APIs for research and impurities

Rac-N-Demethylpromethazine hydrochloride is a racemic mixture of promethazine. It is an analytical reference material that is offered as a high purity API impurity standard, which can be used for HPLC analysis. Rac-N-Demethylpromethazine hydrochloride is also offered as a drug development and drug product impurity standard for the manufacture of drugs. The racemic mixture of promethazine has been shown to inhibit the growth of bacteria by competitive inhibition of bacterial enzymes. Rac-N-Demethylpromethazine hydrochloride acts on bacterial DNA gyrase and topoisomerase IV, which maintain the integrity of bacterial DNA by inhibiting the production of proteins vital for cell division. Rac-N-Demethylpromethazine hydrochloride has also been shown to have antiinflammatory properties in animal studies.

Terbutaline Impurity D is a synthetic drug with the CAS number 94109-61-2. This product has been developed as an impurity standard for Terbutaline, which is a drug product that has been approved by the United States Pharmacopoeia (USP). Terbutaline Impurity D can be used to study the metabolism of Terbutaline in animals. It is also used to develop new drugs by chemists and other scientists.

This compound is a research and development impurity standard. It is synthesized in accordance with the pharmacopoeia, and it is an API impurity. It is also used as a metabolite standard for drug development and metabolism studies. This compound has been tested in HPLC standards.

Remdesivir impurity 10 is a synthetic chemical compound that has been synthesized for research and development. It is an impurity standard of remdesivir, which is not present in any drug product. The purity of this product is high, and it can be used as a pharmacopoeia or drug development standard. It can also be used as an analytical standard to measure the concentration of metabolites in animal studies or metabolism studies.

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.

Rotigotine Impurity 7 is an impurity that has been identified in the synthesis of rotigotine. Rotigotine Impurity 7 is a synthetic compound with a CAS number of 1229620-82-9. It is intended for use as an analytical standard and as a component in the manufacture of rotigotine, which is indicated for the management of Parkinson's disease. This product has not been tested in animals or humans, and it should be handled with care.

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>
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Clarithromycin EP Impurity K is an impurity standard for Clarithromycin in the form of a crystalline white powder. It is a synthetic compound which has been used as a drug product and as an analytical standard. This compound can be synthesized from erythromycin A, but it is not active against bacteria. Clarithromycin EP Impurity K has been shown to have metabolite properties in animals and humans, including metabolism studies with HPLC standards.

N-Nitroso-N-methyl-4-aminobutyric acid (NMBA) is a solid with a low melting point which has been identified as a potentially carcinogenic component of both tobacco and tobacco smoke. NMBA is also one of a number of nitrosamine impurities which have been found to be present in angiotensin II receptor blocker (ARB) drugs used to treat high blood pressure.

10,11-Dihydroxy-d10 Carbamazepine is a drug product that is used as an analytical reference standard. It is natural and synthetic impurity in the API (active pharmaceutical ingredient) Carbamazepine. The CAS number for 10,11-Dihydroxy-d10 Carbamazepine is 513-81-5. This compound has been synthesized by custom synthesis and is an impurity standard for HPLC analysis of carbamazepine. 10,11-Dihydroxy-d10 Carbamazepine is also a research and development chemical for the drug development industry. It has been classified as a niche chemical due to its high purity and pharmacopoeia grade.

Olmesartan medoxomil is a prodrug that is hydrolyzed to olmesartan, its active form. It is a member of the angiotensin II receptor antagonists and it is used for the treatment of hypertension and heart failure. Olmesartan medoxomil reduces the risk of cardiovascular events in patients with resistant hypertension or heart failure. The drug binds to the angiotensin II type 1 receptor, thereby blocking the binding of angiotensin II to this receptor. This prevents activation of downstream signaling pathways, including phospholipase C, protein kinase C, and mitogen-activated protein kinases. Olmesartan medoxomil also blocks the formation of new blood vessels and vascular remodeling in animal models.

N-(5-Aminopentyl) methotrexate amide is a fluorescent probe that is used to study the transport of drugs across cell membranes. It binds to the plasma membrane of cells and can be visualized with a fluorescence microscope. N-(5-Aminopentyl) methotrexate amide has been shown to bind to leukemia cells in murine leukemia models. It has a high affinity for drug-resistant cells, which makes it useful for studying drug resistance mechanisms. This probe can be used at nanomolar concentrations for imaging studies, as well as for measuring the uptake of drugs into cancer cells by flow cytometry.

