Pharmaceutical Standards

<p>3,3'-Difluorobiphenyl is a liquid crystal composition that has been shown to have anisotropic properties. When 3,3'-difluorobiphenyl is mixed with other halides such as chloro- or bromo-halides, the liquid crystalline phase can be induced by the addition of ethylene. The anisotropic properties of these compositions make them useful in devices where orientation, reorientation and flow are important. 3,3'-Difluorobiphenyl has also been shown to catalyze the conversion of alcohols to esters and phenols.</p>

<p>Isoeugenol methyl ether is a plant-derived natural compound that is used in vitro as an antioxidant. It has been shown to inhibit the activity of enzymes such as hydroxylase, glucuronidase, and cytochrome P450. Isoeugenol methyl ether has also been shown to have anti-inflammatory properties and may be useful for treatment of colorectal adenocarcinoma. The mechanism by which isoeugenol methyl ether inhibits the enzyme activity is not clear but it may be due to its ability to bind reversibly with free enzyme form.</p>

<p>Tetrahydro-1-naphthoic acid is a toxic chemical that is used in the synthesis of various organic compounds. It is an organic acid that has a pungent odor and can cause irritation of the nose and throat. When heated, it evolves toxic fumes of hydrogen chloride gas and phosgene. Tetrahydro-1-naphthoic acid reacts with metal hydroxides to form metal tetrahydro-1-naphthoates, which have useful properties as catalysts in organic reactions. Tetrahydro-1-naphthoic acid has been used as a growth regulator in plants and animals. It binds to DNA at the C–H site, preventing protein synthesis and cell division by inhibiting RNA synthesis.</p>

<p>Tyrosinase protein:<br>Peptide Tyrosinase (Asp371) – HLA-A*0201 (YMDGTMSQV) is a human tyrosinase-derived (369-377) peptide by posttranslational conversion of the sequence YMNGTMSQV. Tyrosinase is an oxidase membrane-bound protein. Tyrosinase play a key role in the melanin synthesis pathway. Tyrosinase is presented on the surface of HLA-A*02:01 melanomas and also expressed in melanocytes. Tyrosinase has been still suggested to be a tumor antigen and might be implicated in improvement of immunotherapeutic strategies such as for efficient anticancer vaccine development.<br>Applications of Peptide Tyrosinase (Asp371) – HLA-A*0201 (YMDGTMSQV):<br>Peptide Tyrosinase (Asp371) – HLA-A*0201 (YMDGTMSQV) is used to stimulate specific cytotoxic T lymphocytes (CTL) in PBMCs and then to analyze CTL response especially the cytokine production by ELISPOT assay. Peptide Tyrosinase (Asp371) – HLA-A*0201 (YMDGTMSQV) is also involved in experimental therapies of metastatic melanoma by allogeneic hematopoietic stem cell transplantation. In fact, cytotoxic T cells were generated from peripherical blood mononuclear cells (PBMCs) of HLA-A*02:01 healthy donors after being stimulated by injection of Asp371 antigen (2). This strategy raises issues which concern the graft versus tumor (GvT) effect and graft versus host disease (GvHD).</p>

<p>(+)-B-Chlorodiisopinocampheylborane is a chiral organoboron reagent that can be used for the enantioselective synthesis of amines. It is prepared from the reaction of chlorodiphenyl borane with (+)-diaminobenzene in hexane. The product can be purified by column chromatography or recrystallization. (+)-B-Chlorodiisopinocampheylborane can also be used in the synthesis of other compounds, such as pyrroles and pantolactones. It is an excellent catalyst for the dehydration of primary amines to give unsymmetrical ketones. This reagent has been shown to be effective in asymmetric hydrogenation reactions, such as the reduction of chiral secondary alcohols, and is also capable of catalyzing aldol reactions.</p>

<p>(-)-cis-Pentazocine is a kappa-opioid receptor agonist that has been used for the treatment of pain, cough, and diarrhea. It is also used to treat withdrawal symptoms in those who are addicted to other narcotic drugs. The drug binds to the κ-opioid receptors and activates G protein coupled receptors. When this occurs, it inhibits the release of neurotransmitters from nerve cells in the brain, which reduces pain and causes sedation. Pentazocine can cause side effects such as dizziness, constipation, nausea, vomiting, headache, blurred vision, anxiety and depression. These side effects are more common with high doses or when pentazocine is taken with other drugs that have similar effects.</p>

<p>Isomethadone hydrochloride is the drug substance in a solid oral dosage form. It is an active substance that can be used to treat inflammatory diseases and target tissue. Isomethadone hydrochloride is a type of natural polymer with a metal ion as its active ingredient. The absorption mechanism for this drug is not known, but it appears to work by causing dysfunction in the membranes of cells. Isomethadone hydrochloride has been shown to cause addiction in animals and humans, and may have potential toxic effects on liver function. Symptoms of Isomethadone hydrochloride overdose include: <br>-Nausea and vomiting<br>-Constipation<br>-Loss of appetite<br>-Headache<br>-Drowsiness <br>-Confusion <br>-Muscle spasms <br>-Tremors and seizures</p>

