Isotopically Labeled Compounds
Medchemexpress LLC Fulvestrant-d5 (ICI 182780-d5) | 00-00-0 | 99.7% | 611.80 | C32H42D5F5O3S | 5 MG
Fulvestrant-d5 is a deuterium-labeled analogue of fulvestrant used as an internal standard in bioanalytical and mass spectrometry workflows. It retains the parent compound's structure while providing a distinct mass shift for selective detection and precise quantitation in pharmacokinetic, metabolic, and residue analysis.
- Deuterium-labeled internal standard for LC-MS/MS assays.
- Enables accurate quantitation and reduced matrix effects.
- Suitable for pharmacokinetic and metabolic studies.
- High chemical purity and defined storage stability.
Cambridge Isotope Laboratories Modified JIS PCB Alt A Extended Calibration Solution (CS3H) 0 2 mL
Modified JIS PCB Alt A Extended Calibration Solution (CS3H) 0 2 mL
Cayman Chemical Prostaglandin D2 methyl ester
PGD2 methyl ester is a more lipid-soluble, cell-permeable prodrug form of PGD2.{14117} It binds to the human and mouse PGD2 receptors (DP1 and CRTH2/DP2) with 5-10 fold lower affinity than PGD2.{11494}
Sigma Aldrich Fine Chemicals Biosciences Acetonitrile-1-13C 99 atom % 13C | 31432-55-0 | 500MG
Acetonitrile-1-13C 99 atom % 13C | Purity: 99% (CP) | Mol Wt: 42.04 | 31432-55-0 | 500MG
Medchemexpress LLC 16:0-18:1 PS-d31 sodium | 327178-96-1 | MFCD02259271 | 99.1% | 815.18 g/mol | C40H44NO10PNaD31 | 5 MG
16:0-18:1 PS-d31 sodium is a deuterium-labeled phosphatidylserine (PS) lipid supplied as the sodium salt for research use. The d31 isotopic label enables sensitive mass spectrometry tracing and quantification in lipidomics and metabolic studies. Supplied in small research quantities, it is intended for laboratory applications only.
- Deuterium-labeled phosphatidylserine sodium salt for isotope tracing.
- High purity (99.08%) suitable for analytical applications.
- Optimized for mass spectrometry and lipidomics workflows.
- Useful as an internal standard or tracer in metabolic studies.
- Available in small research quantities for laboratory experiments.
Cambridge Isotope Laboratories 1 2 3-TriCN (PCN-13) (13C10 99%) 10 ug/mL in isooctane 1 2 mL
1 2 3-TriCN (PCN-13) (13C10 99%) 10 ug/mL in isooctane 1 2 mL
Cambridge Isotope Laboratories Orotic acid H2O (1 3-15N2 98%) 0 25 g
Orotic acid H2O (1 3-15N2 98%) 0 25 g
Medchemexpress LLC (±)-Naproxen-d3 | 958293-79-3 | C14H11D3O3 | 5 MG
(±)-Naproxen-d3 is the deuterium labeled (±)-Naproxen, which is a non-steroidal anti-inflammatory drug (NSAID). It can be used as a tracer and as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Purity of 99.77%
- Can be used as a tracer
- Serves as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Molecular weight of 233.28
- Solid appearance
- Off-white to light yellow color
- Soluble in DMSO at 100 mg/mL
- Powder stable for 3 years at -20°C and 2 years at 4°C
- Stable in solvent for 6 months at -80°C and 1 month at -20°C
Cayman Chemical ThymIn-13C5 15N2 1mg
An internal standard for the quantification of thymine by GC- or LC-MS
Cambridge Isotope Laboratories Methanol-d4 (d, 99.8%), 811-98-3, MFCD00044637, 25 g
Chemical Formula: CD3OD, MW: 36.07, 99.8%, Synonyms: Methyl hydride; Marsh gas; Natural gas.
Medchemexpress LLC Vitamin D3-d3 | 80666-48-4 | C27H41D3O | 100 UG
Vitamin D3-d3 is a deuterium labeled Vitamin D3. This naturally occurring form of vitamin D induces cell differentiation and prevents the proliferation of cancer cells.
- Deuterium labeled
- Naturally occurring form of vitamin D
- Solid, white to off-white appearance
- Purity: 98.45%
- Storage: -80°C, protect from light, stored under nitrogen
- Soluble in ethanol (1 mg/mL)
- Shipping with dry ice
- Induces cell differentiation
- Prevents proliferation of cancer cells
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Cambridge Isotope Laboratories 1 2 4-Trichlorobenzene (D3 98%) 5 g
1 2 4-Trichlorobenzene (D3 98%) 5 g