6-Methylene progesterone acetate is a polymerase chain inhibitor that inhibits the synthesis of viral and cellular DNA. It was first isolated from infected cells in tissue culture and has been shown to inhibit the growth of a wide range of viruses, including rabies, herpes simplex, herpes zoster, cytomegalovirus, varicella-zoster virus, and vesicular stomatitis virus. 6MPAA also blocks the production of gene products in mammalian cells by preventing RNA synthesis. This drug can be used as an antiviral agent for treatment of enteritis caused by rotavirus infection. 6MPAA binds to gp2 protein on the surface of virus particles and prevents this protein from interacting with polyclonal antibodies or monoclonal antibodies to prevent antibody response.

Natriuretic hormone; induces uterine contraction and lactation

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.

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Urolithin M5 is a drug product that has undergone custom synthesis, and is high in purity. It has CAS No. 91485-02-8, analytical data, metabolism studies, and drug development. Urolithin M5 is natural, with a metabolite pharmacopoeia and niche. There are impurities in this substance that are of synthetic origin and have an analytical HPLC standard. This substance has been researched and developed for use as an Impurity Standard.

Olanzapine Ketolactam is a drug product that can be custom synthesized. It has a purity of at least 98% and is identified by its CAS number, 1017241-34-7. The metabolite of Olanzapine ketolactam is olanzapine N-oxide, which can be found in the urine of patients who have taken Olanzapine ketolactam. Metabolism studies have been conducted on this drug product to determine how it may affect the body. This drug product is also used in natural or synthetic drug development, pharmacopoeia, and analytical research.

Tirzepatide Impurity

N-[[2'-(2H-Tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-Valine is a synthetic, nonstandardized HPLC standard that is used in drug development and metabolism studies. It is not available as a natural product, but can be made synthetically. N-[[2'-(2H-Tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-Valine has the CAS No. 676129-92-3 and impurity standards are available for this compound.

Rabeprazole is a proton pump inhibitor that suppresses the production of stomach acid by blocking the H+/K+ ATPase enzyme. It is used for the treatment of gastroesophageal reflux disease, peptic ulcers, and Zollinger-Ellison syndrome. Rabeprazole has been shown to be more effective than omeprazole in reducing gastric acid secretion in two-way crossover studies. Rabeprazole also has been shown to inhibit the growth of antibiotic-resistant strains of bacteria. In addition, rabeprazole binds to metal ions like iron and copper, which may affect its pharmacokinetics and efficacy. This drug is currently being investigated as an analytical method for determination of proton pump inhibitors in human serum and urine samples by electrochemical impedance spectroscopy (EIS).

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Olsalazine sodium impurity D is a natural substance that is present as an impurity in the drug Olsalazine sodium. It is used as an analytical standard for Olsalazine sodium and its metabolites, which are involved in drug development. The purity of this substance can be customized by our research and development team. This product has CAS number 93964-55-7 and is available at a reasonable price.

Naltrexone impurity A is a synthetic, high-purity drug product that is used as an analytical reference standard in the development and manufacture of pharmaceuticals. It is also used as a pharmacopoeia reference standard and to study metabolism. Naltrexone impurity A has been shown to be a major metabolite of naltrexone and can be found in the urine at concentrations of 1-2% following oral administration. This impurity is not active when given orally, but may have activity if injected intravenously or intramuscularly.

O3-Desethyl apremilast is an experimental drug product that belongs to the class of drug products. This drug product has been shown to be a natural, synthetic and analytical impurity in API. It is also an impurity standard for HPLC analysis. O3-Desethyl apremilast can be used in research and development, as well as niche applications in the pharmaceutical industry.

4-(2-Methoxyethyl)phenol is a synthetic compound that is an antihypertensive agent. It is used to reduce high blood pressure, which may be due to its ability to block the action of angiotensin II, a potent vasoconstrictive hormone, by binding with its receptor. 4-(2-Methoxyethyl)phenol has been shown to be more potent than metoprolol succinate and less toxic than hydroxylated compounds such as propranolol in pharmacokinetic studies. In addition, 4-(2-Methoxyethyl)phenol has been found to have a low risk of congestive heart failure. The industrial process for this substance involves the reaction of hydrochloric acid with phenol in the presence of a catalyst such as aluminium chloride or zinc chloride.

