to maintain stability.
- High purity (99.78%) for accurate quantitation.
- Deuterium-labeled (d4) isotopologue suitable as an internal standard.
- Sodium salt form to aid aqueous solubility.
- Compatible with NMR, GC-MS, and LC-MS analytical methods.
- Molecular weight ≈ 216.18 g/mol; formula C6HD4NaO5S.
- Recommended storage: -20°C sealed; in solvent: -80°C (6 months), -20°C (1 month).
- Available in small milligram sizes for tracer and analytical use.
Medchemexpress LLC Deoxycholic acid (Standard) | 83-44-3 | 392.57 | 100 MG
Deoxycholic acid (Standard) | 83-44-3 | 392.57 | 100 MG
Cayman Chemical 17-EstradIol-d2 500UG
An internal standard for the quantification of 17β-estradiol by GC- or LC-MS
Medchemexpress LLC 7-hydroxywarfarin-d5 | 94820-65-2 | 98.1% | 329.36 g/mol | C19H11D5O5 | 5 MG
7-Hydroxywarfarin-d5 is a deuterium-labeled isotopologue of 7-hydroxywarfarin provided for research applications as an analytical reference and internal standard. It is supplied as a white to off-white solid with specified purity and recommended storage conditions for long-term stability. Use is restricted to laboratory research and analytical workflows.
- Deuterium-labeled internal standard for mass spectrometry and quantitative assays.
- High purity suitable for analytical applications.
- Available in small mg quantities for method development and validation.
- Soluble in DMSO at high concentration; ultrasonic agitation recommended.
- Store sealed at -20°C; stock solutions stable at -80°C for up to 6 months.
Medchemexpress LLC L-Aspartic acid-13C4 | 55443-54-4 | 137.07 | 5 MG
L-Aspartic acid-13C4 is a 13C-labeled L-Aspartic acid. This amino acid can penetrate the blood-brain barrier and is commonly utilized in the preparation of prodrugs targeting colon and cecal tissues. It also finds common application in the study of inflammatory conditions.
- 13C-labeled L-Aspartic acid.
- Amino acid capable of penetrating the blood-brain barrier.
- Used in prodrug preparation for colon and cecal tissue targeting.
- Applied in inflammatory condition studies.
Cayman Chemical SynthetIc ArbutIn-d4 1mg
An internal standard for the quantification of arbutin by GC- or LC-MS
Medchemexpress LLC Nicardipine-d3 hydrochloride | 1432061-50-1 | MFCD30747912 | 99.7% | 519.00 | C26H27D3ClN3O6 | 10MG
Nicardipine-d3 hydrochloride is a deuterium-labeled hydrochloride salt of nicardipine supplied as a high-purity solid analytical standard for research use. It is intended as a tracer or internal standard for quantitative NMR, GC-MS, and LC-MS analyses in analytical and pharmacokinetic workflows.
- Deuterated tracer for quantitative analysis by NMR, GC-MS, and LC-MS.
- High purity (99.72%) suitable for analytical standard use.
- Solid hydrochloride form for stable handling and storage.
- Available in small packaging sizes tailored for analytical workflows.
- Molecular weight 519.00 and chemical formula C26H27D3ClN3O6.
- For research use only; not for human or clinical use.
Selleck Chemical LLC CK-666
CK-666 is an inhibitor of the actin-related protein 2/3 (Arp2/3) complex with IC50 of 17 M and 5 M for BtArp2/3 complex and SpArp2/3 complex respectively
Cayman Chemical Sphingosine d20 1
Composes a significant portion of CNS gangliosides; concentration increases with maturation and may be related to nervous system degeneration
Medchemexpress LLC L-Tryptophan-15N2 | 204634-20-8 | 206.21 | 1 MG
L-Tryptophan-15N2 is the 15N-labeled L-Tryptophan. L-Tryptophan is an essential amino acid that serves as a precursor for serotonin, melatonin, and vitamin B3.
- Can be utilized as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Medchemexpress LLC Isovaleric acid-13C | 87994-84-1 | 99.0% | 103.12 | 100 MG
Isovaleric acid-13C is the 13C labeled Isovaleric acid. Isovaleric acid is a natural fatty acid known to affect neonatal death and possible Jamaican vomiting sickness in humans. It is for research use only and not sold to patients.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Stable heavy isotopes of hydrogen, carbon, and other elements incorporated into drug molecules for quantitation during drug development.
eMolecules AstaTech / ACETAMIDE-15N / 0.1g / 718054738 / 41452 / 95.000 / 1449-72-5 / MFCD00084187 / 60.061 / C2H5NO
AstaTech / ACETAMIDE-15N / 0.1g / 718054738 / 41452 / 95.000 / 1449-72-5 / MFCD00084187 / 60.061 / C2H5NO
Cayman Chemical LInoleoyl EthnolamIde-d4 5mg
An internal standard for the quantification of linoleoyl ethanolamide by GC- or LC-MS