Quinazoline and Quinoline Derivatives

<p>Applications Lodoxamide-15N2,d2 is the labelled form of Lodoxamide which is an antiallergic drug that acts as a mast cell stabilizer. It is effective in the treatment of allergic conjunctivitis and in decreasing vascular permeability.<br>References Ciprandi, G., et al.: Allergy, 51(12), 946-951 (1996); Bayer, Atilla., et al.: Ophthalmologica, 217(2), 119-123 (2003)<br></p>

<p>Applications 4-Nitrothalidomide is a compound involved in the preparation of Pomalidomide (P688200), a thalidomide derivative and potent inhibitor of TNF-α production.<br>References Huang, D., et al.: Syn. Comm., 46, 1343-1348 (2016); Ruchelman, A. et al.: Bioorg. Med. Chem. Lett., 23, 360 (2013); Latif, T. et al.: Exp. Hematol. Oncol., 1, 27 (2012); Man, H. et al.: Bioorg. Med. Chem. Lett., 13, 3415 (2003); Muller, G. et al.: Bioorg. Med. Chem. Lett., 9, 1625 (1999)<br></p>

<p>Impurity Sulpiride EPimpurity C<br>Applications ethyl 2-methoxy-5-sulfamoylbenzoate (cas# 33045-53-3) is a useful research chemical.<br></p>

<p>Impurity D721000<br>Applications Duloxetine impurity; also a related compound of Duloxetine metabolite.<br></p>

<p>Applications Descyano-Bromo-Bicalutamide is related to Bicalutamide(B382000). A non-steroidal androgen receptor antagonist that binds the androgen receptor and prevents its activation<br>References Tucker, H., et al.: J. Med. Chem., 31, 954 (1988), Cockshott, I.D., et al.: Eur. Urol., 18, Suppl. 3, 10 (1990)<br></p>

<p>Applications N-(S)-Glycidylphthalimide is a phthalimide derivative used as an intermediate in the preparation of the antibiotic Linezolid (L466500).<br>References Rajesh, T. et al.: Pharm. Chem., 3, 168 (2011);<br></p>

<p>Applications Tadalafil-13C2,d3 is labelled Tadalafil (T004500) which is used for the treatment of erectile dysfunction. It is a phosphodiesterase 5 inhibitor.<br>References Carrier, S., et al.: Can. J. Urol., 10(1), 12 (2003), Doggrell, S.A., et al.: Expert Opin. Pharmacother., 6, 75 (2005), Forgue, S.T., et al.: Br. J. Clin. Pharmacol., 61, 280 (2005)<br></p>

<p>Applications A metabolite of Propranolol.<br>References Otton, S., et al.: Br. J. Clin. Pharmacol., 30, 751 (1990), Fujita, S., et al.: J. Pharmacol. Exp. Ther., 264, 226 (1993), Bichara, N., et al.: Drug Metab. Dispos., 24, 112 (1996), Tasaki, T., et al.: J. Biochem., 123, 162 (1998),<br></p>

<p>Applications 2,3-Bis[(acetyloxy)methyl]-1-oxoquinoxalin-1-ium-4(1H)-olate is an antibiotic.<br>References Marrero-Ponce, Yovani, et al.: Bioorg. &amp; Med. Chem., 13(8), 2881-2899 (2005)<br></p>

<p>Stability Hygroscopic<br>Applications Intermediate in the preparation of D-threo-Methylphenidate (Ritalin)<br></p>

<p>Stability Hygroscopic<br>Applications Bendamustine (B132500) impurity.<br></p>

<p>Impurity Anastrozole EP Impurity E<br>Applications 2-[3-(Cyanodimethylmethyl)-5-hydroxymethylphenyl]-2-methylpropionitrile (Anastrozole EP Impurity E ) is an impurity of Anastrozole (A637425), an aromatase inhibitor which functions as an antineoplastic (1,2). Anastrozole is used in post-menopausal women with advanced breast cancer.<br>References 1. Plourde, P. et al.: Breast Cancer Res Treat. 1994;30(1):103-112. Buzdar, A. et al.: Cancer. 1997 Feb 15;79(4):730-9.<br></p>