Trazodone is a psychotropic agent that belongs to the group of antidepressants. Trazodone hydrochloride impurity C is a metabolite of trazodone and can be used as an impurity standard for the drug product in pharmacopoeia. Trazodone hydrochloride impurity C has been found in urine, blood, and saliva after administration of trazodone. It is also found in the plasma of pregnant women who are taking trazodone to treat depression or anxiety during pregnancy.
Trazodone hydrochloride impurity C is synthesized using a custom synthesis with high purity. It has been shown to have a niche market as an analytical reference material for HPLC standards.

N-[[2'-(2H-Tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine methyl ester is a synthetic compound used as an HPLC standard. It is also used in the development of new drugs to study the metabolism of these drugs and their metabolites. N-[[2'-(2H-Tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-L-valine methyl ester can be synthesized from 2-[(2H)-tetrazol-5-yl][1,1'-biphenyl]-4-(phenylamino)propanenitrile and L -valine methyl ester. It is soluble in ethyl acetate, chloroform and methanol. N-[2'(2H)-tetrazol-[5' (phenylamino)

6-Epi pravastatin sodium salt is a synthetic compound with the same molecular formula and chemical structure as the natural product. It has been used in pharmacological studies, drug development, and research. 6-Epi pravastatin sodium salt is a metabolite of pravastatin.

Olsalazine sodium impurity C is a metabolite of olsalazine sodium. It is a natural product that can be custom synthesized for research and development purposes. Olsalazine sodium impurity C has been shown to have pharmacopoeia-grade purity and can be used as an analytical standard or an API impurity in drug products. The CAS number for this substance is 259151-72-9.

Di-2-thienylmethanone is a pyrazole with an activation energy of about 10.5 kcal/mol. It has been found to be toxic and can cause cell lysis. This molecule has been used in the synthesis of a number of drugs, including thiopental, a barbiturate that is used as an anaesthetic. Di-2-thienylmethanone is also the precursor for the synthesis of fluoroquinolones, which are potent antibacterial agents. The Friedel-Crafts reaction is one way this molecule is synthesized, and it involves the addition of an alkyl halide to an unsaturated double bond. This reaction is named after Charles Friedel and James Crafts who first discovered it in 1877.

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Terbinafine is an antifungal agent that belongs to the family of medicines. It is used to treat fungal infections of the skin, nails and scalp. Terbinafine can also be used to treat other types of fungal infections, such as tinea corporis (ringworm), tinea cruris (jock itch), tinea pedis (athlete's foot) and tinea capitis (scalp ringworm). Terbinafine dimer impurity dihydrochloride is a by-product of terbinafine hydrochloride that has been shown to have industrial applications as a dispersant or lubricant in industries such as papermaking.

Rifaximin Impurity 1 is a synthetic impurity standard for Rifaximin. It is a metabolite of rifaximin and is used in research and development to test the purity of drug products. It has a molecular weight of 314.2 g/mol and molecular formula C9H16N4O4S. This product is not manufactured by or for the original equipment manufacturer (OEM).

2-[[[(4-Methoxypropoxy)-3-methyl-2-pyridinyl]methyl]sulfonyl]-1H-benzimidazole is a protonated sulfonamide that is used as an analytical method to detect the presence of other drugs in human liver tissue. It has been shown to inhibit the activity of cytochrome P450 3A4 (CYP3A4), one of the enzymes responsible for metabolizing many drugs. Bromoenol lactone and powder diffraction spectrum are two additional analytical methods that can be used to detect 2-[([(4-methoxypropoxy)-3-methyl-2-pyridinyl]methyl]sulfonyl]-1H-benzimidazole.

N-(2-Amino-4-thiazolyl)acetyl mirabegron is a research chemical that belongs to the category of drugs. It is custom synthesized and purified through analytical methods. N-(2-Amino-4-thiazolyl)acetyl mirabegron has been studied for its metabolism in vivo, including its pharmacokinetics and pharmacodynamics. This drug product is a metabolite of mirabegron, an agent used for the treatment of overactive bladder syndrome (OAB). The metabolite is also present in urine and plasma samples.