<p>2-(2-Sulfoethyl)pseudourea is a substance that is found in the body as an intermediate product of the urea cycle. It is also used as a protective agent for beet sugar and other food products. 2-(2-Sulfoethyl)pseudourea has been shown to be effective against malonic acid, tricine, and arginine. The reaction with malonic acid yields 2-sulfoethylmalonic acid, which can then be oxidized by tricine to yield 2-sulfoethylglyoxal. This substance also reacts with arginine to produce 2-sulfoethylaminoadipic semialdehyde.</p>

<p>2,4,6-Trichloro-5-nitropyrimidine is a purine derivative that inhibits the cell proliferation of cancer cells. It has been shown to inhibit the activity of kinases and to induce apoptosis in human cancer cells in vitro. This drug also has antiproliferative potential against erythrocytes and is being investigated as a treatment for renal disease. 2,4,6-Trichloro-5-nitropyrimidine shows inhibitory effects on the phosphorylation of roscovitine by ATP and may be used to treat patients with glomerulonephritis. 2,4,6-Trichloro-5-nitropyrimidine can be synthesized from 2,4,6-trichloropyrimidinethiol and nitric acid according to the following equation: CClNO + HNO → CClNOH + NO 2 Cl + 3 HNO</p>

<p>Please enquire for more information about Diphenylsulfone-3,3'-disulfonic Acid Disodium Salt including the price, delivery time and more detailed product information at the technical inquiry form on this page</p>

<p>(aR)-a-[[[2-(4-Nitrophenyl)ethyl]amino]methyl]benzenemethanol is a chiral, carbonyl compound that has been used in the synthesis of mirabegron. It is synthesized by reacting an amide with a hydrochloric acid salt. The product yield of (aR)-a-[[[2-(4-Nitrophenyl)ethyl]amino]methyl]benzenemethanol is high and it does not react with aluminium or amide impurities. This compound can be used for the industrial synthesis of mirabegron, which is a drug for the treatment of urinary incontinence. The reduction reaction and hydrolysis reactions are both important to this process.</p>

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<p>Tetrahydro-a-(1-naphthalenylmethyl)-2-furanpropanoic Acid 2-(Diethylamino)ethyl Ester is a fatty acid analog that has antimicrobial properties. It is used in the treatment of bone cancer, and can be used to diagnose and treat other diseases such as glomerular filtration rate, receptor binding, and malonic acid. Tetrahydro-a-(1-naphthalenylmethyl)-2-furanpropanoic Acid 2-(Diethylamino)ethyl Ester binds to receptors on cells, which leads to an increase in the amount of monoamine neurotransmitters released by the cells.</p>

<p>Sodium cinnamate is an organic compound that is a derivative of 4-hydroxycinnamic acid. It forms sodium salts with water vapor, which are soluble in water. Sodium cinnamate has been shown to have genotoxic activity, and may be used as a potential anticancer drug. Sodium cinnamate also binds to toll-like receptors on the surface of cells, which activate inflammatory signaling pathways. This compound also inhibits enzymes involved in infectious diseases such as influenza A virus and herpes simplex virus type 1 replication. Caffeic acids, chlorogenic acids, and pge2 levels were shown to be increased after treatment with sodium cinnamate.</p>

<p>Ilexsaponin B2 is a triterpenoid saponin, which is a bioactive compound extracted from plants in the Ilex genus, such as Ilex pubescens. These saponins are characterized by their glycosidic linkages to sapogenins, typically influencing membrane permeability and exhibiting diverse biological activities.</p>

<p>1,2-Epoxy-3-(4-nitrophenoxy)propane is an epoxide that is a reactive intermediate that participates in a number of reactions, including the formation of disulfide bonds. It has been shown to have genotoxic effects and to be toxic to polymorphonuclear leucocytes. The compound can also inhibit detoxification enzymes, which may make it useful as a biomarker for environmental exposure to xenobiotics. 1,2-Epoxy-3-(4-nitrophenoxy)propane has also been shown to be a potential anti-cancer agent in gene therapy studies. This compound inhibits energy metabolism by inhibiting the enzyme glyceraldehyde 3 phosphate dehydrogenase (GAPDH).</p>

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<p>Benzoyl ecgonine isopropyl ester is an analytical toxicology procedure that is used to identify the presence of cocaine in biological samples. The sample preparation involves homogenizing the sample, extracting it with solvents, and evaporating the solvent. Benzoyl ecgonine isopropyl ester is then incubated at room temperature for 15 minutes before adding a solution of hydrochloric acid and potassium dichromate. A color change from yellow to orange indicates the presence of cocaine. This test can be performed on either whole blood or plasma samples and can also be used to detect other drugs such as amphetamines, barbiturates, benzodiazepines, and opiates.</p>