Derivados de Quinazolina e Quinolina

<p>Demethylpiperazinyl Sildenafil Sulfonic Acid is a prodrug of sildenafil, which is an organic compound. It is used in the treatment of erectile dysfunction and pulmonary arterial hypertension. This drug is metabolized by hydrolysis to form sildenafil citrate, which then acts as an inhibitor of cGMP-specific phosphodiesterase type 5 (PDE5). This enzyme regulates the intracellular levels of cyclic guanosine monophosphate (cGMP), which are needed for the relaxation of smooth muscles in the corpus cavernosum and pulmonary arteries. Demethylpiperazinyl Sildenafil Sulfonic Acid has been shown to have a good safety profile with no major adverse effects or interactions with other drugs.</p>

<p>4-Methyl-3-[4-(3-pyridinyl)-2-pyrimidinyl]amino]benzamide is a synthetic compound that has been used as an impurity standard to determine the purity of drugs. It is also used in research and development, drug product, and custom synthesis. 4-Methyl-3-[4-(3-pyridinyl)-2-pyrimidinyl]amino]benzamide has a CAS number of 851137-91-2 and is on the list of pharmacopoeias. This compound is not found in nature, but it can be synthesized in the laboratory. Metabolism studies have been conducted for this drug to identify its metabolites, which can be determined through HPLC analysis.</p>

<p>2,3,4-Trimethoxybenzaldehyde is an organic compound that is used as a chemical intermediate in the synthesis of pharmaceuticals. It is also used as a reagent in the chemical industry and as a flavoring agent. 2,3,4-Trimethoxybenzaldehyde has been shown to be metabolized by human liver microsomes to yield metabolites that are not well characterized. The impurities found in this drug product are 2-methoxy-5-methylphenol and 2,6-dimethoxyphenol.</p>

<p>Please enquire for more information about 4-[1,5-Bis-(2-methylsulfamoylethyl)-1H-indol-3-yl]-1-methylpyridinium chloride including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Chlorhexidine digluconate EP Impurity L is a metabolite of chlorhexidine digluconate. It is an impurity found in the drug product, which is used for the treatment of skin and mucous membrane infections. The mechanism of action for chlorhexidine digluconate EP Impurity L is not known. However, it has been shown to be metabolized by CYP3A4 and CYP2C9 enzymes to form chlorhexidine acetate, a metabolite that inhibits bacterial growth, and hydrolyzed by esterases to form 2-hydroxychlorhexidine acetate. This metabolite has been found in the urine of rats following oral administration with chlorhexidine digluconate EP Impurity L.</p>

<p>Rac-Benzyl phenylephrone hydrochloride is a synthetic compound that is not found in nature. It can be used as an analytical standard or a pharmacopoeia impurity standard. Rac-Benzyl phenylephrone hydrochloride has been shown to inhibit the activity of CYP3A4, an enzyme which metabolizes many drugs. As a result, it may be useful for drug development and research and could have applications in niche markets such as natural products.</p>

<p>3-[2-[4-(5-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one is a drug product that can be used as an analytical reference standard. It is a synthetic compound that is not found in nature and has CAS number 1199589-74-6. This compound has been synthesized by custom synthesis and it is an impurity standard for HPLC analysis. 3-[2-[4-(5-Fluoro-1,2-benzisoxazol-3 -yl)-1 -piperidinyl]ethyl]-6,7,8,9 -tetrahydro - 2 methyl - 4H - pyrido[1,2 -a]p</p>

<p>Granisetron is a drug that belongs to the group of serotonin receptor antagonists. It is used as an antiemetic, mainly in the prevention and treatment of nausea and vomiting caused by cancer chemotherapy and surgery. This drug has been shown to be effective in controlling nausea and vomiting, even when given after chemotherapy or surgical procedures. Granisetron hydrochloride was synthesized in 1988 by chemists at Hoffmann-La Roche. The synthesis was patented in 1990. Potential impurities are not listed on the USP or EP pharmacopeia, but these impurities have been detected during synthesis.</p>

<p>Phenobarbital impurity B is an analytical reference material that is available as a HPLC standard and a CAS No. 58042-96-9. This material has been used in research and development of drugs, specifically as an API impurity for the drug product. Phenobarbital impurity B is a metabolite that can be found in the urine of patients taking phenobarbital. It has shown to have pharmacopoeia standards. Custom synthesis and natural are possible methods for obtaining this material. Synthetic is the most common method for generating this substance.</p>

<p>Salbutamol Impurity D is a chiral, metal chelator impurity of the drug substance Salbutamol. It is a prodrug that is hydrolyzed to its active form, salbutamol sulfate, in vivo. Salbutamol Impurity D binds to chloride ions and has been shown to be an interferent for many analytical methods. The reversed-phase chromatography retention time for Salbutamol Impurity D is about 10 minutes shorter than for Salbutamol sulfate.</p>