Betamethasone EP Impurity G is an analytical impurity that is found in the drug product Betamethasone EP. It is also a natural, synthetic, and custom synthesis impurity that has been manufactured to be an impurity standard. Betamethasone EP Impurity G has a CAS number of 85700-75-0 and is a niche HPLC standard for research and development purposes. This high purity impurity may be synthesized from other chemical compounds or created synthetically.

3-(N-Phenyl-N-methyl)aminoacrolein is a hydrophobic compound that has been shown to reversibly bind to serum albumin. This binding leads to a decrease in the lipid content of lipoproteins and a decrease in the rate of their metabolism. These effects are mediated by hydrophobic interactions with the hydrophobic regions of serum albumin. 3-(N-Phenyl-N-methyl)aminoacrolein also interacts with human serum albumin, which is involved in lipid transport and metabolism, and can be used as a contrast agent for X-ray diffraction studies.

Tetracosanoic acid is a drug product that is used in the development of drugs and as an analytical standard. Tetracosanoic acid is a metabolite of tetracosanol and has been shown to inhibit the metabolism of cyclooxygenase-2 (COX-2) by inhibiting prostaglandin synthesis. Tetracosanoic acid also has anti-inflammatory properties, which may be due to its ability to inhibit COX-2 activity. This product can be used as an impurity standard for API's with a purity level of 99% or greater. Tetracosanoic acid is also used for research on metabolic pathways and as an analytical standard for HPLC analysis.

Alloc bromoridane is a drug product that contains the active ingredient bromoridane. Bromoridane is a natural metabolite of the plant alkaloid berberine and has been shown to inhibit the activity of bacterial type IIA topoisomerases from both Gram-positive and Gram-negative bacteria. The chemical name for Alloc bromoridane is 2-[2-(4-bromobenzoyl)phenyl]dihydropyrimidine, and it has CAS number 117348-70-6. Bromoridane is an impurity standard in pharmacopoeias such as USP XXII, European Pharmacopoeia 6th Edition, Japanese Pharmacopoeia 2006, and Chinese Pharmacopoeia 2005. Alloc bromoridane is used in research and development for pharmaceuticals or as an analytical reference material.

4-[2-[[(6R,7R)-7-Amino-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]thio]-4-thiazolyl]-1-methylpyridinium Chloride Monohydrochloride is a drug product under development for the treatment of bacterial infections. 4-[2-[(6R,7R)-7Amino--2carboxy8oxo5thia1azabicyclo[4.2.0]oct2en3yl]thio]-4thiazolyl]-1methylpyridinium Chloride Monohydrochloride is an impurity in the API Methicillin (CAS No. 40082764). Impurities are not necessarily undesirable and may have substantial therapeutic value or provide a desired

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

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.

N-[2-[(8R)-1,6,7,8-Tetrahydro-6-oxo-2H-indeno[5,4-b]furan-8-yl]ethyl]propanamide is a synthetic compound that has not been identified in nature. It is used for analytical purposes and as an impurity standard in the synthesis of other compounds. N-[2-[(8R)-1,6,7,8-Tetrahydro-6-oxo-2H-indeno[5,4-b]furan-8-yl]ethyl]propanamide is the parent drug product of CAS No. 896736–22–4. The impurities found in this product are N-[2-(3′-(3″S″)-3′′S″′) (3″R″) -1H -indenyl](methyl)amine hydrochloride and N-[

Amoxicillin EP Impurity L is an impurity standard for amoxicillin. It is a synthetic compound that is used to ensure the quality of amoxicillin drug products. Amoxicillin EP Impurity L has been shown to be 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. This impurity has also been shown to have anti-inflammatory properties and may be due to its inhibition of prostaglandin synthesis.

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Terbutaline impurity b is a pharmacopoeia grade drug product that is used as an analytical standard. It is also used in the synthesis of terbutaline, which is a drug that has been approved by the FDA to treat bronchospasm, asthma and other lung disorders. Terbutaline impurity b may be found in natural sources or may be synthesized. This impurity can be custom synthesized using HPLC-grade reagents and can be obtained at high purity levels.

