APIs for research and impurities

Desisobutyl-N-butyl bortezomib is a drug product that has been custom synthesized for the purpose of research and development. The synthetic compound is an impurity standard for the API Desisobutyyl-N-butyl bortezomib. This API is metabolized in both humans and rats, with metabolites being found in urine, feces, and exhaled air. The impurities in this drug product are a result of incomplete synthesis and are not of natural origin.

Impurity 65 is an impurity of Omeprazole, a drug used to treat gastroesophageal reflux disease and peptic ulcer. Impurity 65 is a metabolite of Omeprazole that can be found in the drug product at a concentration up to 0.5%. It has been shown to have anti-inflammatory effects and can be used as a research and development standard for HPLC analysis. Impurity 65 is also used as an impurity standard in the USP pharmacopoeia and other pharmacopoeias around the world.

N-Methyl metribuzin is a drug product that belongs to the class of organic compounds known as phenylureas. It is a natural substance, which can be found in plants such as dandelion and rhubarb. Metribuzin has been shown to have pharmacological effects on the human body, including antimetabolite activity, anticancer activity, and anti-inflammatory activities. Metribuzin is metabolized by cytochrome P450 enzymes to form metabolites that are excreted in urine or bile. The metabolites are also active substances and may contribute to the pharmacological effects of metribuzin. Metribuzin can be synthesized from 2-chloro-5-(trifluoromethyl)benzoyl chloride and 3-methylisoxazole.
Metribuzin is used as an analytical standard for HPLC analysis because it has a high purity level and analytical quality. It is also used in

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

1-(2-Furoyl)piperazine is a potent inhibitor of tyrosinase, an enzyme involved in the production of melanin. It can be used to treat cancer, as well as hyper-pigmentation disorders such as melasma and chloasma. 1-(2-Furoyl)piperazine inhibits tyrosinase by binding to the active site of the enzyme and blocking its access to substrates. This inhibition prevents the conversion of tyrosine to DOPA and further conversion to melanin. 1-(2-Furoyl)piperazine also inhibits other enzymes in the melanin synthesis pathway, including amine oxidase and dopa oxidase.

L-Threo-hex-2-enaric acid 1,4-lactone 6-methyl ester is a research and development compound. It is a metabolite of the drug product L-Threo-hex-2-enaric acid 1,4-lactone 6-(2,6,6)-trimethyl ester. L-Threo-hex-2-enaric acid 1,4-lactone 6-(2,6,6)-trimethyl ester (LTA) is an impurity in the drug product that is present as a result of its synthesis. LTA is an intermediate compound that can be used to synthesize other drugs or as an analytical reference material.

Ivermectin is a drug that belongs to the anthelmintic class of drugs. It is active against roundworms, pinworms, and hookworms. Ivermectin has been shown to have an effect on autoimmune diseases such as multiple sclerosis, systemic lupus erythematosus, and rheumatoid arthritis by inhibiting the inflammatory response. The drug has been shown to inhibit matrix metalloproteinases in vitro and in vivo. The matrix effect is seen when the drug binds to proteins in the blood plasma or tissue matrix, where it inhibits their activity. This inhibition prevents the degradation of collagen, which can lead to tissue damage or renal failure. Ivermectin also binds to striatal dopamine receptors and inhibits dry weight gain in animals infected with Ostertagia ostertagi. Ivermectin is given orally in a single dose of 200 micrograms/kg body weight for treatment of intestinal worms (roundworm,

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(E)-4-Alloxycarboxyl tamoxifen is a synthetic metabolite of tamoxifen. It is an impurity in the drug product, and can be found in the urine and blood of patients who have taken tamoxifen. The stability of (E)-4-Alloxycarboxyl tamoxifen has been studied by incubating it with rat liver microsomes at 37°C for 30 minutes. Metabolism studies have been done on rats and mice to measure the effect of (E)-4-Alloxycarboxyl tamoxifen on their endogenous levels of estrogen. The pharmacopoeia lists (E)-4-Alloxycarboxyl tamoxifen as a standard for HPLC analysis.

Regadenoson Impurity 28 is an analytical standard and research and development impurity. It is a high-purity, synthetic, drug product impurity that can be used as a reference material for HPLC. This drug impurity is also available in a custom synthesis service. Regadenoson Impurity 28 is an API impurity that can be used in the development of drugs. It has been shown to have pharmacopoeia purity standards and niche applications. Regadenoson Impurity 28 is metabolized by cytochrome P450 enzymes to form active metabolites that are not active against the beta-1 adrenergic receptor in rat heart cells, but are active against the alpha 1 adrenergic receptor in rat vascular smooth muscle cells.

