APIs pour la recherche et les impuretés

<p>Lincomycin impurity B is a chemical substance which is the result of the metabolism of lincomycin. It is found in the urine and feces of patients who have taken lincomycin orally. Lincomycin impurity B has been detected in various commercial formulations of lincomycin, but its concentration varies with different batches. The HPLC standard purity for lincomycin impurity B is up to 99%. Lincomycin impurity B can be used as an analytical standard for HPLC analysis and as an API impurity in drug development. It also may be used as a research metabolite or pharmacopoeia reference material.</p>

<p>(7Alpha,17Alpha)- 9,17-Dihydroxy-3-oxo-pregn-4-ene-7,21-dicarboxylic acid di-gamma-lactone is a synthetic analogue of progesterone. It is used as a drug product for research and development purposes. The product has been shown to be metabolized through the 3beta hydroxysteroid dehydrogenase pathway or the side chain cleavage enzyme pathways. This product has not been evaluated in humans and should not be used for any human applications. (7Alpha,17Alpha)- 9,17-Dihydroxy-3-oxo-pregn-4-ene-7,21 -dicarboxylic acid di gamma lactone is an impurity standard for HPLC analysis of progesterone in urine.</p>

<p>Pirtenidine is a potent and selective kinase inhibitor that has been shown to inhibit the activity of cyclin-dependent kinases. It has demonstrated promising results in preclinical studies as an anticancer agent, inducing apoptosis in cancer cells. Pirtenidine is an analog of protein kinase inhibitors, which have been used to treat various types of tumors. It has been found to be effective against human cancer cell lines and has shown significant tumor growth inhibition in animal models. Pirtenidine has also been reported to be a potent urine inhibitor of Chinese hamster ovary cells, making it a promising candidate for the treatment of urinary tract cancers.</p>

<p>Fonofos is a potent inhibitor that has been shown to induce apoptosis in Chinese hamster ovary cells. It is also known to inhibit chitin kinase, a protein that plays an important role in the biosynthesis of chitin, which is essential for the formation of cell walls in fungi and insects. Fonofos has medicinal properties and has been studied as a potential anticancer agent due to its ability to inhibit tumor growth. In vitro studies have shown that Fonofos can inhibit the growth of human cancer cells by inhibiting heparin-binding proteins. Additionally, it has been found to have inhibitory effects on several other enzymes involved in cancer development and progression. Although not approved for use in humans, Fonofos may hold promise as a therapeutic agent for the treatment of certain cancers.</p>

<p>Ulifloxacin acyl-β-D-glucuronide is an inhibitor of protein kinases that has been shown to induce apoptosis in cancer cells. This compound is a metabolite of ulifloxacin, a fluoroquinolone antibiotic used to treat urinary tract infections. Ulifloxacin acyl-β-D-glucuronide has potent anticancer activity and has been shown to inhibit the growth of tumor cells in vitro. This compound is an analog of other kinase inhibitors and has been extensively studied in Chinese hamster ovary (CHO) cells, where it was found to be effective against various types of cancer. Ulifloxacin acyl-β-D-glucuronide also possesses toxin-binding properties and may have potential as an anti-toxin agent.</p>

<p>Benzylpenicillin diethylaminoethyl ester hydroiodide is a potent broad-spectrum antimicrobial agent that inhibits the growth of bacteria by inhibiting protein synthesis. It is used to treat microbial infections and has been shown to be effective against Streptococcus species, including Streptococcus pneumoniae, Streptococcus pyogenes, and Streptococcus viridans. Benzylpenicillin diethylaminoethyl ester hydroiodide binds to the 50S ribosome subunit of bacteria and prevents the formation of an antibiotic-inhibitor complex with the enzyme cell wall synthesis that is required for cell wall biosynthesis. This binding prevents protein synthesis and cell division.</p>

<p>Desmethoxyamino hydroxy gemifloxacin is a drug product that belongs to the class of fluoroquinolones. It is a synthetic compound with a molecular weight of 551.4 g/mol and an empirical formula of C21H25FN3O2. Desmethoxyamino hydroxy gemifloxacin has been shown to inhibit bacterial DNA gyrase and topoisomerase IV in vitro, which are enzymes that maintain the integrity of bacterial DNA. The compound binds to 16S ribosomal RNA and inhibits protein synthesis, leading to cell death by inhibiting the production of proteins vital for cell division. This drug product is metabolized into gemifloxacin, desmethoxyamino acid, and desmethylgemifloxacin. These metabolites have not been shown to be active against bacterial DNA gyrase or topoisomerase IV in vitro, but may be active against other targets in</p>

<p>Asenapine 11-hydroxysulfate is a metabolite of asenapine. It is a synthetic drug that can be synthesized from asenapine by reacting with hydrogen sulfide. Asenapine 11-hydroxysulfate may be used for the production of asenapine, or it may be used in analytical research to determine the purity and identity of asenapine.</p>

<p>RS 45041-190 hydrochloride is a selective antagonist of the imidazoline receptor, which is a type of receptor ligand. RS 45041-190 hydrochloride blocks the binding of dopamine to its receptors in the cerebral cortex and blood pressure regulation. This drug also blocks adrenoceptors and 5-hydroxytryptamine (5-HT) receptors. RS 45041-190 hydrochloride is an equated drug that has been shown to be effective for inflammatory pain caused by nerve injury. It has not been proven to be effective for other types of pain.</p>

