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Synthesized from the 5-carbon precursors isopentenyl diphosphate and dimethylallyl diphosphate; includes the carotenoids, which are precursors of vitamin A and also possess antioxidant effects.
Paclitaxel (Taxol) is a diterpenoid alkaloid initially isolated from the bark of Taxus brevifolia It exhibits antitumor activity primarily by disrupting microtubule dynamics Mechanistically paclitaxel binds tubulin and promotes microtubule polymerization thus stabilizing microtubules and inhibiting their depolymerization This mechanism impairs normal mitotic spindle formation arrests cells in G2-M phase of the cell cycle and induces apoptotic cell death Paclitaxel is extensively employed in biomedical research for investigating antineoplastic mechanisms and testing therapeutic interventions targeting various cancers such as ovarian breast head and neck and lung carcinoma
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Paclitaxel-d5 is a deuterium-labeled Paclitaxel, a naturally occurring antineoplastic agent that stabilizes tubulin polymerization. Deuteration has garnered attention due to its potential to influence the pharmacokinetic and metabolic profiles of drugs.
Can be used as a tracer.
Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.
Incorporates stable heavy isotopes of hydrogen, carbon, and other elements into drug molecules as tracers for quantitation during the drug development process.
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