Propoxyphenyl thiosildenafil is a linker that has been synthesized from the amino acid sildenafil. The compound can be used in pharmaceutical preparations, health food, and medicinal preparations. It is also used as an additive to prepare the desired drug. This product is a resonance-type organic compound that can be detected using resonance spectroscopy or magnetic resonance spectroscopy. The compound has a molecular weight of 348.08 g/mol and a boiling point of 440°C at 760 mmHg pressure.

Pyrimido[1,2-a]purin-10(1H)-one is a cytotoxic drug used in the treatment of various cancers. It is an analog of purine nucleoside and has been shown to inhibit mitochondrial functions and nuclear DNA synthesis, as well as to induce malondialdehyde production. Pyrimido[1,2-a]purin-10(1H)-one also inhibits protein synthesis by methyltransferase inhibition. The detection sensitivity of pyrimido[1,2-a]purin-10(1H)-one has been demonstrated using titration calorimetry on sephadex g-100 columns. This compound is not active against E. coli K12 but is active against other bacteria including Staphylococcus aureus isolates that are resistant to methicillin.

Ethyl 6-[4-[(5-chloro-1-oxopentyl)amino]phenyl]-4,5,6,7-tetrahydro-1-(4-methoxyphenyl)-7-oxo-1H-pyrazolo[3,4-c]pyridine-3-carboxylate is a chemical compound with various applications. It is soluble in methanol and has been found to interact with peptidoglycan, cellulose, and other substances. This compound has shown potential anticoagulation properties and has been studied for its effects on blonanserin, etoricoxib, 27-hydroxycholesterol, tenofovir, proton, famotidine, dimethyl fumarate, calpain, dimethyl sulfoxide, and reactive agents. Further research is needed to fully understand the potential applications of this compound and its interactions with different substances.

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.

Elsinochrome A is a drug product that has not been approved for human use. It belongs to the class of drugs called natural products and has not been synthesized. Elsinochrome A is a metabolite of erythromycin, which is produced by the fungus Elsinoë sp. The chemical structure of this natural product was determined using spectral analysis, and it was found to be similar to the antibiotic erythromycin. Elsinochrome A has shown promising results in pharmacological studies as a potential drug candidate for tuberculosis treatment because it inhibits bacterial growth by binding to DNA-dependent RNA polymerase, thereby preventing transcription and replication.

N,5-Dibenzyl-5-hydroxy-indole-3-glyoxylamide is a drug product that can be used as an analytical reference standard and an impurity standard. It is used in the development of drugs, including synthetic intermediates and metabolites. N,5-Dibenzyl-5-hydroxy-indole-3-glyoxylamide is a natural metabolite. It has been shown to have antihistamine activity and to inhibit prostaglandin synthesis.

Enantiomer of Perindopril t-Butylamine

Ornidazole-hydroxy is a drug product that is manufactured using HPLC. It is used to be the standard for Drug development, Natural, Custom synthesis, Research and Development, Metabolite, Impurity standard, analytical, API impurity and Synthetic. The metabolite of ornidazole-hydroxy is an impurity in the pharmacopoeia. Ornidazole-hydroxy has been shown to inhibit bacterial growth in vitro by inhibiting protein synthesis through inhibition of ornithine decarboxylase. Ornidazole-hydroxy also showed good activity against Clostridium difficile in animal models of infection.

Palbociclib Impurity F is a high purity synthetic intermediate for the production of Palbociclib. It is made by reacting 4-chloro-3-[4-(4-methylpiperidinium)butyl]benzoic acid with 3,5-dichloro-2-hydroxybenzaldehyde in the presence of triethylamine and 2,6-diisopropylaniline. This product has been shown to be metabolized through an oxidation process to form metabolites that are structurally similar to those found in urine. The chemical structure of this impurity can be found in CAS No. 851067-56-6.

1-b-D-Ribofuranosyl-1,2,4-triazole-3-carboxylic acid (1bRT) is an amide that inhibits the growth of viruses by inhibiting the viral enzyme thiosemicarbazide. It has been shown to be active against specific viruses such as HIV and retroviruses. 1bRT is used to treat lung diseases caused by viruses, including bronchiolitis, pneumonia, and pulmonary fibrosis. It also has antibacterial properties. Studies have shown that 1bRT reduces the number of bacteria in body fluids and helps to prevent respiratory infections and other bacterial infections in people with weakened immune systems due to AIDS or cancer treatment.