Remdesivir impurity 5 is a metabolite that is generated in the body following metabolism and excretion of remdesivir. It has been shown to be present in urine, plasma, and cerebrospinal fluid following administration of remdesivir. Remdesivir impurity 5 binds to the active site of HIV reverse transcriptase with a Kd value of 0.5 nM. The chemical name for this compound is (5R)-3-[[3-[(2S,4R)-2-amino-4-(2-methylpropyl)piperidin-1-yl]-1H-indol-6-yl]carbonyl]benzoic acid methyl ester.

2-(4-Formylphenyl)propionic acid is a racemic mixture of 2-formylphenylacetic acid and 4-formylphenylacetic acid. This compound is used in the treatment of bacterial infections and inflammation. It is an organic solution that can be injected, administered orally, or applied topically. The 2-(4-formylphenyl)propionic acid has been shown to have anti-inflammatory properties, but also has side effects such as skin irritation when it is applied topically. This drug can also cause nausea, vomiting, and diarrhea when administered orally.

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

9-Epimitomycin B is a water-soluble, alkoxy-substituted amino compound that is used medicinally. It has antibacterial activity and has been shown to be effective against Gram-positive bacteria such as Staphylococcus aureus, Streptococcus pyogenes, and Enterococcus faecalis. 9-Epimitomycin B inhibits the growth of these bacteria by binding to their ribosomes and inhibiting protein synthesis. The carbon atoms in 9-epimitomycin B are linked to an alkoxy group at one end, which causes it to have a higher affinity for bacterial ribosomes than human ribosomes. 9-Epimitomycin B also binds to mitomycin C, which may be responsible for its antimetabolite properties.

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

m-Glimepiride impurity is a chemical substance that belongs to the sulfonylurea family. It is used as a pharmaceutical agent for the treatment of type 2 diabetes. The impurity was found in crystalline form and analyzed by HPLC-DAD and HPLC-MS. The purity of m-Glimepiride impurity was determined to be 99%. It is not known whether this impurity has any biological activity.

2-Phenylbutyramide is a drug that acts as a potent, nonselective agonist at adenosine A3 receptors. It has been shown to have therapeutic potential for the treatment of bowel disease and cardiac diseases. 2-Phenylbutyramide binds to the adenosine A3 receptor and triggers an increase in intracellular calcium levels, which leads to smooth muscle relaxation in the gut. This drug also has been found to be effective against autoimmune diseases and organometallic toxicity. It is not active against bacterial infections such as hepatitis or inflammatory bowel disease.

(S)-3-((S)-5-Oxopyrrolidine-2-carbonyl)thiazolidine-4-carboxylic acid is a synthetic compound that is used as an impurity standard for HPLC. It is also used in drug development and research and development of pharmaceuticals. This product was made through custom synthesis and is not natural.

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.

Isopropyl (1S)-(+)-10-camphorsulfate is an analytical standard that is used in the preparation of aqueous solutions with a purity of at least 99.5%. It can also be used as a reference material for the determination of impurities in drug products and API preparations. Isopropyl (1S)-(+)-10-camphorsulfate has been shown to inhibit bacterial growth, and may have anti-inflammatory properties. It has also been shown to bind to DNA and form adducts with guanine residues, which may lead to mutagenicity.

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

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.

Sunitinib impurity G is a research and development impurity that is found in the process of synthesizing sunitinib. Sunitinib impurity G is an analytical standard that is soluble in methanol and is suitable for HPLC analysis. It has been shown to have high purity, excellent stability, and a low level of toxicity.

2-[[[3-Methyl-4-(methylthio)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole is a synthetic, nonsteroidal anti-inflammatory drug. It is soluble in methanol and ethanol, not soluble in water. The impurity standard of 2-[[[3-Methyl-4-(methylthio)-2-pyridinyl]methyl]sulfinyl]-1H-benzimidazole is 3-[2-[(3,4,5-trimethoxyphenyl)amino]-1H-benzimidazolium methyl sulfate].

3-(2-Fluorophenyl) ezetimibe is an impurity of the drug product Ezetimibe. It is a metabolite that has been shown to have analytical and research and development applications. 3-(2-Fluorophenyl) ezetimibe is soluble in organic solvents such as acetone, ethanol, or chloroform and insoluble in water. The impurity standard for 3-(2-Fluorophenyl) ezetimibe conforms to the USP/NF monograph for Ezetimibe Impurities A, B, C, D, E and F. The CAS number for this impurity is 1798008-25-9.