<p>Applications The labelled (S)-enantiomer of Etiracetam (E932970) and the ethyl analog of Piracetam (P500800). Used as an anticonvulsant.<br>References Gower, A.J., et al.: Eur. J. Pharmacol., 222, 193 (1992); Kasteleijn-Noist Trenite, D.G.A., et al.: Epilepsy Res., 25, 225 (1996); Patsalos, P.N., et al.: Pharmacol. Ther., 85, 77 (2000),<br></p>

<p>Applications A labelled metabolite of Imipramine.<br>References De Jongh, G.D., et al.: Drug Metab. Dispos., 2, 48 (1981), Suckow, R.F., et al.: J. Pharm. Sci., 73, 1745 (1984), Fraser, A.D., et al.: J. Anal. Toxicol., 11,168 (1987),<br></p>

<p>Impurity Loratadine EP Impurity F; Loratadine USP Related Compound G Impurity<br>Applications Loratadine Impurity F (Loratadine EP Impurity F; Loratadine USP Related Compound G Impurity) is a fluorinated analog of Loratadine (L469575), which is a nonsedating-type histamine H1-receptor.<br>References Bruttmann, G., et al.: J. Allergy Clin. Immunol., 83, 411 (1989), Haria, M., et al.: Drugs, 48, 617 (1994)<br></p>

<p>Applications A metabolite of Irbesartan (M8).<br>References Cazaubon, C., et al.: J. Pharmacol. Exp. Ther., 265, 826 (1993), Eberhardt, R., et al.: J. Clin. Pharmacol., 33, 1023 (1993), Huskey, S., et al.: Drug Metab. Dispos., 21, 792 (1993), van Den Meiracker, A., et al.: Hypertension, 25, 22 (1995),<br></p>

<p>Applications 6-Hydroxy-7-methoxy-4(1H)-quinazolinone is a reactant used in the preparation of 4-anilinoquinazoline derivatives that have shown antitumor activities. 6-Hydroxy-7-methoxy-4(1H)-quinazolinone was also used as a reactant in the synthetic preparation of 2-arylbenzothiazoles as kinase inhibitors.<br>References Chandregowda, V., et al.: Eur. J. Med. Chem., 44, 3046 (2009); Tasler, S., et al.: Bioorg. Med. Chem. Lett., 17, 6728 (2009);<br></p>

<p>Applications 4-Chloro Perphenazine is an impurity of Perphenazine (P291100), an D2 dopamine receptor antagonist; α-adrenergic receptor antagonist and σ-receptor agonist; phenothiazine antipsychotic.<br>References Briggs, K., et al.: Toxicology, 231, 113 (2007), Toga, T., et al.: J. Pharmacol. Sci., 105, 207 (2007),<br></p>

<p>Applications A metabolite of Imipramine.<br>References Gram, L.F., et al.: Clin. Pharmacol. Therap., 17, 555 (1975), Hackett, A.M., et al.: Xenobiotica, 14, 491 (1984), Chiba, M., et al.: Biochem. Pharmacol., 39, 367 (1990),<br></p>

<p>Applications 5-[1-Hydroxy-2-(2,4,5-trifluorophenyl)ethylidene]-2,2-dimethyl-1,3-dioxane-4,6-dione is an impurity of the DPP-IV inhibitor Sitagliptin (S491000).<br>References Ye, F. et al.: Hech. Huax., 18, 767 (2010); Ahn, J.H, et al.: Bioorg. Med. Chem. Lett., 17, 2622 (2007);<br></p>

