APIs para investigación e impurezas

4-(Phthalazin-1-yloxy)aniline is an analog of cyclin-dependent kinase (CDK) inhibitors that has shown promising anticancer activity. It inhibits the activity of CDKs, which are enzymes involved in regulating cell division and proliferation. This compound has been tested on Chinese hamster ovary cells and has demonstrated potent antiproliferative activity against various cancer cell lines. 4-(Phthalazin-1-yloxy)aniline induces apoptosis in tumor cells, leading to their death. This compound may be a potential candidate for the development of novel anticancer drugs that target CDKs and promote tumor cell death. Additionally, this compound can be detected in urine samples, making it a useful biomarker for cancer diagnosis and monitoring.

Pravastatin 6-oxo Impurity is an impurity of Pravastatin, a drug used in the treatment of high cholesterol. The impurity has been identified through analytical methods and is characterized by HPLC analysis. This substance has been shown to be present in at least 0.1% of the drug product and may be present as a result of incomplete synthesis or a side-reaction during synthesis.

o-Desmethyl venlafaxine N-dimer is a metabolite of venlafaxine that has been identified in human plasma. It is a white to off-white crystalline powder with a melting point of about 175°C. The purity of the product is more than 98%. It is soluble in methanol and ethanol, but insoluble in water. The o-desmethyl venlafaxine N-dimer was developed as an analytical reference standard for use in HPLC analysis of venlafaxine and its metabolites and impurities.

Albendazole sulfone is a metabolite of the drug albendazole. It is used as an analytical standard to measure the concentration of albendazole in human plasma and urine samples. The concentration-time curve for albendazole sulfone can be determined using a nonlinear regression analysis, with the rate constant being calculated from the slope and intercept. This method has been shown to be accurate for predicting pharmacokinetic parameters in humans. Albendazole sulfone is also used as a probe in wastewater treatment studies, where it binds to colloidal gold particles that are used to visualize the removal of small particles by microorganisms.

5α,6α-Epoxycholestanol-d7 is an impurity of a cholestatic drug product. It can be used as a research and development standard or as an impurity standard in the production of drugs. 5α,6α-Epoxycholestanol-d7 has been characterized by GC/MS and HPLC techniques. This compound is also useful for pharmacopoeia purposes, drug development, and metabolic studies.

Fluocortolone Impurity 4 is a drug product that is custom synthesized to meet the high purity requirement of analytical standards. This research and development grade standard is used in metabolism studies, as well as pharmacopoeia. Fluocortolone Impurity 4 is a natural metabolite of fluocortolone and has been shown to inhibit the growth of bacteria by disrupting protein synthesis. It can be found in the urine, feces, and plasma of humans. Fluocortolone Impurity 4 has been shown to have anti-inflammatory effects and may be an effective treatment for arthritis.

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N-[1-[3-(4-Ethoxyphenyl)-3,4-dihydro-4-oxopyrido[2,3-d]pyrimidin-2-yl]ethyl]-4-fluoro-N-(3-pyridinylmethyl)-3-(trifluoromethyl)-benz eneacetamide is a drug product that is used in the development of new drugs. It is an analytical standard for HPLC and was created as a natural metabolite from the antibiotic Cefazolin. N-[1-[3-(4-Ethoxyphenyl)-3,4-dihydro-4-oxopyrido[2,3-d]pyrimidin-2-yl]ethyl]-4 -fluoro -N-(3 -pyridinylmethyl) - 3 (trifluoromethyl) - benzeneacetic acid has been shown to inhibit

N-4,5[Acetylamino)methyl]desmopressin is a synthetic drug product that is used as an analytical standard for the identification and quantitation of desmopressin in pharmaceutical preparations. It is also used as an impurity standard for HPLC analysis. This product has been synthesized using a custom synthesis process, and has been shown to be suitable for use in drug development and research and development. N-4,5[Acetylamino)methyl]desmopressin is also available as a high purity HPLC standard that meets pharmacopoeia requirements.

Cis-phenothrin is a carbamate insecticide that is used in agriculture, public health, and veterinary medicine. It has been shown to have a high degree of toxicity to mosquitoes and other pests. Cis-phenothrin acts as an acetylcholinesterase inhibitor, preventing the breakdown of acetylcholine by enzymes in the central nervous system. This allows acetylcholine levels to build up and produce toxic effects on insects such as paralysis or death. Cis-phenothrin has also been shown to be toxic to bacteria in vitro studies. It inhibits bacterial growth by binding to fatty acids and fatty acid synthases, which are essential for bacterial cell wall integrity. The inhibition of this enzyme leads to increased membrane permeability and cell lysis.