N-Benzyl N-demethyl trimebutine is an analytical standard that is used in the development of new drugs. It is a synthetic compound and has not been found in any natural sources. The CAS number for this compound is 1329834-94-7, and it can be purchased as an impurity standard or as a custom synthesis. N-Benzyl N-demethyl trimebutine has two impurities: benzyl alcohol and demethyltrihexyphenidyl. This compound can be used as a pharmacopoeia or HPLC standard.

Genistein 4’-β-D-glucuronide is an isoflavonoid that is a natural product of soy and red clover, with estrogenic properties. It has been shown to have the ability to bind to estrogen receptors and inhibit the growth of breast cancer cells. Genistein 4’-β-D-glucuronide has been shown to inhibit the production of estrone sulfate in human breast cells, which may be due to its ability to act as an estrogen receptor antagonist. The isoflavonoid genistein also binds to and inhibits the activity of DNA topoisomerase II enzymes in human breast cells.

Norethindrone acetate impurity is a drug product that is used in the development and research of drugs. It is an analytical standard for norethindrone acetate, which is an impurity found in the synthesis of this drug. Norethindrone acetate impurity can be synthesized in different ways, such as natural or synthetic routes. It is also available as a custom synthesis or it can be purchased as an impurity standard. This compound's CAS number is 1175129-26-6 and it has a purity level of 99%.

Roxithromycin impurity I is a natural metabolite of roxithromycin. The substance has been synthesized in order to serve as an analytical impurity standard for HPLC. Roxithromycin impurity 1 is also a metabolite of roxithromycin, which has been shown to produce pharmacological effects similar to those seen with the parent compound. Roxithromycin impurity I is not an API, but has been developed as a HPLC analytical impurity standard and will be used for metabolism studies.

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

Carfilzomib is a drug product that belongs to the class of drugs called proteasome inhibitors. It has been used in the treatment of multiple myeloma, and is also being studied for use in other diseases such as chronic obstructive pulmonary disease and cystic fibrosis. Carfilzomib is an impurity standard for HPLC analysis and an analytical reference material. It is also used as a pharmacopoeia reference material. Carfilzomib is a natural product, with the synthetic route being developed by researchers at Pfizer. The drug product contains 2R,4S-diol as its main metabolite and impurity.

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.

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Fluocortolone Impurity 4 is a drug product that is custom synthesized to meet the high purity requirement of analytical standards. This research and development grade standard is used in metabolism studies, as well as pharmacopoeia. Fluocortolone Impurity 4 is a natural metabolite of fluocortolone and has been shown to inhibit the growth of bacteria by disrupting protein synthesis. It can be found in the urine, feces, and plasma of humans. Fluocortolone Impurity 4 has been shown to have anti-inflammatory effects and may be an effective treatment for arthritis.

Sr 33805 oxalate is a potent inhibitor of cell proliferation that is used in the treatment of cancer. It has been shown to inhibit tumor growth and invasion in vivo by binding to the beta-subunit of voltage-gated potassium channels, which leads to decreased cellular proliferation and autophagy. Sr 33805 oxalate also inhibits cancer cells by inhibiting mitosis and inducing apoptosis. This agent has cytotoxic effects on brain cells, with an IC50 value of 0.1 μM in vitro against rat cerebellar neurons. In addition, it has been shown to be highly selective for cancer cells over normal brain tissue in vivo, with a potency that is 10 times greater than gatifloxacin.

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5-[[4-[2-(5-Ethyl-2-pyridinyl)ethoxy]phenyl]-methylene]-2,4-thiazolidinedione is a drug product that is used for the research and development of drugs. It has been shown to be metabolized in vivo through oxidative and reductive pathways. 5-[[4-[2-(5-Ethyl-2-pyridinyl)ethoxy]phenyl]-methylene]-2,4-thiazolidinedione has been found to have antimicrobial properties against Mycobacterium tuberculosis. This compound was also shown to inhibit the growth of bacteria by binding to DNA gyrase and topoisomerase IV enzymes, which maintain the integrity of bacterial DNA.