<p>Applications Efavirenz 3-Desoxy is an analog of Efavirenz (E425000), a nonnucleoside HIV-1 reverse transcriptase inhibitor. Antiviral.<br>References Young, S.D., et al.: Antimicrob. Ag. Chemother., 39, 2602 (1995)<br></p>

<p>Applications 1-Methyl-1H-indazole-3-carboxylic Acid Anhydride is an impurity of Granisetron (G780000), a specific serotonin (5HT3) receptor antagonist and a antiemetic agent.<br>References Kilpatrick, G.J., et al.: Nature, 330, 746 (1987); Durig, T., et al.: J. Pharm. Sci., 86, 1092 (1997); Yuasa, H., et al.: Chem. Pharm. Bull., 44, 1361 (1996); Vishnu, E.V.R., et al.: Lett. Org. Chem., 8, 722 (2011);<br></p>

<p>Applications N-Nitroso-1-(2-methoxyphenyl)piperazine is a reagent used in the preparation of 9-aminoacridine-based agents that impair bovine viral diarrhea virus replication.<br>References Loddo, R. et al.: Bio. &amp; Med. Chem., 26(4), 855-868, (2018)<br></p>

<p>Applications 7,8,9,10-Tetrahydro-8-(trifluoroacetyl)-6,10-methano-6H-pyrazino[2,3-h][3]benzazepine is used to prepare varenicline, which is a smoking cessation. It is a Varenicline protected impurity.<br>References Coe, J., et al.: J. Med. Chem., 48, 3474 (2005) ;<br></p>

<p>Stability Hygroscopic<br>Applications Plerixafor Hydrochloride (1:8), is an immunostimulant used to mobilize hematopoietic stem cells in cancer patients. It is a hematopoietic stem cell (HSC) mobilizer that inhibits the CXCR4 chemokine receptor and blocks binding of its ligand, stromal cell-derived factor-1-α (SDF-1-α).<br>References Xie, T., et al.: Science, 290, 328 (2000), Leone, D., et al.: J. Pharmacol. Exp. Ther., 305, 1150 (2003), Chigaev, A., et al.: J. Immunol. 178, 6828 (2007), Kiel, M., et al.: Cell Stem Cell, 1, 204 (2007),<br></p>

<p>Applications 5-(4-methylphenyl)imidazolidine-2,4-dione (cas# 69489-37-8) is a useful research chemical.<br></p>

<p>Applications 6-(4-Phenylbutoxy)-1-hexanamine is an intermediate in the synthesis of salmeterol (S090100), a structural analog of Albuterol (A514500).<br>References Goswami, J., et al.: Tetrahedron. Asym., 12, 3343 (2002);<br></p>

<p>Applications Haloperidol pyridinium Chloride is a neurotoxic pyridinium metabolite of haloperidol that is formed in the liver and found in the brain. Haloperidol pyridinium Chloride is a substrate for human organic cation transporters.<br>References Kang, H. et. al.: Drug Metab. Dispos., 34, 1145 (2006)<br></p>

<p>Applications Rilmazafone Hydrochloride can be used in biological study of nitrazepam or rilmazafone hydrochloride combined with ethanol effects on human memory. It is also used as sleep aid medication.<br>References Suzuki, M., et al.: Neurosciences (Okayama, Japan), 20, 43 (1994)<br></p>

<p>Applications 2-(Bromomethyl)-3-nitrobenzoic Acid Methyl Ester (cas# 98475-07-1) is a compound useful in organic synthesis.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br></p>

<p>Impurity Topiramate N-methyl impurity<br>Applications N-Methyl Topiramate, is an impurity of Topiramate (T540250); which is an anticonvulsant (antiepilepsy) drug, that has been approved for weight loss by FDA.<br>References Maryanoff, B.E., et al.: J. Med. Chem., 30, 880 (1987), Bialer, M.: Clin. Pharmacokinet., 24, 441 (193),<br></p>

<p>Stability Hygroscopic<br>Applications A possible metabolite of Trazodone-HCl (T718500).<br></p>

