Isotopically Labeled Compounds
Medchemexpress LLC L-Asparagine-15N2 hydrate | 287484-32-6 | 152.12 | 50 MG
L-Asparagine-15N2 monohydrate is the 15N-labeled L-Asparagine monohydrate. It is an essential amino acid for leukemic cells and a substrate for L-Asparaginase, a potent anti-leukemic enzyme. L-Asparaginase promotes asparagine and glutamine depletion, inhibiting protein biosynthesis in lymphoblasts, leading to inhibition of RNA and DNA synthesis and subsequent apoptosis. This compound can be used as a tracer or as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
- Used as a tracer
- Used as an internal standard for quantitative analysis
- Suitable for NMR, GC-MS, or LC-MS applications
Cambridge Isotope Laboratories 2 2 3 3 4 4 5 5-OctaCB (PCB-194) (13C12 98%) 40 /-2 ug/mL in nonane 1 2 mL
2 2 3 3 4 4 5 5-OctaCB (PCB-194) (13C12 98%) 40 /-2 ug/mL in nonane 1 2 mL
Cambridge Isotope Laboratories 4% Methanol 96% methanol-D4 1 5mm tube
4% Methanol 96% methanol-D4 1 5mm tube
Cayman Chemical Sphingosine d18 1
Sphingosine (d18:1) is formed primarily from the breakdown of ceramide. Sphingosine inhibits PKC and phosphatidic acid phosphohydrolase, whereas it activates PLD and DAG kinase. Phosphorylation of sphingosine by SPHK 1 and SPHK 2 produces sphingosine-1-phosphate, a potent bioactive lipid that exhibits a broad spectrum of biological activities including cell proliferation, survival, migration, cytoskeletal organization, and morphogenesis.
Cayman Chemical W-MurIcholIc AcId-d4 5mg
An internal standard for the quantification of ω-MCA by GC- or LC-MS
Medchemexpress LLC Rufinamide-15N,d2 | 1795037-48-7 | C10H6D2F2N315NO | 1 MG
Rufinamide-15N,d2 is the deuterium and 15N labeled version of Rufinamide, an orally active antiepileptic compound that functions by inhibiting Na+ current activation, inhibiting neuronal hyperexcitability, and providing anticonvulsant effects. It is utilized in the study of Lennox-Gastaut syndrome. This compound is intended for research use only and is not sold to patients. Stable heavy isotopes have been incorporated into drug molecules as tracers for quantitation during drug development. Deuteration can influence pharmacokinetic and metabolic profiles.
- Can be used as a tracer
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS
Medchemexpress LLC Mexiletine-d6 hydrochloride | 1329835-60-0 | 99.9% | C11H12D6ClNO | 1 MG
Mexiletine-d6 hydrochloride is a deuterium labeled Mexiletine hydrochloride. It acts as a Class IB antiarrhythmic and a non-selective voltage-gated sodium channel blocker.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Sigma Aldrich Fine Chemicals Biosciences Stearic acid-1-13C 99 atom % 13C | 85541-42-0 | MFCD00002753 | 1G
Stearic acid-1-13C 99 atom % 13C | Purity: 99% (CP) | Mol Wt: 285.47 | 85541-42-0 | MFCD00002753 | 1G
Cayman Chemical 3-CholIc AcId-d4 500ug
An internal standard for the quantification of 3β-cholic acid by GC- or LC-MS
Cayman Chemical IndapamIde-13C-d3 1mg
An internal standard for the quantification of indapamide by GC- or LC-MS
Medchemexpress LLC 9α,15S-dihydroxy-11-oxo-prosta-5Z,13E-dien-1-oic-3,3,4,4-d4 acid | 211105-29-2 | 98.8% | 356.49 g/mol | C20H28D4O5 | 25 UG
Prostaglandin D2-d4 is a deuterium-labeled analogue of prostaglandin D2 intended for use as an internal standard or tracer in quantitative analysis. It is suitable for NMR, GC-MS, and LC-MS workflows, and leverages isotopic labeling to provide mass discrimination for more accurate measurements of endogenous or spiked prostaglandin D2.
- Deuterium-labeled internal standard for accurate quantification.
- Suitable for NMR, GC-MS, and LC-MS assays.
- High purity (98.8%).
- Provided as a solution in methyl acetate for easy use.
- Stable when stored at -20°C, typical shelf life 2 years.
- Available in small, trace-analysis pack sizes (e.g., 25 μg).