Regorafenib metabolite M2 oxide (M2O) is a cancer drug that is an inhibitor of multikinase. It was developed as a prodrug for regorafenib, which is used to treat patients with metastatic colorectal cancer and has been shown to be effective against other cancers, such as lung and pancreatic cancer. M2O inhibits the efflux of drugs from cells by binding to the transporter protein P-glycoprotein. This prevents the accumulation of toxic concentrations of regorafenib in cells, which are responsible for its side effects, such as diarrhea and liver damage. The uptake of M2O by cells is also inhibited by light and acidic conditions. Oral administration of M2O leads to increased exposure to regorafenib in the body because it is not metabolized by CYP3A4 enzymes.

Dioctyl carbonate is a pharmaceutical preparation used to treat skin conditions. It is a fatty acid ester of carbonic and carbonyl groups in which the two esters are in the same molecule. Dioctyl carbonate is a reaction product obtained by reacting an inorganic acid, such as hydrochloric acid or sulfuric acid, with an alcohol containing two hydroxyl groups and one double bond. This reaction may be facilitated by heating. The film-forming polymer may be polyvinylpyrrolidone, polyvinyl alcohol, or polyacrylic acid. Dioctyl carbonate has been shown to stimulate colony-stimulating factor production and inhibit the proliferation of human epidermal keratinocytes.

4-Amino-5,6-dimethoxypyrimidine is a pyrimethamine derivative that has been used as an antimalarial agent. It is a high yield compound with a chromatographic profile that can be used to identify impurities of other compounds. 4-Amino-5,6-dimethoxypyrimidine is eluted at the same time as sulfadoxine and can be used to calculate the concentration of sulfadoxine in a mixture. It can also be used as a reagent for rp-hplc. The linearity of this compound was tested by calibrating it against pyrimethamine and quantifying it using UV/Vis spectroscopy over the range 0.05 to 1 mg/mL.

Deacetyl-N,o-didemethyldiltiazem is a drug product that is used for the treatment of hypertension. It is a synthetic compound and has not been found in nature. The impurity standard for this product is an analytical chemical that can be used to identify the presence of impurities in a sample. Deacetyl-N,o-didemethyldiltiazem can be synthesized from commercially available starting materials using custom synthesis methods. It is an API impurity and can be developed into a drug by researching and developing it as a niche therapy for hypertension. This compound has high purity and can be used as an HPLC standard.

Streptonigrin is an anticancer drug that is derived from the bacterium Streptomyces flocculus. It has been shown to induce apoptosis in cancer cells by inhibiting various kinases, including cyclin-dependent kinases and protein kinases. Streptonigrin has been found to be effective against a variety of tumors, including those of Chinese hamster ovary cells and human urine-derived cancer cells. This inhibitor analog also has a potent inhibitory effect on tumor growth in vivo.

(R)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline is a chiral molecule with four stereocenters. It is synthesized by the reaction of sulfamic acid and cyclohexene in the presence of p-toluenesulfonic acid. The product formed is then dehydrogenated to produce (R)-1-phenyl-1,2,3,4-tetrahydroisoquinoline. This compound is soluble in organic solvents such as benzene and ethane and can be used as an acceptor for chiral stationary phases.

Remdesivir related compound 7 is a drug product that is being synthesized for use in research and development. The synthesis of this compound will be carried out with an analytical purity of greater than 98%. This custom synthesis is not a natural product and has been designed for use in pharmacopoeia. Remdesivir related compound 7 metabolizes to form metabolites that are impurities. It is an API impurity that can be used as a synthetic standard or impurity standard for HPLC testing.

Trazodone Impurity A is a drug product that is an impurity standard for Trazodone. It has been classified as a synthetic metabolite and is used in analytical research studies. Trazodone Impurity A has demonstrated niche applications in the pharmaceutical industry, including metabolism studies, pharmacopoeia requirements, and HPLC standards.

Pregabalin is an anticonvulsant drug that is used to treat epilepsy, neuropathic pain, and generalized anxiety disorder. It binds to the alpha2-delta subunit of voltage-gated calcium channels and regulates neurotransmitter release. Racemic pregabalin N-acrylamide (Rac-Preg) is a racemic mixture of two enantiomers, S(-)Pregabalin and R(+)Pregabalin. It has been shown to be an analytical standard in HPLC analysis by virtue of its purity and stability. Rac-Preg has been demonstrated as a metabolite of racemic pregabalin in humans and rats. Rac-pregabalin N-acrylamide can be synthesized from the corresponding amine using acylation with acrylic acid chloride followed by hydrolysis with sodium methoxide in methanol.