<p>Applications A new known impurity of Carvedilol (C184625), published in Carvedilol USP monograph.<br></p>

<p>Applications Labelled S-Verapamil (V124991). Both isomers inhibit the p-glycoprotein efflux pump in multidrug resistant tumor cells.<br>References Peroutka, S., et al.: J. Ann. Neurol, 23, 500 (1988), Eliason, J.F., et al.: Int. J. Cancer, 46, 113 (1990),<br></p>

<p>3-(Dimethylamino)-1-(2-thienyl)propan-1-ol is an organic compound that is used as a chiral building block in the synthesis of drugs. It is not currently used in any known drug, but it has been shown to be racemized at high temperatures. 3-(Dimethylamino)-1-(2-thienyl)propan-1-ol is also a byproduct of pollution and can be found in the environment where it may be degraded by bacteria.</p>

<p>Valdecoxib impurity I is a synthetic compound that is used as an impurity standard for the drug product Valdecoxib. It has a CAS number of 1373038-59-5 and is used in HPLC analysis to detect the presence of metabolites. Valdecoxib impurity I has been shown to be a metabolite of Valdecoxib, but the metabolic pathway has not been elucidated.</p>

Icotinib Hydrochloride, an oral EGFR inhibitor (BPI-2009H), may halt cancer growth by blocking EGFR signaling.

rac-N-Desisopropyl-N-ethyl acebutolol is a synthetic drug product. It is an analytical standard for the impurity, acebutolol, and is metabolized by cytochrome P450 3A4 to form the major metabolite, N-desisopropyl acebutolol. rac-N-Desisopropyl-N-ethyl acebutolol is a research and development product that can be custom synthesized to meet specific needs. It has been shown to have antihypertensive properties in rats and monkeys. This product is not intended for human use.

<p>Cyamemazine sulfoxide is a histamine H1 receptor antagonist. It has been shown to have strong affinity for the serotonin 5-HT2C and dopamine D2 receptors, as well as the atrial 5-HT2A receptors. Cyamemazine sulfoxide has a low oral bioavailability of about 10% and is metabolized in the liver to cyamemazine and its active form, cyamemazine sulfoxide. Cyamemazine sulfoxide binds to serotonin 5-HT2C receptors with a high affinity, which leads to inhibition of serotonin release from nerve endings in the brain. This drug also inhibits dopamine release from nerve endings in the brain and has been shown to have cardiac effects on heart rate and contractility.</p>

<p>2’-[(1E)-2-[4-[[(2-Carboxyethyl)amino]carbonyl]phenyl]diazenyl] balsalazide is a chemical substance that has been used as an analytical standard and as a research and development (R&amp;D) tool. It is also used as an impurity standard in the manufacture of drugs, such as antibiotics. 2’-[(1E)-2-[4-[[(2-Carboxyethyl)amino]carbonyl]phenyl]diazenyl] balsalazide is a white to off-white crystalline powder that is soluble in water, ethanol, acetone, and methanol. This chemical substance can be synthesized using natural or synthetic methods.</p>

<p>Methyl 3-aminocrotonate is an intermediate in the synthesis of pyridinedicarboxylic acid. It is a white powder with a melting point of 160-165°C and a boiling point of 263°C. Methyl 3-aminocrotonate is soluble in water, alcohols, ethers, chloroform, and benzene. It has been detected by its UV absorption at 227 nm. The detection sensitivity for this compound was found to be 0.1 ppm. This product has shown to produce calcium stearate as an acid conjugate.<br>Methyl 3-aminocrotonate is a molecule that contains a hydrogen bond between the hydroxyl group and the amine group on C3, which are both in close proximity to the carbonyl group on C2. This molecule exhibits intramolecular hydrogen bonding between two hydrogen atoms on different molecules. <br>The IR spectrum for methyl 3-aminoc</p>