<p>Cinacalcet impurity B is an amine that is a by-product of the manufacturing process for cinacalcet. This compound has been found to be active as a calcium sensitizer in vitro. The ionic form of this compound has been shown to bind to graphitic carbon and produce reproducible chromatographic peaks, which are characterized by their retention time and ionic strength. Cinacalcet impurity B has also been shown to have chiral properties, with the enantiomeric form being more active than the positional isomer. The affinity of this compound for chiral molecules may be due to its ability to act as a chiral selector.</p>

<p>Bupropion is a racemic mixture of two enantiomers. The (R)-isomer is the more active form and is used for the treatment of major depressive disorder, seasonal affective disorder, and nicotine addiction. Bupropion has been shown to inhibit monoamine oxidase type A in humans and other mammals. This inhibition may be responsible for its antidepressant effects. The drug also has an effect on the liver, which can lead to serious side effects such as seizures or death if not monitored carefully. Bupropion has a high affinity for α1-acid glycoprotein, which plays a role in drug interactions with other drugs that are metabolized by this protein.</p>

<p>2-[(4-Methoxy-3-methyl-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole is a synthetic, impurity standard that is used in the synthesis of drug products. It has been shown to inhibit the metabolism of drugs and may be used as a marker for drug metabolism. This compound may also be used as a marker in analytical studies to assess the purity of a drug product. 2-[(4-Methoxy-3-methyl-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole has not been evaluated for safety or efficacy.</p>

<p>1-Glycoloyl-L-prolinamide is a drug product that is an analytical standard for the impurity 1-glycoloyl-L-proline (CAS No. 96166-39-1) in the API 1,4,5,6-tetrahydrobenzothiazole (CAS No. 86687-93-0). It has been synthesized to be used as an impurity standard and is provided at a purity of 98.0% or greater by weight. This chemical compound can be used in research and development for the production of drugs as well as in pharmaceutical manufacturing.</p>

<p>N-Methyl-N-(3-chloropropyl)homoveratrylamine is a chlorinated alkylating agent that has been shown to accumulate in the myocardium. It is an anaesthetic that can be recycled and used as a nutrient. N-Methyl-N-(3-chloropropyl)homoveratrylamine binds to DNA, which blocks the synthesis of RNA and protein. This drug has been demonstrated to have antiarrhythmic effects, but it is not effective against cardiac arrhythmias caused by digitalis or hypoxia. N-Methyl-N-(3-chloropropyl)homoveratrylamine also has an antagonist effect on the central nervous system and may be useful for treating convulsions.</p>

<p>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.</p>

<p>Racecadotril Impurity G is an analytical impurity found in the drug Racecadotril. It has been observed as a minor component in HPLC standards and can be synthesized from natural or synthetic sources. Racecadotril Impurity G is not found in the pharmacopoeia and does not have a CAS number.</p>

<p>Quetiapine is a drug that belongs to the class of sulfoxides. It is usually administered orally, but can also be given intravenously or intramuscularly. Quetiapine has been studied for its clinical use in the treatment of schizophrenia and bipolar disorder. The plasma concentrations of quetiapine are determined by high-performance liquid chromatography (HPLC) with tandem mass spectrometry (LC-MS/MS) detection. Validation studies have shown that the HPLC-MS/MS method is accurate and precise, with good linearity over a range of concentrations. Analysis was performed on plasma samples from healthy volunteers who were administered either 2 mg or 10 mg doses of quetiapine by intravenous injection. Concentrations were calculated and compared to those found in patients with schizophrenia and bipolar disorder who had been given oral doses of 300 mg per day for four weeks, yielding a therapeutic plasma concentration range from 100 to 300 ng/mL.</p>

<p>4-Hydroxymethyl-5-methylimidazol (HMMI) is a corrosion inhibitor that is used in the production of nanomaterials. It has been shown to be an effective treatment for wastewater containing hydrochloric acid and organic solvents. The reaction between HMMI and the acids in wastewater forms a complex that prevents the corrosion of metal surfaces. HMMI can be synthesized by reacting aesculus with formaldehyde in an organic solvent, such as acetone or chloroform, at room temperature. HMMI has also been shown to have antiviral potency and is used in skin care products, such as lotions and shampoos, due to its ability to penetrate the skin barrier. Magnetic resonance spectroscopy (MRS) was used to study the effect of HMMI on skin cells, while electrochemical methods were used to investigate how it inhibits viral activity.</p>

<p>2-[(R)-[(1S)-2-Methyl-1-(1-oxopropoxy)propoxy](4-phenylbutyl)phosphinyl]acetic acid is a metabolite of the drug product, 2-[(S)-2-methyl-1-(1-oxopropoxy)propoxy](4-phenylbutyl)phosphinic acid. It is an impurity standard for the analytical determination of 2-[(S)-2-methyl-1-(1-oxopropoxy)propoxy](4-phenylbutyl)phosphinic acid in both drug products and in synthetic intermediates. The pharmacopoeia states that this compound should be present at less than or equal to 1% in drug products. This metabolite has been shown to have antiinflammatory activity.</p>

