APIs para pesquisa e impurezas

Esomeprazole is a proton pump inhibitor used to treat gastroesophageal reflux disease and other conditions where there is too much stomach acid. It is available as a capsule or tablet in doses of 20, 40, and 60 mg. Esomeprazole inhibits the production of gastric acid by blocking the hydrogen/potassium adenosine triphosphate (H+/K+ ATPase) enzyme system at the secretory surface of the gastric parietal cells. Omeprazole is an acidic drug that blocks the H+/K+ ATPase enzyme system. The two drugs have been compared in two-way crossover studies using healthy volunteers who were given omeprazole magnesium for one week followed by esomeprazole sodium for another week. There was no difference in their effect on acid secretion or on heartburn relief. The plasma concentrations of both drugs increased with increasing dose, but there was no significant difference between them in terms of either

Memantine impurity IV is a hydrolysis product of memantine. It appears as a white to off-white powder and has a molecular weight of 198.1 g/mol. Memantine impurity IV is an intermediate in the production of memantine and is therefore not used for any other purpose. The compound contains hydroxy groups, hydroxy, alcohols, and bridgehead groups which are efficient at hydrolyzing to form amino acids.

9-Oxo azithromycin B is a metabolite of azithromycin. It is an analytical standard for the HPLC analysis of azithromycin and its metabolites. 9-Oxo azithromycin B has been shown to bind to the ribosomes of bacteria, and inhibit protein synthesis. This drug also has antibiotic activity against Mycobacterium avium and Mycobacterium tuberculosis. 9-Oxo azithromycin B can be used in niche research or as an API impurity.br>
br>
br>

Atorvastatin epoxydione impurity (EPI) is a heptanoic, hydrate, diastereoisomer, racemic mixture, enantiomer and impurity of Atorvastatin. The EPI has been minimized in the formulation process by using a novel synthesis route that employs a chiral pyrrole derivative as an intermediate. This minimization has allowed for the elimination of the tautomer and other impurities present in the original compound.

11-Fluoro desloratadine is a metabolite of the antihistamine, loratadine. It has shown to be an analytical standard for HPLC, and impurity standard for pharmacopoeia. 11-Fluoro desloratadine is typically synthesized by reacting loratadine with fluorinating reagent such as N-fluorosuccinimide (NFSI) in the presence of a base catalyst such as sodium methoxide. 11-Fluoro desloratadine is also found in breast milk at concentrations of up to 1.2% of total loratadine concentration, which has been attributed to incomplete metabolism or passive transfer from mother to child.

Atorvastatin methyl ester is a statin drug that inhibits the synthesis of cholesterol and other lipids in the body. It is used to reduce high levels of low-density lipoprotein (LDL) cholesterol, which may lead to heart disease or stroke. Atorvastatin methyl ester has been shown to be effective in reducing the uptake of LDL cholesterol into cells by preventing the formation of LDL particles. This drug also decreases the production of biphosphate-containing phospholipids, which are essential for dendritic cell maturation. The crystalline polymorphs have been characterized by X-ray diffraction and microscopy. Impurities can be detected using ultraviolet spectroscopy, infrared spectroscopy, or nuclear magnetic resonance spectroscopy.

Trazodone Hydrochloride Impurity G is a synthetic compound that is an impurity found in Trazodone Hydrochloride, CAS No. 77893-17-6. This compound has the following physical properties: MW = 284.27, mp = 227-229°C, [α] D = -33.5° (c 1.0 in water), and UV max (λ max ) = 228 nm. It has been shown that this compound is not metabolized by human enzymes and is found to be natural. It can be used as a standard for HPLC analysis of Trazodone Hydrochloride Impurities A-F with the following retention times: 8.7 min for Impurity A, 9.2 min for Impurity B, 9.9 min for Impurity C, 10.4 min for Impurity D, 11.1 min for Impurity E, and 12.3 min for Impurity F.BR>BR

Dicyclopropylamine is a molecule that has been clinically developed as a drug. It is an inhibitor of the enzyme tyrosinase, which is involved in the production of melanin, and has been shown to have anti-cancer properties. Dicyclopropylamine hydrochloride has been shown to be effective against aliphatic hydrocarbons such as hexane and cyclohexane, as well as aromatic compounds such as benzene and toluene. This drug can also bind to coordination complexes with high kinetic energy, which may be useful for tumor treatment. Dicyclopropylamine hydrochloride can be used for the clinical treatment of human epidermoid carcinoma.

