Sulfonamides and Derivatives

<p>This is a white crystalline compound that has been shown to be effective against glutamic acid-sensitive L-amino acid decarboxylase. It is used as an intermediate in the synthesis of other pharmaceuticals.</p>

<p>Aceclofenac ethyl ester is a prodrug of diclofenac. It is a non-steroidal anti-inflammatory drug that alleviates the symptoms of pain, stiffness, and swelling. It exerts its effects by inhibiting prostaglandin synthesis in the central nervous system and peripheral tissues. Aceclofenac ethyl ester has minimal systemic absorption when administered orally, which reduces the risk of side effects such as stomach upset and kidney damage. The pharmacopoeia provides an efficient method for preparing this compound by reacting diclofenac with magnesium stearate in a solvent containing an organic amine or alcohol at temperatures below 50°C (122°F). Aceclofenac ethyl ester may contain impurities such as benzyl alcohol, polyvinylpyrrolidone, or magnesium stearate.</p>

Torasemide Impurity E is a drug product that belongs to the group of impurities. It is a natural product and can be found in the environment. Torasemide Impurity E has been shown to inhibit bacterial growth in vitro and also antimicrobial activity against gram-positive bacteria, such as Staphylococcus aureus. Torasemide Impurity E has been shown to have no cytotoxic effects on human erythrocytes.

<p>4-(Acetylamino)-3-bromobenzenesulfonyl chloride is a white crystalline powder that is soluble in water, ethanol and chloroform. It has an analytical standard purity of 99% or greater. This compound can be used for research and development purposes as well as for the synthesis of pharmaceuticals. The impurity profile of 4-(acetylamino)-3-bromobenzenesulfonyl chloride includes 3-acetylbenzenesulfonic acid, sodium acetate, ammonium chloride, sodium sulfite, potassium bromide, potassium iodide, potassium carbonate, and potassium citrate.</p>

<p>Torasemide EP Impurity C is a drug product that is used as an analytical standard in the metabolism studies of torasemide. Torasemide EP Impurity C belongs to the group of metabolites, and it has been shown to have pharmacopoeia standards. Torasemide EP Impurity C can be found in natural products, but also synthesized in laboratories.</p>

<p>3-[4-(2-Pyridylsulfamoyl)phenyl] sulfasalazine is an analytical standard and a metabolite of sulfasalazine. It is used as a reference compound in the analysis of high purity sulfasalazine by HPLC. 3-[4-(2-Pyridylsulfamoyl)phenyl] sulfasalazine is also used as an impurity in the drug product, API, and drug development. The CAS number for 3-[4-(2-Pyridylsulfamoyl)phenyl] sulfasalazine is 1391062-34-2.</p>

<p>Hydrochlorothiazide is a sulfonamide that inhibits the activity of the enzyme, angiotensin-converting enzyme (ACE), which is responsible for converting angiotensin I to the potent vasoconstrictor, angiotensin II. It also has antihypertensive effects by blocking the production of aldosterone, which causes sodium retention and leads to high blood pressure. It is a byproduct in reactions with substances such as valsartan. Hydrochlorothiazide may react chemically with other medicines such as ampicillin and cefaclor.</p>

<p>4-(Diethylboranyl)pyridine is a nucleophilic, anticoagulant drug. It interacts with the electronegative oxygen atoms in the guanine base of dna to form an adduct, which inhibits DNA synthesis. The hexameric cavity of 4-(Diethylboranyl)pyridine contains boron and nitrogen atoms, which are important for its activity. 4-(Diethylboranyl)pyridine also has antibacterial effects against gram-positive bacteria by inhibiting bacterial protein synthesis. This compound is synthetic and can be used in cocrystallized form as a single molecule or in hexameric form.</p>

<p>Aceclofenac is a nonsteroidal anti-inflammatory drug (NSAID) that belongs to the propionic acid derivative group. It is used in the treatment of mild to moderate pain and inflammation, such as arthritis. Aceclofenac is rapidly hydrolyzed by esterases in the small intestine, resulting in the release of aceclofenac acid. Aceclofenac benzyl ester is a chemical intermediate that has been shown to be an efficient method for producing aceclofenac acid. It can be obtained by reacting bromoacetic anhydride with methyl alcohol and then hydrolyzing the product with strong acids. This compound may contain impurities, such as nucleophilic impurities, which can lead to side effects.</p>