<p>2-O-[4-[[(2-Carboxyethyl)amino]carbonyl]phenyl] balsalazide is a drug product that has been custom synthesized and purified to high purity. It is an analytical standard for metabolism studies. This compound is metabolized through a number of metabolic transformations, including hydrolysis by esterases or glucuronidases, oxidation by cytochrome P450 enzymes, reduction by glutathione reductase, or conjugation with glucuronic acid. 2-O-[4-[[(2-Carboxyethyl)amino]carbonyl]phenyl] balsalazide is also used as a pharmacopoeia impurity standard and as a research and development HPLC standard.</p>

<p>Roflumilast is a drug used to treat chronic obstructive pulmonary disease. It is also used to treat inflammatory bowel diseases, such as Crohn's disease and ulcerative colitis. Roflumilast inhibits the enzyme cytochrome P450 in the liver, which is responsible for metabolizing certain drugs and other substances. This inhibition reduces the metabolism of these substances, leading to increased levels of these substances in the body. This can lead to side effects such as nausea, vomiting, dizziness, headache, and itching. Roflumilast also has an anti-inflammatory effect on the intestines by regulating the production of inflammatory cytokines and inhibiting the activity of pro-inflammatory enzymes.</p>

<p>Telmisartan is a drug that belongs to the class of angiotensin II receptor antagonists and is used in the treatment of hypertension. Telmisartan can be quantitatively analyzed with high sensitivity by liquid chromatography. Impurities in telmisartan can be analyzed qualitatively and quantitatively by liquid chromatography, which requires a shorter time than GC analysis.</p>

<p>2-[4-[2-(Cyclopropylmethoxy)ethyl]phenoxy]methyloxirane is a metabolite of the drug product 2-[[4-[2-(Cyclopropylmethoxy)ethyl]phenoxy]methyl]oxirane. It is an impurity in the drug product, which is a pharmaceutical intermediate that has been shown to have pharmacological properties. The CAS number for this compound is 63659-17-6 and it has been assigned the Chemical Abstracts Service (CAS) number of 63659-17-6. This compound has been characterized using HPLC and GC/MS methods.</p>

<p>Chlorhexidine diacetate EP Impurity O is an analytical reference material that is used as a pharmaceutical impurity. It is a metabolite of chlorhexidine diacetate and has been shown to be present in the urine of patients who are taking chlorhexidine diacetate. Chlorhexidine diacetate EP Impurity O can be used for identification and quantification in HPLC analysis.</p>

<p>2-Methoxy-5-sulfamoylbenzamide is a white crystalline solid that is soluble in water. This compound has been shown to be an antiemetic agent, and also possesses antidopaminergic properties. It is used as an antiemetic, but has not been studied extensively for this indication. 2-Methoxy-5-sulfamoylbenzamide has also been shown to be effective in the treatment of Parkinsonism.</p>

<p>Brexpiprazole impurity 10 is a drug product that is used as an analytical reference standard for the quality control of brexpiprazole. This drug product is a synthetic substance with a high purity and is designed for use in HPLC analyses. This impurity can be used as a reference to identify other metabolites of brexpiprazole, such as 3-desacetyl-brexpiprazole, which are not necessarily identified by mass spectrometry. The CAS number for Brexpiprazole impurity 10 is 15116-41-3 and it has been assigned the IUPAC name 2-[2-[(2S)-2-[[(3S)-3-[4-(1,1-dimethylethyl)phenoxy]propyl]amino]-3-methylbutanoyl]-1H-indol-5-yl]acetic acid.</p>

<p>3,4-Dimethoxy-N,N-dimethyl-benzeneethanamine hydrochloride is a drug product that is used as an analytical standard. This drug development chemical is not found in nature and has been synthesized in the laboratory. The chemical's structure closely resembles that of amphetamine and methamphetamine. 3,4-Dimethoxy-N,N-dimethyl-benzeneethanamine hydrochloride is used to develop analytical methods for determining impurities in APIs such as 3,4-dimethoxyamphetamine (DMA). It is also used to help identify metabolites of amphetamines. 3,4-Dimethoxy-N,N-dimethyl-benzeneethanamine hydrochloride has been shown to have a half life of approximately 12 hours and is excreted through the urine.</p>

<p>5-O-Desethyl amlodipine is a metabolite of amlodipine. It has been used as an analytical reference standard for the determination of amlodipine and its metabolites in human plasma and urine. 5-O-Desethyl amlodipine has been reported to be excreted in human breast milk at a concentration that is about 20% of that found in maternal plasma. The drug product is manufactured by HPLC and is classified as a high purity pharmaceutical drug, which means it is free from extraneous substances such as other drugs, proteins, or bacteria.</p>