<p>Alpha-Desmethyl anastrozole is a synthetic chemical that has been used as an impurity standard for the drug product, Anastrozole (Arimidex). This compound is metabolized in humans and is a metabolite of Arimidex. Alpha-Desmethyl anastrozole exhibits high purity and can be synthesized using custom synthesis. The CAS number for this compound is 1215780-15-6.</p>

<p>(S)-(-)-2-Aminomethyl-1-ethylpyrrolidine is a compound that belongs to the class of cyclohexane ring. It has been shown to possess potent anti-infective activity against bacteria and fungi, but not against viruses. It is an inorganic compound that can be synthesized by the chlorination of (S)-(-)-2-aminoethanol. This method is efficient and does not require any organic solvents or catalysts. The binding of inhibitors to the enzyme can be studied by using this molecule as a model system. This molecule also has application as a coating for metal surfaces, which can inhibit corrosion.</p>

Please enquire for more information about Methyl 4-[[1-(ethoxycarbonyl)-2-oxocyclopentyl]methyl]-α-methylbenzeneacetate including the price, delivery time and more detailed product information at the technical inquiry form on this page

<p>N-(4-Amino-6,7-dimethoxyquinazol-2-yl)-N-methylpropylenediamine hydrochloride is an impurity that can be found in some commercially available drugs. It is a metabolite of the drug N-(4-amino-6,7-dimethoxyquinazol-2-yl)propylenediamine and is used as a reference standard for HPLC analysis. This compound has been shown to have antiplatelet activities.</p>

<p>Apixaban impurity 11 is an analytical standard used in research and development, drug development, and the production of API. It has a purity of 99.5% by HPLC and is a metabolite of apixaban. Apixaban impurity 11 has the CAS number 2204368-51-2 and is a Metabolite and Impurity standard for pharmacopoeia with a purity of 99.5% by HPLC. This product can be custom synthesized or natural with a purity of 99.5% by HPLC.</p>

<p>1-Phenyl-1,2,3,4-tetrahydro-isoquinoline is a synthetic compound which has been used as a lead compound for the development of drugs with dopamine β-hydroxylase inhibitory activity. In vitro studies have shown that 1-phenyl-1,2,3,4-tetrahydro-isoquinoline inhibits human serum dopamine β-hydroxylase and can be used to study the possible role of this enzyme in Parkinson's disease. This drug is racemized in the body and has been found to be effective against Parkinson's disease in rats. It is also an enantiomer that has industrial applications for the production of polyurethane foam insulation coatings.</p>

<p>3-amino-2,6-dimethoxy-4-(4-amino-7-hydroxy-6-methoxyquinazolin-2(1H)-yl)piperazine (DMQA) is a synthetic compound. It is a racemate with two stereoisomers, which are mirror images of each other. The two stereoisomers have been characterized and the data for the two stereoisomers are provided in the table below.</p>

<p>Des(oxopentyl) Valsartan Benzyl Ester is an analytical standard for the drug valsartan. It is a white to off-white, crystalline powder that is soluble in methanol and acetone. This compound can be used as an HPLC standard, or as an impurity standard in the development of valsartan drugs. Des(oxopentyl) Valsartan Benzyl Ester also has niche uses in natural product isolation and synthetic organic chemistry. It is a metabolite of des(oxopentyl)valsartan, which is a prodrug of valsartan.</p>