<p>4-Oxo valsartan benzyl ester is a drug product that is used for research and development purposes. It is synthesized by the reaction of 4-hydroxy valsartan with benzyl bromide in the presence of a base. 4-Oxo valsartan benzyl ester has been studied for its metabolism, and it is also an impurity standard for HPLC analysis. The purity of this compound is &gt;98% and it has CAS number 188240-32-6.</p>

<p>SLMP53-1 is an anticancer agent that has been shown to induce apoptosis in cancer cells. It works by inhibiting kinases, which are enzymes involved in cell signaling pathways that regulate cell growth and division. SLMP53-1 has been found to be effective against a variety of tumors, including those of the bladder, breast, and lung. In addition, it has shown promising results as a potential treatment for Chinese hamster ovary (CHO) cells and human cancer cell lines. SLMP53-1 is also an analog of hepcidin, a protein that regulates iron metabolism in the body. Its unique structure allows it to bind specifically to cancer cells without affecting healthy cells, making it a promising candidate for targeted cancer therapy.</p>

<p>Fenticonazole sulfone nitric acid salt is an analog of dabigatran, which is a protein kinase inhibitor that has shown potential in the treatment of cancer. It induces apoptosis in human cancer cells and inhibits the activity of various kinases involved in tumor growth and proliferation. Fenticonazole sulfone nitric acid salt has been studied extensively for its anticancer properties, showing promising results in Chinese hamster ovary cells and urine samples from cancer patients. This drug also exhibits inhibitory effects on protein kinases that are involved in the regulation of cell cycle progression, angiogenesis, and metastasis. Overall, Fenticonazole sulfone nitric acid salt holds great promise as a potential anticancer agent.</p>

<p>NUC-7738 is a medicinal compound that has been shown to be an effective inhibitor of cyclin-dependent kinases (CDKs). It has potent anticancer activity and has been studied extensively in Chinese hamster ovary (CHO) cells, human leukemia cells, and other cancer cell lines. NUC-7738 works by selectively inhibiting CDK4/6, which are critical regulators of the cell cycle. This leads to the induction of apoptosis in cancer cells, making it a promising new therapeutic agent for the treatment of various types of cancer. Additionally, NUC-7738 has been shown to have low toxicity and good pharmacokinetic properties in preclinical studies. Overall, this compound holds great promise as a novel anticancer therapy that may help improve outcomes for patients with cancer.</p>

<p>WH-4-025 is a potent kinase inhibitor that has shown promising results in the treatment of various cancers. It is derived from Chinese medicinal herbs and has been extensively studied for its anticancer properties. WH-4-025 works by inhibiting the activity of specific kinases that are involved in tumor growth and cell cycle regulation. It has been shown to induce apoptosis in cancer cells, leading to their death, and also inhibit the growth of leukemia cells. This protein inhibitor has been found to be effective against a wide range of human cancers and is currently being investigated as a potential therapy for cancer patients. WH-4-025 is excreted through urine, making it an attractive candidate for further development as an anticancer drug.</p>

<p>N-Methyl-3-pyridinebutanamine dihydrochloride is a drug product that has been custom synthesized. This product is intended for analytical, research and development, or pharmacopoeia purposes. The CAS number of this substance is 3000-74-6. This product includes impurities at levels below 1% (w/w). The purity level of this product is &gt;98% (w/w).</p>

<p>Sinalexin is an anticancer drug that targets human protein kinases. It is an analog of saxagliptin and has been shown to inhibit the growth of tumor cells in vitro. Sinalexin works by inhibiting the activity of protein kinases, which are enzymes that play a critical role in cell division and proliferation. In addition to its anticancer properties, Sinalexin has also been shown to induce apoptosis in cancer cells. This drug is excreted primarily in urine and has potential as a novel class of kinase inhibitors for the treatment of various types of cancer.</p>

<p>N-Desmethyl trimeprazine is a synthetic compound, which is an impurity of the drug product. It is not active and does not possess any biological activity. It is a metabolite of the parent drug, Trimeprazine. N-Desmethyl trimeprazine has been studied for its pharmacological properties and metabolism in the body, but no conclusive results have been found. The chemical structure and purity of N-Desmethyl trimeprazine are not listed in the USP or BP. This compound can be custom synthesized on request.</p>

<p>Xanthoxin is a medicinal compound with potent anticancer properties. It has been shown to induce apoptosis, or programmed cell death, in cancer cells. Xanthoxin has been tested in various cancer cell lines, including Chinese and human cells, and has demonstrated strong inhibitory effects on the tumor cycle. This compound works by inhibiting kinases and other proteins involved in cancer cell growth and proliferation. Xanthoxin is also known to be an inhibitor of certain urinary proteins that are associated with cancer progression. Overall, Xanthoxin shows great potential as a natural product for the development of novel anticancer therapies.</p>

<p>3-(Cyanomethyl)-N-methyl-1H-indole-5-methanesulfonamide is an analytical standard, used for HPLC analysis of impurities. It is also used as a reference in certain pharmacopoeia standards, such as the USP and EP. 3-(Cyanomethyl)-N-methyl-1H-indole-5-methanesulfonamide has a purity of 99% and can be found in the drug product Impurity Standard.</p>

<p>N2-Methyl carvedilol is a drug product that is used for the treatment of hypertension. It belongs to the class of beta blockers and it has been shown to be metabolized in vitro by both human hepatic and intestinal cytochrome P450 enzymes. N2-Methyl carvedilol is an impurity standard for HPLC analysis. This compound is also synthesized from natural sources, but can also be synthetically reproduced.</p>