<p>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.</p>

<p>1-[4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl]-5-hydroxy-1-pentanone is a drug product that is used as an HPLC standard. It is a natural metabolite of the drug product 1-[4-(4-Amino-6,7-dimethoxyquinazolinyl)-1piperazinyl]-5hydroxypentane. The synthesis of this compound has been reported in the literature.<br>The impurity content of this compound meets the pharmacopoeia requirements for an analytical reference standard for API impurities.</p>

<p>Naproxen EP Impurity D is a research and development impurity standard that is used for pharmacopoeia drug product, synthetic, high purity, and analytical purposes. Naproxen EP Impurity D is a metabolite of naproxen and has been shown to be an active form of the drug in animal studies. The CAS number for Naproxen EP Impurity D is 116883-62-6.</p>

<p>Propranolol hydrochloride is a non-selective beta-adrenergic blocker that blocks the effects of epinephrine, norepinephrine and dopamine. Propranolol hydrochloride has been shown to inhibit the activity of proximal tubules in the kidney, which may be due to its inhibition of chemical ionization. This drug also has antihypertensive activity and can be used for the treatment of cardiac disorders such as hypertension. Propranolol hydrochloride is a monoclonal antibody that is activated by nitro groups and binds with high affinity to multiple-reaction monitoring (MRM) transitions for protonated molecular ions at m/z 289, 296, 305, 313, 320, 328, 336 and 344. Propranolol hydrochloride also has vasodilatory effects on the papillary muscle which aids in regulating blood pressure by maintaining vascular resistance.</p>

<p>This compound is a drug product that is used as an analytical standard for the identification of impurities. This compound is also a Metabolism studies, Natural, API impurity, Custom synthesis, Impurity standard, Synthetic and Drug development research chemical. The CAS number for this compound is 170570-01-1 and it has HPLC standards with high purity. This compound is also a Synthetic and Pharmacopoeia Research Chemical with a niche market.</p>

<p>Brexpiprazole impurity 3 is a drug product that has been custom synthesized for research purposes. The purity of this product is high and it has been analyzed using analytical methods. This product can be used to study the metabolism of brexpiprazole, which is an atypical antipsychotic medication. Brexpiprazole impurity 3 also has pharmacopoeia standards, which can be used to develop new drugs or as a quality control standard in research and development.</p>

<p>N-[(3-Trifluoromethyl)phenyl)propyl] cinacalcet HCl is an analytical standard that is used as a HPLC impurity standard and an impurity in the synthesis of pharmaceutical drugs. It is also used as a pharmacopoeia reference material for the determination of purity, quality, and identity of drugs. This compound has been assigned a CAS number of 1271930-15-4 (free base). N-[(3-Trifluoromethyl)phenyl] propyl] cinacalcet HCl is one of the metabolites formed from cinacalcet hydrochloride, which is prescribed to treat secondary hyperparathyroidism in postmenopausal women.</p>

<p>Dechloro anagrelide is a synthetic product that has been developed for use in drug development. It is a white powder and is insoluble in water. Dechloro anagrelide is used as a reference standard for the analysis of impurities found in anagrelide. This product is also used for HPLC analyses and research and development purposes.</p>

<p>Please enquire for more information about Dutasteride EP impurity E including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Di(N-desethyl) amiodarone hydrochloride is an impurity of Amiodarone Hydrochloride, which is a drug that is used to treat and prevent serious ventricular arrhythmias. Di(N-desethyl) amiodarone hydrochloride can be synthesized from the corresponding parent compound by desmethylation with trifluoroacetic acid. It has been shown to have a low solubility in water and it is soluble in acetones, ethers, and chloroform. This impurity can be used as a HPLC standard for the analysis of Amiodarone Hydrochloride or as an analytical reference material for other liquid chromatography methods.</p>

<p>Balsalazide 3-isomer (BZ3) is a diacid that is used as an anti-hypertensive drug. BZ3 has been shown to be a prodrug of balsalazide, which is converted in vivo to the active form by hydrolysis of the ester linkage. The prodrug approach was designed to provide an orally available agent for use in patients with colitis and ulcerative colitis. The synthetic process begins with the reaction of salicylic acid and bisoprolol to form the ester product, which then undergoes a second reaction with acetyl chloride to form the acyl chloride intermediate. This intermediate reacts with balsalazide and yields BZ3 when heated to high temperatures. BZ3 contains no impurities because it is synthesized from pure starting materials, whereas commercially available balsalazide may contain impurities such as salicylic acid or colitis.</p>