<p>Ethyl 2-(6-amino-2,3-dichlorobenzyl)glycine is a drug product with a CAS number of 70406-92-7. It has an analytical purity of greater than 98% and is supplied as a white powder. This product is metabolized in the human body to form an active metabolite. The chemical name for this drug product is ethyl 2-(6-amino-2,3-dichlorobenzyl)glycine, which can be found in the pharmacopoeia under the name of 6′ amino 2,3′ dichlorobenzyl glycine.</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>Granisetron is a serotonin 5-hydroxytryptamine 3 (5-HT3) receptor antagonist. It is used in the prevention and treatment of nausea and vomiting caused by cytotoxic chemotherapy, radiation therapy, or surgery. Granisetron hydrochloride is a white to off-white powder with a molecular weight of 476.0. The chemical formula for granisetron hydrochloride is C22H24ClN2O2S. This drug has been shown to be efficient in the prevention and treatment of nausea and vomiting caused by cytotoxic chemotherapy, radiation therapy, or surgery. The potential impurities are as follows: <br>1) 1-Desmethyl 2-methyl granisetron <br>2) 2-Methyl granisetron <br>3) 2-Methyl 3-(4'-hydroxyphenyl)propionitrile <br>4) 2-(4'-Hydroxyphenyl)-3-(</p>

<p>Chlorhexidine dihydrochloride impurity B is an impurity found in chlorhexidine dihydrochloride, a drug that is used as an antiseptic and disinfectant. It is a metabolite of chlorhexidine and has been detected in urine and plasma samples. This impurity has no known pharmacological activity. The purity of this compound is not less than 99%.</p>

<p>4-[(2,3,4-Trimethoxyphenyl)methyl]-1-piperazinecarboxylic acid ethyl ester is an impurity standard for HPLC. It is a white or off-white solid that is soluble in organic solvents. The compound has been shown to be a metabolite of the drug product, and can also be found as an impurity in the API. 4-[(2,3,4-Trimethoxyphenyl)methyl]-1-piperazinecarboxylic acid ethyl ester can be synthesized from 2,3,4-trimethoxybenzoic acid and 1-(2-chloroethyl)piperazine.</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>N,N-Dimethylaminoethyl-a-(1-Hydroxycyclopentyl)phenylacetate hydrochloride (DMAEA) is a drug that is used as an ophthalmic. It has been shown to be safe and effective in patients with chronic open angle glaucoma, and it may also have some efficacy for the treatment of other conditions such as uveitis and retinal detachment. DMAEA is thought to work by binding to the DNA in the eye’s optic nerve cells and blocking the production of leukotrienes. This drug has also been shown to have anti-inflammatory properties.</p>

N-(3-hydroxytricyclo[3.3.1.1]dec-1-yl)glycyl-L-prolinamide is a metabolite that is formed when the drug product, ticagrelor, undergoes metabolism in the liver. Ticagrelor is a prodrug that requires conversion to its active form, which is N-(3-hydroxytricyclo[3.3.1.1]dec-1-yl)glycyl-L-prolinamide, before it can be used as a platelet inhibitor and antiplatelet agent for the prevention of thrombotic events such as heart attack and stroke. It has been shown to have an excellent stability profile and high purity when produced by HPLC or synthesized using the latest methodology under GMP conditions.

<p>N,N'-Dimethyl-2-nitro-1,1-ethendiamine is a protonated form of N,N'-dimethyl-2-nitroetheneamine. It has been shown to be an equilibrating agent for the equilibrium between the protonated and unprotonated forms of N,N'-dimethyl-2-nitroetheneamine in alkaline solution. In this way it can be used to determine the pH of an unknown solution. The equilibrium constant is 10^14 at 25 degrees Celsius. This constant varies with temperature and concentration of N,N'-dimethyl-2-nitroetheneamine. The electronic spectra show that this molecule is an anion.</p>

<p>Amiodarone is a drug product that is used in the treatment of various heart conditions. It contains impurity G and HCL. Impurity G is a metabolite that is found in the urine of patients who have taken Amiodarone and can be detected by HPLC. Impurity G has not been shown to be toxic to humans, but it may interfere with the metabolism of other drugs. The impurity standard for Amiodarone includes Impurity G, which is an analytical impurity, and Impurity HCL, which is an API impurity.</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>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>Lansoprazole impurity H is a metabolite of lansoprazole, a proton pump inhibitor that inhibits the production of stomach acid. Lansoprazole impurity H is used in research and development as an analytical standard to measure lansoprazole concentrations in drug products. It is also used as an impurity standard for pharmacopoeia purposes. Lansoprazole impurity H is not known to be toxic, but it has not been evaluated for carcinogenicity or reproductive toxicity.</p>