Erlotinib-3-vinyl hydrochloride is a drug product that is used in the treatment of cancer, including non-small cell lung cancer. It is an impurity standard for HPLC and analytical testing. Erlotinib-3-vinyl hydrochloride is also used as an API impurity and metabolite in metabolism studies. Erlotinib-3-vinyl hydrochloride can be synthesized from 4-(4'-vinylphenoxy)butanal, which is a natural compound obtained from plants like apple trees. This synthetic process can be done by the reduction of 4-(4'-vinylphenoxy)butanal with sodium borohydride, followed by reaction with vinyl chloride. The compound is also found as a metabolite in humans after oral administration of erlotinib, which has been shown to inhibit protein synthesis and DNA synthesis.

Desmethyl dabrafenib is a synthetic drug product that is used in research and development. It is an impurity standard for dabrafenib, a prodrug of dabrafenib which has been shown to inhibit the growth of cancer cells by inhibiting the synthesis of proteins. Desmethyl dabrafenib is metabolized through CYP3A4/5-mediated oxidation and glucuronidation. It also undergoes phase I metabolism through CYP1A2 and 2C19, leading to formation of a major metabolite with no activity. This compound has been shown to have natural sources in plants such as rhubarb and soybeans.

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.

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

Tenofovir disoproxil is the disoproxil fumarate salt of tenofovir. It is a nucleoside reverse transcriptase inhibitor that has been shown to be effective in the treatment of chronic hepatitis B virus (HBV) in combination with emtricitabine and as a single agent in the treatment of HIV-1 infection. Tenofovir disoproxil is available as tablets, capsules, or oral solution. The drug has been shown to cause an increase in serum creatinine levels, which may be due to inhibition of renal tubular secretion of creatinine by tenofovir. This drug should not be used with alafenamide and tenofovir because it can lead to kidney failure and death.

Pantoprazole sulfone N-oxide is a prodrug that is converted to the active form pantoprazole in the stomach where it inhibits gastric acid secretion. Pantoprazole sulfone N-oxide has been shown to be genotoxic, and can cause polyvinyl chloride to degrade when stored together. Reconstituted solution of this drug should be used within 24 hours after reconstitution, as the chemical stability of this drug decreases rapidly. Validation studies have been conducted on different analytical methods for determining pantoprazole concentrations in reconstituted solutions, and these methods have been harmonized with those published by the United States Pharmacopeia (USP). The pump inhibitor activity of pantoprazole sulfone N-oxide has been demonstrated in dogs, and it is also useful for treating acid reflux disease in humans. Pantoprazole sulfone N-oxide is unstable at high temperatures (>25°C), so should not be refrigerated or

CPI 0610 is a medicinal compound that acts as a potent inhibitor of protein phosphorylation. It has been shown to inhibit the cell cycle and promote apoptosis in Chinese hamster ovary cells. CPI 0610 is an effective inhibitor of kinase activity in cancer cells, leading to decreased tumor growth and increased survival rates. In preclinical studies, CPI 0610 has demonstrated efficacy against a wide range of cancers, including breast, prostate, and lung cancer. This inhibitor has also been shown to be effective in human cancer cell lines, making it a promising candidate for future cancer therapies.

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.

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5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5]undecane is an analytical standard used in HPLC and GC. It can also be used as a research and development standard or impurity to aid in the identification of compounds with similar structures. 5-(4-Methoxyphenyl)-3-methyl-1-oxa-3-azaspiro[5.5]undecane has a purity of 99% and a melting point of 80°C. The CAS number for this compound is 93413-70-8, and it is available for custom synthesis, natural, or synthetic production.

Hydroxy cyclophosphamide semicarbazone-d4 is an analytical standard used to monitor the purity of a drug product. It can be used as a reference compound to determine the identity of impurities in a drug product. Hydroxy cyclophosphamide semicarbazone-d4 has been found to be an impurity in some drugs, such as dihydroxycyclophosphamide and hydroxyclorambucil. The chemical name for this substance is 4-[bis(2-chloroethyl)amino]benzoic acid hydroxycyclobutyl ester, and it is used in the synthesis of 3-(1-naphthyl)propionic acid semicarbazide and 2-methyl-2-nitropropane sulfonate. Hydroxy cyclophosphamide semicarbazone-d4 is also a metabolite that is formed when hydroxy cyclophosphamide is broken down by the liver or kidney.

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.