Rotigotine Impurity 18 is a drug product that is an analytical standard for impurities. It is a synthetic impurity that is not found in natural sources. Rotigotine Impurity 18 has been used as a pharmacopoeia reference in the development of rotigotine, which is used to treat Parkinson's disease. This synthetic impurity has been extensively studied for its metabolism and toxicity properties.

Tolterodine S-enantiomer is a drug product that belongs to the class of prodrugs. It is metabolized in vivo to the active form, tolterodine. Tolterodine S-enantiomer has been shown to have a natural origin and can be found in plants and animals. Metabolism studies of this compound have been conducted in human liver microsomes, with the major metabolite being tolterodine. Tolterodine S-enantiomer also has pharmacopoeia standards, including an analytical standard and an impurity standard, as well as an HPLC standard for research and development purposes.

Methyl mycophenolate impurity E is a reactive, propargylamine-containing, monosodium salt with immunosuppressive properties. It is used in the treatment of cancer by inhibiting the production of white blood cells, which are needed to fight infection. Methyl mycophenolate impurity E has shown antitumor activity and can be used for the treatment of some types of cancer. It is metabolized in vivo to methyl mycophenolate and inhibits protein synthesis by alkylating DNA.

1,4-Bis[(tetrahydro-2-furanyl)carbonyl]-piperazine is a synthetic drug product. It is used as an analytical standard to help elucidate the metabolic pathway of drugs and their metabolites. This compound has been shown to be metabolized by various enzymes including CYP450, glutathione reductase, and esterases. It can also be synthesized from 1,4-dihydropyridine and 2-furancarboxaldehyde. The physical properties of 1,4-bis[(tetrahydro-2-furanyl)carbonyl]-piperazine are: white powder; mp 178°C; IR max 1710 cm−1 (CO); UV max 221 nm (EtOH). The impurities in this product are: 1-(2H)-Quinolinone (CAS No. 2467-94-1) which may have a maximum concentration

Benzquinamide hydrochloride is a cardiac diagnostic agent that is used in the diagnosis of coronary artery disease. It is also used to assess the viability of heart tissue and to evaluate the effectiveness of anti-arrhythmic agents. Benzquinamide hydrochloride has been shown to be an effective treatment for geriatric patients with cancer and psychiatric patients. This drug binds fatty acids and can be used as a tracer for cardiac perfusion studies. In addition, benzquinamide hydrochloride can reduce the frequency shift in heart rate on electrocardiogram, which may be caused by antidepressants. The drug is insoluble in water, so it cannot be detected in wastewater samples.

Ajoene is a natural compound that has been shown to have antimicrobial properties, as well as an ability to inhibit the growth of tumor cells. Ajoene is also a potent inhibitor of dextran sulfate proteoglycan synthesis in vitro and has been shown to produce a hypoglycemic effect in vivo. Ajoene has been shown to be active against Gram-positive bacteria and fungi and may have potential applications for the treatment of infectious diseases. Further research is needed to determine whether ajoene may be used as an antioxidant or neuroprotective agent.

Oxybutynin EP impurity A is a metabolite of oxybutynin, an antispasmodic drug. It has been shown to have immunomodulatory effects in a rat model of adjuvant arthritis. Oxybutynin EP impurity A is the major metabolite of oxybutynin and has been shown to be pharmacologically active in humans.

1-[1-(4-Methoxyphenyl)-2-(methylamino)ethyl]-cyclohexanol hydrochloride is a drug product that is not yet approved for use in humans. It is an impurity found in the drug cyclosporine, which is used to treat psoriasis and other skin conditions. 1-[1-(4-Methoxyphenyl)-2-(methylamino)ethyl]-cyclohexanol hydrochloride has been shown to be inactive in the metabolism studies of rats and dogs. This impurity was detected by HPLC with UV detection at 254 nm, but it did not show any significant absorption at 280 nm. The purity of this compound was determined to be 97% by NMR analysis and HPLC.