<p>Amido methyl meloxicam is a synthetic nonsteroidal anti-inflammatory drug. It is used to relieve inflammation and pain. Amido methyl meloxicam is chemically similar to the naturally occurring substance, meclofenamic acid, but it does not have the same side effects.<br>Amido methyl meloxicam is metabolized in the liver by CYP3A4/5 and then excreted by the kidneys.</p>

<p>Please enquire for more information about 5-Chloro-N-[3-[[(5-chloro-2-thienyl)carbonyl]amino]-2-hydroxypropyl]-N-[4-(3-oxo-4-morpholinyl)phenyl]-2-thiophenecarboxamide including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>Topiramate impurity C is an analytical reference standard, which is primarily sourced from the chemical synthesis of topiramate-related compounds. With its ability to mimic the structural nuances of impurities found within topiramate formulations, it plays a crucial role in the quality control and validation processes within pharmaceutical development.Being essentially a byproduct or variant of the desired active pharmaceutical ingredient (API), Topiramate impurity C is employed in analytical methodologies to ensure the purity and efficacy of topiramate throughout its manufacturing and storage. Its mode of action involves acting as a comparator or calibrant in quantifying and identifying impurity profiles, thereby facilitating the optimization of synthesis pathways and purification methods.The uses and applications of Topiramate impurity C are integral to the comprehensive quality assurance frameworks in place within pharmaceutical laboratories. It ensures regulatory compliance by adhering to guidelines concerning permissible impurity thresholds, ultimately safeguarding patient safety and therapeutic efficacy. Through high-precision techniques like high-performance liquid chromatography (HPLC) and mass spectrometry, scientists can determine the stability, potency, and purity of pharmaceutical products with accuracy and reliability.</p>

<p>The Z-isomer impurity of pitavastatin is a synthetic compound that has been used as an analytical standard and pharmacopoeia reference. The Z-isomer impurity is not found in nature, but is generated by the hydrogenation of the natural product. It has been shown to be metabolized by CYP3A4 and CYP2C9 enzymes, which are the primary enzymes responsible for drug metabolism. This impurity does not have any therapeutic effect on the body, but can be used as a research and development standard for HPLC.</p>

<p>Montelukast Bis-sulfide is a drug product that is custom synthesized with high purity. It has been studied for its metabolism, analytical properties, and natural sources. The metabolite of montelukast bis-sulfide has been extensively researched for pharmacopoeia as well as for drug development. Montelukast bis-sulfide is a synthetic compound that is not found in nature, but it has niche applications in research and development. CAS No.: 1242260-05-4</p>

<p>Alfuzosin EP Impurity F hydrochloride is a drug product that is used as an analytical standard for Alfuzosin hydrochloride. It is a natural, synthetic, and impurity standard that exhibits similar chromatographic properties to the API. The CAS number of this impurity is 19216-68-3. This product has a niche market because it is used in metabolism studies. It also exhibits high purity and pharmacopoeia grade quality.</p>

<p>This isopropyl 2-(3-nitrobenzylidene)acetoacetate is a reaction solution that can be used to produce the antihypertensive drug, methyldopa. The reaction time required for this solution to react is about two hours. This product also contains chloride and calcium antagonist, which are added as catalysts. The rate of this reaction depends on the temperature and concentration of organic solvent. Crotonic acid, dihedral, and the yield of this reaction depend on the purity of reagents. Impurities in this product include isobutyl and methylbenzene, but these are not harmful to human health. This product also contains piperazine and thionyl chloride as impurities.</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>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>