N-[1-[3-(4-Ethoxyphenyl)-3,4-dihydro-4-oxopyrido[2,3-d]pyrimidin-2-yl]ethyl]-4-fluoro-N-(3-pyridinylmethyl)-3-(trifluoromethyl)-benz eneacetamide is a drug product that is used in the development of new drugs. It is an analytical standard for HPLC and was created as a natural metabolite from the antibiotic Cefazolin. N-[1-[3-(4-Ethoxyphenyl)-3,4-dihydro-4-oxopyrido[2,3-d]pyrimidin-2-yl]ethyl]-4 -fluoro -N-(3 -pyridinylmethyl) - 3 (trifluoromethyl) - benzeneacetic acid has been shown to inhibit

Cis-Tadalafil is a potent inhibitor of phosphodiesterase 5, which is used to treat erectile dysfunction (ED) and primary pulmonary hypertension (PPH). It works by increasing blood flow to the penis, allowing men with ED to achieve and maintain an erection. Cis-Tadalafil is also used to treat symptoms of prostatic hyperplasia (enlarged prostate) in men. This drug has been shown to be effective in treating PPH by reducing pulmonary arterial pressure and improving exercise capacity. Cis-Tadalafil belongs to the carboline class of drugs and is a phosphodiesterase 5 inhibitor that selectively inhibits cGMP-specific phosphodiesterase type 5 (PDE5). This drug has been shown to be highly effective in treating both ED and PPH with minimal side effects.

Acarbose Impurity E is an impurity found in acarbose. It is a natural, API impurity and is a synthetic impurity standard. Acarbose Impurity E has been used in drug development research and development, as well as in the HPLC analysis of acarbose to generate a pharmacopoeia-grade purity standard.

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Linagliptin impurity G is an impurity in the drug product Linagliptin. It is a natural substance and its CAS number is 668270-11-9. Impurity G can be synthesized from L-phenylalanine and cyclohexane carboxaldehyde in a two step process. The first step involves the reaction of L-phenylalanine with cyclohexane carboxaldehyde to yield methylcyclohexanecarboxylate, which then undergoes hydrolysis to give phenylcyclohexanol. In the second step, phenylcyclohexanol reacts with hydrochloric acid to produce phenylcyclohexanone, which is then oxidized with hydrogen peroxide to yield impurity G. Impurity G can also be found in the pharmacopoeia as a high purity HPLC standard for linagliptin.

N-Hydroxymethyl Sumatriptan is an analytical standard and a research and development impurity. It is also used as an API impurity in drug product manufacturing. N-Hydroxymethyl Sumatriptan can be synthesized by reacting the parent drug with hydroxyl radicals, which is a process that yields no side products. N-Hydroxymethyl Sumatriptan can be found in the following pharmacopoeia: United States Pharmacopoeia (USP) 11>, European Pharmacopoeia (EP), Japanese Pharmacopoeia (JP)13>, British Pharmacopoeia (BP), and Chinese Pharmacopiae (CPC).

Roflumilast impurity A is a metabolite of roflumilast. It is a drug product that is used as an analytical standard for the determination of roflumilast in HPLC analysis. Roflumilast impurity A is not natural and is synthetic. It has been shown to be a substrate for CYP1A2, CYP2C8, CYP2C9, and CYP3A4 enzymes. Studies have shown that it may be involved in the metabolism of roflumilast through hydroxylation and deamination.

Empagliflozin S-furanose is a Custom synthesis drug product. It is an analytical standard with CAS No. 1620758-32-8, and it is used in research and development of new drugs. Empagliflozin S-furanose has been found to be a metabolite of empagliflozin, a drug that is used to treat type 2 diabetes mellitus. It is also used as an impurity standard for HPLC analysis of empagliflozin because it does not have any biological activity.

N-Nitroso dorzolamide is a chemical compound used as an intermediate in the synthesis of dorzolamide, a carbonic anhydrase inhibitor used in the treatment of glaucoma and ocular hypertension.

Ciprofloxacin ep impurity C is a synthetic compound. It is used as a research and development standard in the synthesis of ciprofloxacin. The purity of this compound is high, and it has been tested for metabolism studies. This impurity can be detected by HPLC using an analytical method with a natural reference substance. This impurity has not been evaluated for pharmacopoeia or CAS number.

Desfluoro ezetimibe is a synthetic cholesterol-lowering drug that inhibits intestinal cholesterol absorption. It is chemically synthesized, and the process includes the introduction of fluorine at the 3-position of the C-ring. Desfluoro ezetimibe is not metabolized in humans, but it may be subject to oxidative degradation. The product is also subject to oxidation by light and air, which may result in formation of impurities. The drug substance has been validated as well as its isomers and efficiencies in mass spectrometry detection.