<p>4-Hydroxy-N-2-pyridinyl-2H-1,2-benzothiazine-3-carboxamide-1,1dioxide is a drug product that is used as an analytical reference material. It is a white to pale yellow powder that is soluble in water and has a molecular weight of 343.4 g/mol. The compound has been used for the development of drugs with therapeutic potential against cancer, diabetes, and other diseases. The following are some of the impurities that may be found in 4-hydroxy-N-2-pyridinyl-2H--1,2--benzothiazine--3--carboxamide--1,1dioxide: CAS No.: 65897 - 46 - 3 Molecular weight: 343.4 g/mol Melting point: Boiling point: Density: 1.7 g/cm</p>

The N-(4-hydroxyphenyl)propionamide (HPPA) is a synthetic drug that binds to the human liver. It has been shown to be effective in preventing implantation of fertilized eggs, and can be used as a diagnostic agent for determining the presence of HPPA in human liver tissue. HPPA is also used as a diluent for other drugs. The HPPA binds to chromatographic components and can be detected using electrochemical detection, which allows it to be used as a targetable probe for cancer research. HPPA is also used to study iontophoretic transport of ions across reconstituted membranes in vitro.

2-(4-(Benzylamino)-2-ethylbutyl)-5,6-dimethoxy-2,3-dihydroinden-1-one hydrochloride is a drug product used as an analytical standard for HPLC. It is a natural metabolite from the metabolism of lisinopril and other prodrugs. This impurity is found in drugs that are metabolized by cytochrome P450 enzymes including lisinopril, captopril, enalapril and benazepril. The impurity may be present in drugs with a niche market such as captopril and benazepril or drugs with a high purity such as enalapril. 2-(4-(Benzylamino)-2-ethylbutyl)-5,6-dimethoxy-2,3-dihydroinden-1-one hydrochloride is typically synthesized by the reaction of 4-(benzylamino

<p>2- (Diethylboryl)pyridine is a custom synthesis drug product that is used in research and development for the treatment of cancer. 2- (Diethylboryl)pyridine has been shown to be active against various types of cancer cells, including leukemia, breast, prostate, ovarian, gastric and pancreatic cancers. This compound can also be used as an impurity standard for HPLC analysis.</p>

2-(4-Ethylphenyl)-propanoic acid is a supplement that is used to relieve pain and inflammation. It belongs to the group of non-steroidal anti-inflammatory drugs (NSAIDs). This drug has been shown to be efficacious in the treatment of osteoarthritis, rheumatoid arthritis, and bronchitis. 2-(4-Ethylphenyl)-propanoic acid inhibits both prostaglandin synthesis and leukotriene synthesis by inhibiting cyclooxygenase 1, which converts arachidonic acid into prostaglandins, and 5-lipoxygenase, which converts arachidonic acid into leukotrienes. This drug has also been shown to inhibit COX-2 production in human monocytes. The active form of this drug is metabolized through a number of metabolic transformations including hydrolysis by esterases or glucuronidases, oxidation by cytochrome P450 enzymes,

<p>N-Acetyl zonisamide is a drug that is used in the treatment of epilepsy. It has a broad spectrum of activity and has been shown to be effective against seizures caused by both genetic and acquired conditions. N-Acetyl zonisamide's mechanism of action is not fully understood, but it may involve inhibition of carbonic anhydrase, modulation of serotonergic systems, and antagonism at adenosine receptors. Zonisamide also binds to glutamate and dopamine receptors in the brain, which may contribute to its clinical effects.</p>

Methyl 4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide (MTBC) is a drug target that is a carboxylate. MTBC has been shown to have potent inhibition activity against benzothiazine oxidases. MTBC can be used as an inhibitor of enzymes involved in the biosynthesis of benzothiazines and may be useful for the treatment of diseases such as Parkinson's disease and schizophrenia. The inhibition potential of MTBC has been unraveled through its interaction with peroxidases and other oxidases. In vitro studies have shown that MTBC can inhibit the oxidation of low molecular weight compounds by acting as a scavenger for hydrogen peroxide. This drug also exhibits unsymmetrical dehydration to produce methyl 4-(hydroxyamino)-2H-1,2-benzothiazine 1,1-dioxoate (MTBA), which is an

<p>Bromfenac sodium imp-B is an analytical standard that is used in drug development and research to measure the concentration of bromfenac in pharmaceutical products. Bromfenac sodium imp-B is a white to off-white crystalline powder with a melting point of about 230°C. It is soluble in methanol, ethanol, and acetone, but insoluble in water. Bromfenac sodium imp-B can be synthesized from the corresponding bromo acid chloride.</p>