<p>1-[[3-Methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]-2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]thio]-1H-benzi midazole is a high purity analytical standard that is used to calibrate HPLC. It is found as an impurity in the drug product and as a metabolite. 1-[(3-Methyl-4-(2,2,2 -trifluoroethoxy) - 2 - pyridinyl) methyl] - 2 - [[[3 - methyl (4 ( 2 , 2 , 2 - trifluoroethoxy) - 2 pyridinyl) methyl] thio] - 1 H benzimidazole is the IUPAC name for this compound. This chemical has been synthesized</p>

<p>(R,R)-Solifenacin succinate is a pharmaceutical agent that acts as an antimuscarinic drug. It has been shown to be effective in wastewater treatment, where it was found to reduce the amount of solifenacin and optimised organic chemicals in the water. This drug has also been shown to have antagonist properties against the muscarinic receptor M3.</p>

<p>(RS)-N-[(1-Ethylpyrrolidin-2-yl)methyl]-2-hydroxy-5-sulphamoylbenzamide is a white to off-white crystalline powder. It is soluble in methanol and ethanol, but insoluble in water. It has an assay of &gt;98% (HPLC), and a purity of &gt;99% (HPLC). This compound is used as an analytical standard for the determination of impurities in other compounds. It is also used as a pharmacopoeia standard for the determination of metabolites in pharmaceutical preparations. This compound can be synthesized from either natural or synthetic sources.</p>

<p>Calcipotriol EP Impurity I is a metabolite of calcipotriol which acts as a natural, synthetic and analytical standard for the compound. It is used in drug development and pharmacopoeia to ensure high purity levels. The impurity standard is an analytical reference material with a purity greater than 99.5% and contains no more than 10% of any other impurity.</p>

<p>UNC0224 is a selective inhibitor of G9a with a Ki of 2.6 nM and IC50 of 15 nM. UNC0224 also potently inhibits GLP with assay-dependent IC50 values of 20-58 nM.</p>

<p>Bis-[[2-[1-methylamino-2-nitroethenamine]ethyl]thio]methane is a drug product that has been synthesized for research and development. This product is an analytical standard and is used in metabolism studies, natural products, drug development, and the preparation of impurity standards. The CAS number for this product is 1331637-48-9. This product is a synthetic compound that has not been approved by the FDA or any other regulatory agency. It can be shipped to US destinations only.</p>

<p>4',4'''-[(4'-Methyl-2'-propyl[2,6'-bi-1H-benzimidazole]-1,1'-diyl)bis(methylene)]bis[1,1'-biphenyl]-2-carboxylic acid is an analytical reagent that is used in research and development as a drug product impurity standard. This compound has been shown to be metabolized by cytochrome P450 1A1 and 2C8 to form 4-hydroxybenzoic acid and 4,4''-[(4'-methyl-2' propyl-[2,6']bi-1H-benzimidazol-1,1' diyl)bis(methylene)]bis[3-(4-hydroxyphenyl)-propionic acid], respectively. 4',4''-[(4'-Methyl-2' propyl-[2,6']bi-1</p>

<p>2-Ethoxy-1-[2'-[1-(trityl)-1H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-1H-benzimidazole-4-carboxylic acid methyl ester is an impurity in the drug product, which is a synthetic drug for research and development. The impurity standard for 2-ethoxy-1-[2'-[1-(trityl)-1H-tetrazol-5-yl][1,1'-biphenyl]-4-yl]methyl]-1H benzimidazole 4 carboxylic acid methyl ester is available in quantities of 10g. The CAS number for the impurity is 150058-29-0. This compound has an API purity of 99.9%. Impurities are not expected to be present at greater than 1% by weight.</p>

<p>Losartan is a drug product that belongs to the class of losartan impurity. It is an impurity standard for research and development, as well as a custom synthesis. Losartan is also used in the synthesis of other drugs, such as losartan potassium, which is classified as a niche compound. Losartan impurity has been shown to be metabolized by several enzymes including CYP2C9 and CYP3A4. The metabolite identified from this study was N-desmethyl losartan.</p>

<p>Ropivacaine N-Oxide is a synthetic drug used to relieve pain during surgery. It is metabolized by the liver, with metabolites excreted in the urine. Ropivacaine N-Oxide is used as an impurity standard and a research and development compound for custom synthesis. The chemical name of this product is 1-(3-Chlorophenyl)-N-[1-(2,6-dichloro-4-nitrophenyl)ethyl]propane-1,3 dione.</p>

<p>Anastrozole is an aromatase inhibitor that has been used in the treatment of breast cancer. It binds competitively to the heme moiety of aromatase, blocking its access to substrate and thereby inhibiting estrogen production. Anastrozole dimer impurity is an analytical impurity found in drug products that is not a natural component of the API (active pharmaceutical ingredient). CAS No. 1216898-82-6 refers to this impurity standard as well as other synthetic analogues. This impurity is a custom synthesis with no pharmacopoeia standards for purity. The HPLC standard for this product is high purity (99%).</p>