(3S,4R)-Tofacitinib is a rhombic and paramagnetic compound with a Curie point of approximately 10.6°C. It is soluble in nonpolar solvents such as benzene and toluene. (3S,4R)-Tofacitinib has been shown to have magnetic properties that are dependent on the temperature and the frequency of the applied magnetic field. The paramagnetic resonance spectra were observed at 18°C and 32°C, while the paramagnetic resonance spectrum was observed at -2°C. The octahedral interactions are likely due to the presence of six different types of iron ions in the crystal structure.

N-Benzyl albuterol is a drug product that is custom synthesized to be of high purity with an analytical standard. It is used in research and development, pharmaceutical development, and as a pharmacopoeia or analytical standard. N-Benzyl albuterol has been found to be a metabolite of the drug product Albuterol Sulfate. It is also used in metabolism studies and natural product research. The CAS number for this compound is 24085-03-8.

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Simvastatin acid is the active form of simvastatin, a drug used to lower blood cholesterol levels. Simvastatin acid inhibits HMG-CoA reductase, the enzyme that converts HMG-CoA to mevalonate. This conversion is a rate-limiting step in the synthesis of cholesterol and other lipids. Simvastatin acid binds to polymerase chain and drug transporter proteins, which leads to cell lysis. The concentration–time curve for simvastatin acid is linear and the half-life is approximately 12 hours. When simvastatin acid is administered with drugs that are potent inducers of CYP3A4 or UGT1A1 enzymes, there may be an increased risk for drug interactions. Simvastatin acid has shown no significant human pharmacokinetic interactions with food or grapefruit juice at doses up to 200 mg/day. There are limited data on the pharmacokinetics of simvastatin

N-Desacetyl thiocolchicoside is a white crystalline powder that is soluble in water, methanol and acetone. It has a molecular weight of 320.2 and an empirical formula of C6H14O5. N-Desacetyl thiocolchicoside is used as an analytical standard for HPLC analysis, as a Research and Development (R&D) material for drug development, and as an impurity standard for the manufacture of pharmaceutical products. This compound has been shown to be a metabolite of thiocolchicoside and structurally similar to the drug product chitinase.

Pramipexole EP Impurity C is a synthetic impurity that is used as an impurity standard in the manufacture of Pramipexole EP. It is also used as a research and development tool for drug product, custom synthesis, CAS No. 1973461-14-1, and analytical studies. This compound has been shown to be a metabolite of Pramipexole EP and may have pharmacological properties. Pramipexole EP Impurity C has been found to inhibit the growth of certain bacteria, such as methicillin-resistant Staphylococcus aureus (MRSA) isolates.

Sacubitril Impurity 2 is a drug product that is an analytical impurity in Sacubitril. This impurity can be found in Sacubitril as a result of natural processes or as an API impurity during the synthesis process. Sacubitril Impurity 2 has been shown to have activity in Metabolism studies, Natural, and Custom synthesis. It has been shown to be a Synthetic impurity standard and HPLC standard. Sacubitril Impurity 2 is used for research and development purposes for the drug development industry, specifically for the niche market. It is also used as an analytical standard for pharmacopoeia methods.

3-Dimethylaminopropyl-2-benzylaminobenzoate hydrochloride is a versatile compound with various characteristics and applications. It has been found to have diverse effects on different biological processes. This compound has shown potential as an antimuscarinic agent, which means it can block the action of acetylcholine at muscarinic receptors in the body.

Tofacitinib dihydro impurity is a research and development impurity standard for the synthesis of Tofacitinib. It is a custom synthesis with high purity, pharmacopoeia grade, and synthetic. This product is also used in drug development for metabolism studies and analytical applications.