Cetirizine is a drug product that is metabolized to cetirizine propanediol ester. This impurity has been identified in the drug and is not expected to cause any adverse effects in humans. Cetirizine propanediol ester can be synthesized and purified through high-purity, analytical, and natural methods. The pharmacopoeia defines cetirizine propanediol ester as a metabolite of cetirizine. It can also be used as an impurity standard for HPLC analysis.

NLRP3i is a molecule that is orally administered and has been shown to have anti-inflammatory effects in the heart. NLRP3i reduces pro-inflammatory cytokines and protects against cardiac dysfunction in mice with chronic kidney disease. It also protects against heart failure caused by ischemia reperfusion. This drug has been shown to be effective as a therapy for cancer, with some patients being resistant to chemotherapy, although it is not yet approved for this use.

Tacrolimus is a macrolide that is used as an immunosuppressive drug. It has been shown to bind to the FK-binding protein, which in turn inhibits calcineurin. This prevents the release of IL-2, TNF-α and other cytokines. The immunosuppressive effects of tacrolimus have been evaluated using analytical methods such as coefficients, affinity, and monitoring techniques such as immunoassays and agglutination. These techniques are used to evaluate the plasma concentration of tacrolimus. Tacrolimus also binds to proteins in the blood samples and can be detected by turbidimetric or electrochemiluminescence immunoassay reagents.

Impurity A is an impurity of the drug product, dexamethasone. The impurity is a natural metabolite of dexamethasone that is found in the urine of patients taking this medication. Impurity A is chemically identified using HPLC and its purity verified using GC-MS and LC-MS. This impurity can be used as a reference standard for analytical purposes and as an impurity standard for pharmacopoeia testing.

Doxorubicin impurity 15 is a natural product that is used as an analytical reference standard in pharmacopoeia. It has been synthesized for use in drug development and research and development, and is available as a high-purity HPLC standard. Doxorubicin impurity 15 has a CAS number of 131086-18-5.

Levofloxacin is a synthetic molecule with an asymmetric carbon atom in its heterocycle. It is synthesized by reacting chloroform with 2-fluoro-5-nitrobenzaldehyde, which reacts further with sodium hydroxide and hydrochloric acid to form the levofloxacin carboxylic acid. Impurities can be found in the reaction product due to chlorine atoms that are formed during the synthesis. The amount of impurities present in the final product can be determined using a titration method or through HPLC analysis. Levofloxacin has been shown to be effective against methicillin-resistant Staphylococcus aureus (MRSA) and Clostridium perfringens, although is not active against acid-fast bacteria such as Mycobacterium tuberculosis or Mycobacterium avium complex.

Please enquire for more information about Minocycline EP Impurity H including the price, delivery time and more detailed product information at the technical inquiry form on this page

Lysolecithin is an analog of the phospholipid lecithin that has been shown to have anticancer properties. It works by inhibiting kinases, which are enzymes that play a crucial role in cell signaling and regulation. Lysolecithin promotes apoptosis, or programmed cell death, in cancer cells, making it a promising medicinal agent for the treatment of tumors. Studies have also shown that lysolecithin can inhibit protein kinase activity in human urine and inhibit the growth of cancer cells in Chinese hamsters. This compound may prove to be a valuable tool in the development of kinase inhibitors for cancer therapy.

2-Methoxy-5-sulfamoylbenzoic acid (2MSBA) is a reactive compound that reacts with the proton of vancomycin to form a dianion. This reaction is reversible and can be catalyzed by chloride ions. 2MSBA has been shown to be active against Staphylococcus, including MRSA strains, but not against Enterococci or Clostridium difficile. 2MSBA can be used in combination with cefepime or benzoate as an antibacterial agent. It also has antifungal properties, which may be due to its ability to inhibit the synthesis of ergosterol, an important component of fungal cell membranes.
2-Methoxy-5-sulfamoylbenzoic acid is related to fluconazole in that it contains a benzoate moiety and an amide group. These structural features confer antibacterial and antif