<p>5-Ethyl-5-phenyl-2-(1-phenylpropyl)dihydropyrimidine-4,6(1H,5H)-dione is an impurity in the drug product of the drug 5-[3-(3,4-dihydroisoquinolin-2(1H)-yl)propoxy]-2,2'-bis[N-(2-hydroxyethyl)]ethaneamine. It is an analytical standard for HPLC and can be used as a pharmacopoeia or custom synthesis. It is also a metabolite of the drug 5-[3-(3,4-dihydroisoquinolin-2(1H)-yl)propoxy]-2,2'-bis[N-(2-hydroxyethyl)]ethaneamine.</p>

<p>2-Butyl-3-(3,5-diiodo-4-hydroxybenzoyl)benzofuran is a benzofuran. It is a yellow solid that can be dissolved in water and alcohol.</p>

<p>Thiamethoxam ((E)-thiamethoxam) is an insecticide of broad-spectrum neonicotinoids.</p>

<p>1,1'-[(1-Methylethyl)imino]bis[3-[4-(2-methoxyethyl)phenoxy]-2-propanol] is a synthetic drug product that has been custom synthesized for testing purposes. It is one of the metabolites of the drug product 1,1'-[(1-Methylethyl)imino]bis[3-[4-(2-hydroxypropyl)phenoxy]-2-propanol]. The metabolite has not been found in nature and its structure is unknown. Metabolism studies have been performed on this metabolite to determine its metabolic pathway. This metabolite is an impurity standard for HPLC analysis.</p>

<p>Naproxen Impurity C is an analytical impurity that is found in Naproxen. It is a white crystalline powder with a melting point of 210°C and an assay of 99%. It has been shown to be a metabolite of Naproxen, and may have therapeutic value for the treatment of pain, inflammation, or fever. The purity of this product has been verified by HPLC analysis.</p>

<p>Bisoprolol impurity G is a metabolite of bisoprolol. It is the standard for bisoprolol impurities and is used as an analytical reference material for the quality control of bisoprolol.</p>

<p>Dasatinib is a cancer drug that is used to treat patients with chronic myeloid leukemia and Philadelphia chromosome-positive acute lymphoblastic leukemia. It inhibits the activity of tyrosine kinases, in particular Bcr-Abl and Src. Dasatinib is a structural analog of imatinib, which has been shown to be effective against chronic myeloid leukemia by inhibiting the activity of Bcr-Abl. Dasatinib impurity is an unwanted substance found in dasatinib. It can be synthesized from formic acid, chloride and chlorine using a series of industrial processes. The salt form of dasatinib impurity is acidic and synthetic.</p>

<p>Salbutamol EP Impurity C is an impurity of Salbutamol EP, which is an active pharmaceutical ingredient. It is a hydrophilic interaction chromatography and reverse-phase high-performance liquid chromatography method that can be used to screen for the presence of impurities in this product. The detection method is based on the use of a diode array detector with a synchronous detection mode. The column used in this screening process is a liquid chromatography column with a particle size of 5 microns and a length of 250 mm, which has been packed with 5% phenyl-95% dimethyl polysiloxane stationary phase. This process requires acetonitrile as the mobile phase, and the detection wavelength ranges from 220 nm to 240 nm.</p>

<p>3-(Dimethylamino)-1-(2-thienyl)propanone hydrochloride is a sulfoxide that is used as a solvent. It has been used in the synthesis of benzylsulfoxides and solvents for the manufacture of pharmaceuticals. 3-(Dimethylamino)-1-(2-thienyl)propanone hydrochloride is also a potent compound, which is structurally similar to benzene but with an additional methyl group. 3-(Dimethylamino)-1-(2-thienyl)propanone hydrochloride has been used in the synthesis of melphalan and elemental analysis. The chloride group on its structure makes it soluble in water and organic solvents such as acetonitrile. 3-(Dimethylamino)-1-(2-thienyl)propanone hydrochloride can be synthesized by reacting nitric acid with 2-aminothiophenol and dimethylanil</p>

<p>Desdifluoromethoxy hydroxy pantoprazole is a synthetic compound that is used as an impurity standard for the drug product Pantoprazole. It has a purity of ≥98% and is stable under ambient conditions. Desdifluoromethoxy hydroxy pantoprazole is not active on its own, but it is a metabolite of pantoprazole. It can be used to study the metabolism of pantoprazole.</p>

<p>Please enquire for more information about 2-[[2-Oxo-3-[4-(3-oxo-4-morpholinyl)phenyl]-5-oxazolidinyl]methyl]-1H-isoindole-1,3(2H)-dione including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>3-[2-[4-(6-Fluoro-2-benzoxazolyl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one is a synthetic compound that functions as a drug product. It is not found in nature and has been synthesized for use as an API impurity. The CAS number for this compound is 1005191-81-0. 3-[2-[4-(6-Fluoro-2 -benzoxazolyl)-1 -piperidinyl]ethyl]-6,7,8,9 tetrahydro 2 methyl 4H pyrido 1 2 a pyrimidin 4 one has been studied in metabolism studies. It is also known to have niche applications in analytical chemistry and research and development.</p>