N9-Des(4-acetoxy-3-(acetoxymethyl)but-1-yl) N7-[4-acetoxy-3-(acetoxymethyl)but-1-yl] famciclovir is an analytical standard that is used for drug development and as an impurity in the production of famciclovir. It has a purity of 99.0% and a melting point of 176°C. The CAS number for this compound is 131266-15-4, and it can be found in the pharmacopoeia under its synonym, acetyl 9'''-desoxyfavipirin. This chemical has been shown to have antiviral activity against herpes simplex virus type 1 (HSV1), but not against HSV2 or cytomegalovirus (CMV).

Remdesivir impurity 3 HCl is a drug product that is a metabolite of Remdesivir. It has been shown to be a natural, synthetic and research and development impurity standard for HPLC analysis. CAS No.: 2096981-79-0

17-o-(Acetyl-d3)-6-methylprednisolone is a drug product that belongs to the group of corticosteroids. It is used for the treatment of inflammatory conditions and autoimmune diseases. This API is used as an impurity standard in analytical methods such as HPLC, and it can be synthesized from natural sources or synthetically. 17-o-(Acetyl-d3)-6-methylprednisolone can also be used in R&D for the development of drugs targeting niche markets, such as those with high purity requirements.

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.

Binospirone hydrochloride is a drug product that is used in the treatment of depression. It belongs to the class of antidepressants and has been shown to be effective against major depressive disorder (MDD). Binospirone hydrochloride is metabolized by cytochrome P450 enzymes into two metabolites: 3-hydroxybinospirone and 2,3-dihydroxybinospirone. The natural form of binospirone hydrochloride is synthesized from tyrosine and phenylalanine. It is also found as an impurity in other pharmaceuticals, such as clomipramine, amitriptyline, and fluoxetine. It has been shown that this compound binds to the serotonin transporter (SERT) at high affinity. This binding inhibits the reuptake of serotonin from synapses, leading to increased extracellular concentrations of serotonin.

Please enquire for more information about N-Carboxylate-6-hydroxy melatonin ethyl ester including the price, delivery time and more detailed product information at the technical inquiry form on this page

N-(2-Hydroxyethyl)-P,P-bisaziridinyl thiophosphamide (HEPBTP) is a metabolite of the drug product. HEPBTP is synthesized from the parent compound by hydrolysis and oxidation reactions. This metabolite has been characterized using HPLC and analytical methods, including mass spectrometry. It is also included in the pharmacopoeia as an impurity standard for quality control.

Benzathine ampicillin is a penicillin antibiotic that belongs to the group of β-lactam antibiotics. It is used as an analytical reference standard in the pharmaceutical industry, and is also used as a high purity API impurity. Benzathine ampicillin has been shown to be metabolized by liver enzymes into penicillin G and 6-aminopenicillanic acid. The pharmacopoeia requires that benzathine ampicillin be at least 98% pure for its use in drug products.

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

6-O-Desmethyl moxonidine is a drug product that is a metabolite of the parent compound, moxonidine. It has been shown to be an impurity in the API (active pharmaceutical ingredient) and is used as an analytical standard for HPLC. 6-O-Desmethyl moxonidine is synthetically prepared and can be found in natural sources, such as plants or animals. The metabolism studies indicate that the substance is excreted unchanged in urine following oral administration and undergoes extensive hydrolysis in liver microsomes to yield 4-hydroxy-3-(3-hydroxymethylpiperidinopropyl) piperidine, which is then oxidized to 3-(4-hydroxypiperidinopropyl)-1H-1,2,4-triazole. This product may cause skin irritation.

Loperamide N-oxide is an analog of loperamide, which is commonly used as an anti-diarrheal medication. It has been shown to have potential anti-cancer properties by inducing apoptosis in cancer cells. Loperamide N-oxide has also been detected in urine samples from Chinese individuals, indicating its potential use as a biomarker for cancer diagnosis. This compound has been found to inhibit trypsin-like kinases, which are enzymes involved in cell division and proliferation. In addition, loperamide N-oxide has been shown to inhibit the growth of tumor cells and may have potential as a therapeutic agent for cancer treatment. However, it should be noted that rifampicin and other inhibitors can reduce the effectiveness of loperamide N-oxide against cancer cells. Further research is needed to fully understand the potential benefits and limitations of this compound.