Isotopically Labeled Compounds
![Cambridge Isotope Laboratories GLYCAN-N56-13C-GAL6,6' ([GALACTOSE-13C6, 99%]2)*, 500 PMOL](https://assets.fishersci.com/TFS-Assets/CCG/product-images/VN00015402-CIL-LOGO.JPG-250.jpg){kind=logo}
Cambridge Isotope Laboratories GLYCAN-N56-13C-GAL6,6' ([GALACTOSE-13C6, 99%]2)*, 500 PMOL
GLYCAN-N56-13C-GAL6,6' ([GALACTOSE-13C6, 99%]2)*, 500 PMOL
Cambridge Isotope Laboratories GLYCAN-N34-13C-GAL6,6',6'' ([GALACTOSE-13C6, 99%]3)*, 500 PMOL
GLYCAN-N34-13C-GAL6,6',6'' ([GALACTOSE-13C6, 99%]3)*, 500 PMOL
Cambridge Isotope Laboratories AMMONIUM ACETATE (15N, 98%+), 1 G, 86451-35-6
AMMONIUM ACETATE (15N, 98%+), 1 G, 86451-35-6
Medchemexpress LLC Dxd-d5 (Exatecan-d5 derivative for ADC) | 1599440-33-1 | 98.9% | 498.51 | 1 ML
Dxd-d5 is a deuterium labeled Dxd, which is a potent DNA topoisomerase I inhibitor with an IC50 of 0.31 μM. It is used as a conjugated drug of HER2-targeting ADC (DS-8201a).
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Deuteration can influence the pharmacokinetic and metabolic profiles of drugs.
- Intended for research use only.
Medchemexpress LLC Minocycline-d7 | 10118-90-8 | 464.52 | C23H20D7N3O7 | 500 UG
Minocycline-d7 is a deuterium-labeled (d7) isotopologue of minocycline supplied as a reference standard for analytical and biochemical applications. It is intended for use as an internal standard in mass spectrometry and for tracer studies where isotopic labeling provides clear mass separation from the native compound.
- Deuterium-labeled (d7) isotopologue.
- Suitable as an internal standard for mass spectrometry.
- Useful for tracer and quantitative analytical studies.
- Chemical formula C23H20D7N3O7 and molecular weight 464.52.
- Available in a 500 UG package for analytical use.
Medchemexpress LLC Vilazodone-d8 | 1794789-93-7 | 99.0% | C26H19D8N5O2 | 1 MG
Vilazodone-d8 is a deuterium-labeled vilazodone, which acts as a combined serotonin specific reuptake inhibitor (SSRI) and 5-HT1A receptor partial agonist. It can be used as a tracer and internal standard for quantitative analysis.
- Used as a tracer
- Used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
- Targets 5-HT1A Receptor
- Appears as a solid
- Color: white to off-white
- Soluble in H2O: ≥ 0.32 mg/mL (0.71 mM)
Cambridge Isotope Laboratories 3,4-DIHYDROXYPHENYLACETIC ACID (RING-D3, 2,2-D2, 98%), 0.01 G, 60696-39-1
3,4-DIHYDROXYPHENYLACETIC ACID (RING-D3, 2,2-D2, 98%), 0.01 G, 60696-39-1
Medchemexpress LLC Spermine-d20 | 71-44-3 | 98.5% | 222.46 | C10H6D20N4 | 5 MG
Spermine-d20 is a deuterium-labeled stable isotope of the endogenous polyamine spermine, supplied as a solid powder for analytical and biochemical research applications, including use as an internal standard for mass spectrometry and tracer studies.
- Deuterium-labeled analog for accurate mass spectrometry standards.
- High chemical purity: 98.5%.
- Molecular weight 222.46 and formula C10H6D20N4 for exact-mass calculations.
- White to off-white solid form, convenient for handling and storage.
- Storage recommendations: powder at -20°C (stable for 3 years); in solvent at -80°C for 6 months or -20°C for 1 month.
Medchemexpress LLC L-homocysteine-d4 | 331665-12-4 | MFCD01317494 | 94.9% | 139.21 | C4H5D4NO2S | 1 MG
L-Homocysteine-d4 is the deuterium-labeled form of L-homocysteine provided as a neat solid for use as an internal standard and tracer in quantitative analytical methods. It is intended for research and analytical applications such as LC-MS, GC-MS, and NMR, enabling isotope-dilution quantitation and method calibration.
- Deuterium-labeled L-homocysteine for isotope-dilution quantitation.
- High purity suitable for analytical standards and reference materials.
- Supplied as a white to off-white solid stable under sealed storage at 4°C.
- Soluble in water and DMSO with ultrasonic assistance for sample preparation.
- Known chemical formula and molecular weight facilitate accurate mass confirmation during analysis.
![Medchemexpress LLC 5Z-[(2E)-2-methyl-3-phenyl-d5-2-propen-1-ylidene]-4-oxo-2-thioxo-3-thiazolidineacetic acid | 2755644-33-6 | >99.0% | 324.4 g·mol⁻1 | C15H8D5NO3S2 | 5 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000284443.png-250.jpg)
Medchemexpress LLC 5Z-[(2E)-2-methyl-3-phenyl-d5-2-propen-1-ylidene]-4-oxo-2-thioxo-3-thiazolidineacetic acid | 2755644-33-6 | >99.0% | 324.4 g·mol⁻1 | C15H8D5NO3S2 | 5 MG
Epalrestat-d5 is a deuterium-labeled (d5) analogue of epalrestat supplied as a solid reference standard for analytical use. It is intended as an internal standard for quantitative GC- or LC-MS assays, providing high isotopic purity and consistent mass for accurate measurements.
- Designed as an internal standard for GC- or LC-MS quantification.
- Deuterium-labeled (d5) isotopologue for clear mass separation from the parent compound.
- High deuteration purity to minimize isotopic interference in assays.
- Slightly soluble in DMSO and methanol for use in common assay solvents.
- Well characterized molecular formula C15H8D5NO3S2 and formula weight 324.4 g·mol⁻1.
Medchemexpress LLC (Rac)-DPPC-d6 | 82765-17-1 | 98.0% | 740.08 | 10 MG
This product is a deuterated labeled phosphoglyceride used in lipid research.
- Suitable for lipid research applications.
Medchemexpress LLC (±)-Naproxen-d3 | 958293-79-3 | MFCD22572922 | 99.8% | 233.28 g/mol | C14H11D3O3 | 10 MG
(±)-Naproxen-d3 is the deuterium-labeled form of naproxen used as an analytical reference standard and tracer. It is intended as an internal standard for quantitative and metabolic studies and supports accurate method development and validation in spectrometric and chromatographic workflows.
- Deuterium-labeled internal standard for quantitative analysis.
- Suitable for NMR, GC-MS, and LC-MS applications.
- High chemical and isotopic purity for reliable quantitation.
- Supplied in small, accurately weighed quantities for analytical work.
- Molecular formula C14H11D3O3 and molecular weight 233.28 g/mol.
Medchemexpress LLC Pristane-d40 | 16416-35-6 | 50 MG
Pristane-d40 is deuterium labeled Pristane. Pristane (Norphytane) is a naturally occurring hydrocarbon oil found in small quantities in many plants, various marine organisms, and is the most active component of mineral oil. It acts as a non-antigenic adjuvant and induces MHC class II-restricted, arthritogenic T cells in rats.
- 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 BENZAMIDE (15N, 98%+), 1 G, 31656-62-9
BENZAMIDE (15N, 98%+), 1 G, 31656-62-9