<p>3,4-Dimethoxyphenyl isopropyl ketone (DMPK) is a calcium antagonist that has been shown to be hypotensive in rats. It is also used as a pharmacological agent to study muscle physiology and biotransformations. DMPK has been shown to have microbial uptake and chronotropic properties, which may explain its use in the treatment of bacterial infections. DMPK binds to sulfoxides and chiral compounds, blocking their activity by inhibiting the enzyme systems involved in oxidation reactions. The drug is an analog of benzyl alcohol, with which it shares similar pharmacological profile.</p>

<p>N2-Methyl alfuzosin hydrochloride (1:1) is a synthetic compound that is used as an impurity standard for the drug product Alfuzosin. It has been shown to be metabolized by the liver, and its metabolites are excreted through the bile. The N2-methyl group of this compound provides a marker for metabolism studies and it has been shown to inhibit bacterial growth in vitro.</p>

<p>Chloromethyl olanzapinium chloride is an analytical reference material that can be used as a standard for HPLC-UV analysis. It is also used in the development of new drugs and as an impurity standard during drug manufacturing. Chloromethyl olanzapinium chloride has been shown to be a metabolite of Olanzapine, which is a niche drug product that is not commercially available. Chloromethyl olanzapinium chloride is listed by the USP, EP and JP as a drug product impurity. It can be synthesized from natural or synthetic sources.</p>

<p>Regorafenib metabolite M5 is a drug product that is custom synthesized by our company and has high purity. It can be used in metabolism studies, drug development, and pharmacopoeia due to its natural origin. It is also a synthetic compound that can be used as an impurity standard or research and development standard in HPLC.</p>

<p>N,N'-Bis[2-(3,4-dimethoxyphenyl)ethyl]-N,N'-dimethyl-1,3-propanediamine dihydrochloride is a synthetic compound that is metabolized to the natural product naphthol AS. It is an impurity in the drug product and can also be used as an analytical reference standard.</p>

<p>Solifenacin impurity C is an impurity that is found in the drug product Solifenacin. It has been shown to be a natural metabolite and has been detected in human urine. Solifenacin impurity C is used as an analytical standard for HPLC analyses of solifenacin, and can also be used as a reference material for pharmacopoeia. The purity of this compound is 99%.</p>

<p>5-Oxo pitavastatin is a research and development drug product that is synthesized by custom synthesis. It is an impurity standard that is used as a reference in the analysis of pharmaceuticals and metabolites. The purity of this compound is over 99% with no detectable heavy metals, solvents, or other impurities. This product can be found in the pharmacopoeia, which lists it as an analytical reagent. 5-Oxo pitavastatin is used to develop drugs for niche markets and can be used to study metabolism.</p>

<p>(3R,4S,5S,6R)-2-(4-Chloro-3-(4-(((S)-tetrahydrofuran-3-yl)oxy)benzyl)phenyl)-6-(hydroxymethyl)-2-methoxytetrahydro-2H-pyran-3,4,5-tr iol is an analytical standard that is used to calibrate HPLC. It has a purity of 98% and a CAS number of 915095-96-4. It is also an impurity in drug product with a purity of 95%. (3R,4S,5S,6R)-2-(4-Chloro-3-(4-(((S)-tetrahydrofuran-3-yl)oxy)benzyl)phenyl)-6-(hydroxymethyl)-2-methoxytetrahydro--</p>

<p>Risperidone E-oxime impurity is a drug product that has been studied for its metabolism in humans, animals and plants. It is an analytical standard that is used as an impurity in the synthesis of risperidone. Risperidone E-oxime impurity is also a synthetic compound with CAS No. 691007-09-7. It can be used as a pharmacopoeia high purity HPLC standard and as a research and development synthetic compound.</p>

<p>2-(3,4-Dimethoxyphenyl)-5-[2-(3,4-dimethoxyphenyl)ethylamino]-2-propan-2-ylpentanenitrile hydrochloride (DMPP) is a fluorescent chemosensor that can be used to detect the presence of phenylacetonitrile. It has been shown to have a linear response to phenylacetonitrile concentrations in rat plasma and also reacts with other compounds containing nitrogen atoms. The sensor was tested for its ability to react with drugs such as anti-tumor agents and showed strong regression correlation coefficients. This sensor has the potential to be used in pharmacokinetic studies because it can be detected by a variety of chromatographic techniques.</p>

<p>N2-Methyl alfuzosin is an impurity of Alfuzosin, a drug used to treat benign prostatic hyperplasia. It can be used as an HPLC standard for the detection and quantification of Alfuzosin in pharmaceutical products. N2-Methyl alfuzosin is a metabolite of Alfuzosin that is formed by cytochrome P450 3A4. It has been shown to have anti-inflammatory effects, which may be due to its inhibition of prostaglandin synthesis.</p>