<p>2-[[4-(2-Pyridylsulfamoyl)phenyl]azo]hydroxybenzene is an impurity found in sulfasalazine. It is a metabolite that is formed by the P450 system in the liver. The metabolic process of 2-[[4-(2-Pyridylsulfamoyl)phenyl]azo]hydroxybenzene has been studied in detail and has been shown to be a major contributor to the pharmacokinetic profile of sulfasalazine. This substance also exhibits antimicrobial activity and inhibits the growth of bacteria, fungi, and viruses.</p>

<p>Saccharin is a drug product that consists of saccharin N-isopropyl ester and an impurity standard. Saccharin is a synthetic sweetener that is found in the leaves of the herbaceous perennial S. dulcis, which has been used as a natural sweetener for centuries. Saccharin can be metabolized by humans to form 2-acetic acid and 4-methyl-1,2,3-thiadiazole (MTT) as a byproduct. The metabolite MTT may cause cancer in animals, but this has not been confirmed in humans. The pharmacopoeia specifies the purity of saccharin as 98% or greater. Metabolite standards are also provided for research purposes.</p>

<p>2-[(2,6-Dichlorophenyl)amino]benzeneacetic Acid 2-(carboxymethoxy)-2-oxoethyl ester is a drug product that belongs to the class of Custom synthesis. It is a metabolite of loratadine, an antihistamine drug. The compound is a metabolite of loratadine, which is an antihistamine drug used for the treatment of allergies. It is produced by the oxidation of loratadine by cytochrome P450 enzymes and can be detected in urine at concentrations up to 5 ng/mL. 2-[(2,6-Dichlorophenyl)amino]benzeneacetic Acid 2-(carboxymethoxy)-2-oxoethyl ester has been shown to be effective in inhibiting the growth of bacteria that are resistant to penicillin and erythromycin.</p>

Pyroxasulfone is a pre-emergence herbicide that inhibits long-chain fatty acid production in plants.

Hydroflumethiazide is a thiazide diuretic. It has also shown the activity of anti-hypertensive.

Licogliflozin (LIK066) is an inhibitor of sodium-glucose cotransporter (SGLT1 and SGLT2).

Mefruside is an orally effective diuretic that reduces tubular reabsorption of electrolytes and water, studying edema and hypertension.

Altizide is a thiazide diuretic. It is used to treat oedema and hypertension.

Xipamide (Diurexan) is a sulfonamide-based diuretic with antihypertensive properties. Xipamide selectively inhibits anion exchanger.

<p>3-Chloro-4-hydroxyacetanilide is a chemical compound that belongs to the class of acetanilides. It has long-term toxicity and is used as a drug substance in the production of aniline derivatives. 3-Chloro-4-hydroxyacetanilide has been shown to be carcinogenic in hamsters. The long term exposure to this chemical was shown to cause liver damage and increased incidence of tumours in rats. This drug also contains impurities and traces of chloride, chlorine, and thionyl chloride, which are toxic substances that can cause irritation or burns on contact with skin or eyes.</p>

Glibornuride is a blocker of ATP-sensitive K+ channel(pKi: 5.75).

Brodimoprim is an inhibitor of dihydrofolate reductase(DHFR).

Amtolmetin guacil (ST-679) 抑制前列腺素合成和环氧合酶。 Amtolmetin guacil 具有与托美汀类似的 NSAID 特性，具有额外的镇痛、解热和胃保护特性。

Vaborbactam (RPX7009) is a β-lactamase inhibitor that is often used in conjunction with meropenem to study pneumonia and CRE infections.

Foramsulfuron is a potent ALS inhibitor and herbicide that inhibits plant growth, primarily targeting grass and broadleaf weeds in corn fields.

Bromfenac Related Compound A is a chemical impurity, which is often encountered during the synthesis and formulation of bromfenac, a non-steroidal anti-inflammatory drug (NSAID). This compound arises as a byproduct in the chemical synthetic pathway utilized in the production of bromfenac, necessitating stringent analytical methods to ensure product purity and compliance with pharmaceutical standards.The mode of action for Bromfenac Related Compound A itself is not typically characterized, as it is primarily the parent compound, bromfenac, that is pharmacologically active. Bromfenac works by inhibiting cyclooxygenase enzymes (COX-1 and COX-2) that mediate inflammatory processes. However, the related compound is investigated to understand the synthesis intricacies and to refine processes that limit its formation.Understanding and controlling the levels of Bromfenac Related Compound A is crucial in pharmaceutical applications, as the presence of impurities can affect the efficacy, safety, and overall quality of the drug product. Analytical chemists and pharmaceutical scientists study this compound extensively using chromatographic and spectroscopic techniques to ensure drug safety and compliance with regulatory guidelines.

<p>Tribenuron, a slow acting sulfonylurea herbicide, controls broadleaf weed.</p>