APIs pour la recherche et les impuretés

Tryptoquivaline D is a metabolite of tryptoquivaline A, which is an impurity in the drug product. Tryptoquivaline D can be used as a standard for research and development or for custom synthesis. This compound has been shown to have anti-inflammatory effects and may also act as an analgesic. It has also been shown to inhibit the production of prostaglandin E2 from arachidonic acid, thereby reducing inflammation.

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Aromatic heterocyclic compounds with oxygen hetero-atom(s) only, nesoi

Impurity Levodopa EP Impurity A; Levodopa USP Related Compound A Stability Hygroscopic Applications 6-Hydroxy-L-DOPA (Levodopa EP Impurity A; Levodopa USP Related Compound A) is the 6-hydroxy derivative of the amino acid L-DOPA (D533751) with neurotoxic properties. Studies show that exogenously administered 6-Hydroxy-L-DOPA is biotransformed by amino acid decarboxylase to the highly potent and catecholamine-selective neurotoxin, 6-Hydroxydopamine. The treatment of 6-Hydroxy-L-DOPA in rats resulted in the stimulation of acetylcholinesterase. References Jaim-Etcheverry, G. et al.: Brain Res., 100, 699 (1975); Kostrzewa, R.M. et al.: Amino Acids, 14, 175 (1998); Berthet, A. et al.: J. Neurosci., 29, 4829 (2009);

Stability Hygroscopic Applications Furfural-d4 is the labeled form of Furfural, a fermentation inhibitor. Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References Larsson, S. et al.: Enz. Microbio, Tech., 24, 151 (1999);

Oseltamivir is an antiviral drug that prevents the replication of influenza viruses in the body. It is a prodrug, which means it must be converted to its active form in vivo by hydrolysis. Oseltamivir is metabolized to oseltamivir acid by the enzyme amidase, which is found in the gastrointestinal tract. Oseltamivir acid inhibits the neuraminidase enzyme, which allows viral particles to attach to and invade cells. Oseltamivir acid has a low dosage, so it can be taken orally with or without food and does not require intravenous administration. This drug also has a low toxicity profile and can be given at low dosages for long periods of time without significant side effects such as kidney problems or bone marrow suppression.

Desoxyquinocetone is a specific antibody that recognizes and binds to the quinoline ring of desoxyquinocetone. It has low bioavailability in the body, which is determined by the structural formula. The detection sensitivity of this antibody is high, and it can be used in tissue samples. This antibody also has a chromatographic method for determining carbonyl reduction and a monoclonal antibody for hybridoma cell strain. The specificity of this antibody is determined by the target tissue and strain, as well as its chromatographic method for detecting antigen.