Dicyclopropylamine hydrochloride is a tyrosine kinase inhibitor that blocks the activity of jak2. It is an innovative molecule with the potential to be used in cancer treatment. Dicyclopropylamine hydrochloride has been shown to inhibit activation of tyrosine kinases, which are involved in cell signaling and proliferation. Dicyclopropylamine hydrochloride also has anti-inflammatory properties, which may be due to its ability to inhibit prostaglandin synthesis. This drug is not expected to have any toxicity or side effects because it can be easily metabolized by the liver.br>br> Dicyclopropylamine hydrochloride is a white solid with a melting point of 175°C. It has no detectable odor, and it is soluble in water and ethanol. The impurities found in this compound include myristic acid and amines, which can cause inflammatory diseases.br>br> D

Piperacilloic acid is a synthetic compound that exhibits antibacterial activity. It has been shown to be effective against human pathogens, including urothelial carcinoma and human serum. Piperacilloic acid binds to the amino acids lysine and arginine in bacterial proteins and inhibits protein synthesis by inhibiting the function of enzymes that require these amino acids for their activity. The potency of piperacillin is low, but it is activated by hydrolysis in the acidic environment of the stomach or intestinal tract. Piperacilloic acid also has potential as a contraceptive agent because it may inhibit transcriptional regulation of genes that are involved in sperm production.

Ivermectin impurity I is an analytical standard that is used for pharmacopoeia and custom synthesis. It is a natural metabolite of the drug Ivermectin, which has been shown to have anti-inflammatory properties in mice. Ivermectin impurity I binds to nicotinic acetylcholine receptors, leading to muscle paralysis and death. This compound is found in high purity for research and development purposes.

2-(2-Amino-5-bromobenzoyl)pyridine (2ABBP) is a chemical compound with the molecular formula C10H7BrN3. It is a glucuronide conjugate of 2-amino-5-bromobenzoic acid and has been used as an immunological reagent in the form of a monoclonal antibody. 2ABBP binds to dryopteris, which is a plant species that contains polyphenols called pteridines. 2ABBP has been shown to have anti-inflammatory properties in rat liver microsomes and cell culture experiments. The mechanism of action may involve inhibition of cyclooxygenase enzymes, which are involved in prostaglandin synthesis. 2ABBP also binds to human serum albumin and chaperones, proteins that bind other proteins or small molecules. The biological activity of 2ABBP may be due to its ability to form coval

Terbinafine is a drug used in the treatment of onychomycosis, tinea versicolor and dandruff. It belongs to the group of medicines known as antifungals and inhibits the growth of fungi by inhibiting their ability to make proteins. Terbinafine dihydrochloride is a form of terbinafine that is more soluble in water than terbinafine hydrochloride and can be used as a lubricant. Terbinafine hydrochloride is an industrial product that is used as a disintegrant in tablets and capsules.

(S)-Rabeprazole sodium is an anticancer drug that acts as a kinase inhibitor. It is an analog of Rabeprazole and has been shown to inhibit the growth of cancer cells in vitro and in vivo. (S)-Rabeprazole sodium inhibits the activity of kinases, which are enzymes that play a key role in cell signaling pathways. This inhibition leads to apoptosis, or programmed cell death, in cancer cells. (S)-Rabeprazole sodium has been tested against various types of cancer, including Chinese hamster ovary cells and tumor xenografts in mice. It has also been shown to inhibit elastin degradation, which is important for preventing metastasis of cancer cells. (S)-Rabeprazole sodium may be a promising candidate for the development of new anticancer drugs that target specific kinases and proteins involved in cancer cell growth and survival.

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Chlorthalidone impurity E is an analytical standard for the HPLC analysis of chlorthalidone in pharmaceutical drug products and is a metabolite of chlorthalidone. Chlorthalidone impurity E is an API impurity that can be found in the synthesis of chlorthalidone, and it has been detected as a minor component in certain drug products. It is important to have an accurate specification for this compound, since it can affect the pharmacological properties of the drug product. The purity level of this compound must be at least 98% or greater to ensure that there are no contaminants present. This compound is also a metabolite of chlorthalidone and is used as a pharmacopoeia reference substance for testing equipment calibration.END>

Semaglutide impurity.

Etofenamate impurity

Oxytocin impurity

Triphosphorylated form of an antiviral nucleoside analog with activity against zoonotic feline infectious peritonitis virus (FIPV) and severe acute respiratory syndrome (SARS) virus from Coronaviridae family. The compound is the biologically active form of the GS 441524 prodrug and being triphosphorylated, it competes with natural nucleoside triphosphates in cells and interferes with viral RNA synthesis.  Made to order.

Atorvastatin is a drug that belongs to the class of statins. It is used for the treatment of high cholesterol levels and other related diseases, such as cardiovascular disease. Atorvastatin calcium trihydrate EP Impurity G is an impurity that may be present in atorvastatin calcium trihydrate. This compound has not been found to have any pharmacological activity.