2-[2-(4-Dibenzo[b,f][1,4]thiazepin-11-yl-1-piperazinyl)ethoxy]ethanol N-oxide is a peroxide that is used in pharmaceutical preparations as an antioxidant. It is a white solid that is insoluble in water and has a molecular weight of 168.13. 2-[2-(4-Dibenzo[b,f][1,4]thiazepin-11-yl-1-piperazinyl)ethoxy]ethanol N-oxide has been shown to be effective against the development of cholesterol gallstones and can be used as a prophylactic agent against cardiovascular disease. This compound also inhibits the oxidation of drugs by hydrogen peroxide and other oxidizing agents. 2-[2-(4-Dibenzo[b,f][1,4]thiazepin-11-yl-1-piperazinyl)eth

<p>(6-Hydroxy-2-(4-hydroxyphenyl)-7-[4-(2-piperidin-1-yl-ethoxy)benzoyl]-benzo[b]thien-3-yl]-[4-[2-(1-piperidinyl)ethoxy]phenyl]methano ne) is a synthetic drug product that has been custom synthesized for the purpose of research and development. This compound is not found in nature, but it may be present as a metabolite. The main impurity in this compound is (5,7,8,9,10,11,12)-(6H)-5H-[1]benzopyrano-[2,3:6,7][2]oxathiazine. Metabolism studies have been done on rats and humans to determine how the compound is broken down. It was determined that the liver enzyme CYP3A4 was responsible for the</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>2-Amino-5,6-dichloro-3(4H)-quinazoline acetic acid hydrobromide is a drug product that is Custom synthesized. It has a high purity and analytical quality. Metabolism studies have been conducted on this compound. Natural and synthetic sources are available for this compound. It is found in the Drug Development section of the pharmacopoeia. The CAS number for this compound is 1194434-39-3, and it has an Impurity Standard as well as an HPLC standard.</p>

<p>N-Hydroxy-6-(trifluoromethoxy)-2-benzothiazolamine (NHTB) is a drug that has been shown to have clinical use as an anticonvulsant. NHTB is a metabolite of diazepam, which is used to treat seizures and anxiety. It binds to the GABA receptor and increases the duration of time that the chloride channel remains open, leading to inhibition of neural activity and in turn seizure control. NHTB has been found to be more potent than diazepam and has also been shown to bind to other receptors, such as dopamine receptors.</p>

<p>Enalaprilat benzyl ester is a drug product that is custom synthesized according to the customer's specifications. It is a white or off-white crystalline powder and has a purity of 99%. Enalaprilat benzyl ester is used in the development of drugs, research and development, and analytical studies. It can be used as an impurity standard to test for enalaprilat in pharmaceutical products. It can also be used as a metabolite standard to measure blood levels of enalaprilat.</p>

<p>Aripiprazole dimer is a drug product that is used for analytical purposes. It is an impurity standard for the research and development of drugs. The CAS number for this compound is 1797986-18-5. This compound, which has been synthesized, has not been found in nature and does not occur in pure form. Aripiprazole dimer is an analytical impurity standard and has been shown to be metabolized by CYP3A4. It also exhibits high purity levels and can be used as an API impurity standard in pharmacopoeia guidelines.</p>

<p>Defluoropitavastatin calcium salt is a synthetic, high purity, pharmacopoeia drug product. It is a metabolite of pitavastatin and has been shown to have similar pharmacological activity. Defluoropitavastatin calcium salt has a niche in the analytical industry due to its high purity and stability. It has been used as an impurity standard for HPLC analysis. Defluoropitavastatin calcium salt is not found in nature and can be synthesized with the help of our Custom Synthesis service.</p>

Chlorhexidine diacetate impurity A is a high purity, analytical standard for the detection of chlorhexidine diacetate impurities in drug products. Chlorhexidine diacetate impurity A is a natural metabolite that is produced by the metabolism of chlorhexidine diacetate. It has been shown to be a potential biomarker for assessing the metabolism of chlorhexidine diacetate and has also been shown to have antimicrobial activity against bacteria, fungi and yeast.