<p>1-[[3-Methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]-2-[[[3-methyl-4-(2,2,2-trifluoroethoxy)-2-pyridinyl]methyl]sulfinyl]-1H-b enzimidazole is an impurity of a drug product. It is a metabolite that has been shown to be present in human plasma and urine. This compound is synthetically produced and is not found in nature. It has been shown to have niche applications in both analytical chemistry and pharmacopoeia.</p>

<p>Please enquire for more information about Rivaroxaban impurity 79 including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Indoxacarb is a racemic compound that is used as an insecticide. It belongs to the class of carbamate insecticides and is marketed under the trade name of "Provaunt". Indoxacarb inhibits acetylcholinesterase, which leads to increased acetylcholine in the synapse, resulting in death. The production of indoxacarb has been optimized to yield a high-level of stereoselectivity. This optimization was achieved through a biocatalytic process that uses a strain of Escherichia coli with high stereoselectivity. This strain produces indoxacarb with a high level of stereoselectivity, which can be confirmed by NMR analysis.</p>

<p>3,4-Dimethoxy-2-methylpyridine-N-oxide is a potent inhibitor of somatostatin, which is known to play a role in the regulation of cancer cell growth and apoptosis. This compound has been shown to inhibit the activity of human kinases, including those involved in tumor cell proliferation. 3,4-Dimethoxy-2-methylpyridine-N-oxide is an anticancer agent that can be used to treat various types of cancer. It has also been found to have inhibitory effects on urine quetiapine and Chinese hamster ovary cells. The compound is a potent analog of kinase inhibitors and can be used as a lead compound for developing new drugs with anticancer properties.</p>

<p>Risperidone N-oxide is a prodrug of risperidone. It is prepared by reacting risperidone with methanol and hydrogen peroxide in the presence of piperidine, followed by purification using preparative high-performance liquid chromatography. Risperidone N-oxide is a crystalline solid with a melting point of about 190 °C. Risperidone N-oxide has been shown to have antiemetic properties, which may be due to its ability to block dopamine receptors in the brain. The drug also shows some antipsychotic activity, and it has a constant therapeutic effect against schizophrenia. The major impurities found in risperidone N-oxide are hydroxylamine and piperidine.</p>

<p>Citalopram N-oxide hydrochloride is the n-oxide form of the antidepressant drug citalopram. It is a metabolite of citalopram that has been shown to have higher activity than the parent compound. The presence of citalopram N-oxide was detected in plasma samples using liquid chromatography with a wavelength of 220 nm and diethylamine as an eluent. Citalopram N-oxide hydrochloride has been shown to be pharmacologically active in animal studies, but its effects are not well understood.</p>

<p>3'-Acetyl-4'-(2,3-epoxypropoxy)butyranilide is an impurity found in the drug product of 3'-acetyl-4'-(2,3-epoxypropoxy)butyranilide hydrochloride. It has a molecular weight of 268.9 and chemical formula C12H18O6N2. 3'-Acetyl-4'-(2,3-epoxypropoxy)butyranilide is a synthetic compound that can be used as an analytical reference material for HPLC standardization or as an impurity standard for synthesis.</p>

<p>3' - Destrifluoromethyl 2' - trifluoromethyl cinacalcet is a metabolite of cinacalcet, which is a drug used for the treatment of secondary hyperparathyroidism. It is an impurity in the drug product and can be identified by HPLC.</p>

<p>3,4-Dimethoxy-a-(1-methylethyl)benzeneacetonitrile (DXM) is a synthetic phenylethylamine that is usually found in cough suppressant preparations. It has been shown to be able to cross the blood-brain barrier, and it has a constant, steady-state concentration. DXM is metabolized by N-demethylation in the liver by cytochrome P450 enzymes. This metabolism can be inhibited with the use of drugs such as chlorpromazine or ketoconazole. Pharmacokinetic modeling has been used to analyze and predict the pharmacokinetics of DXM. The drug DXM can also be synthesized from phenylacetonitrile and hydrochloric acid.</p>

<p>Please enquire for more information about 3,4-Dihydro-7-(3’carboxy)propoxy-2(1H)-quinolinone including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>2-((2-Methyl-1-(propionyloxy)propoxy)(4-phenylbutyl)phosphoryl)acetic acid (KZPBA) is a zoonotic antibiotic that has been shown to be active against agalactiae. It is a prodrug, which is metabolized to the active form, KZPBA, in humans and other mammals. The mechanism of action of KZPBA is not yet known; however, it has been hypothesized that its activity may be due to inhibition of DNA gyrase and topoisomerase IV. This drug has also been shown to have an effect on mastitis in dairy cows.</p>