Padrões Farmacêuticas

N-Acetyl-DL-methionine is an amide of the amino acid methionine and acetyl coenzyme A. It has a number of biological properties including being a precursor to protein synthesis, a regulator of fatty acid metabolism, and an inhibitor of glutamate pyruvate transaminase. It can be found in bacterial strains as well as in human serum. N-Acetyl-DL-methionine is synthesized by the reaction of methylamine with acetyl coenzyme A in the presence of ammonia or other nitrogenous bases. The chemical structure of this compound consists of two nitrogen atoms and an acetyl group bonded to a carbon atom that is attached to a methyl group and another carbon atom that forms part of an amide bond with the amino acid methionine. This molecule has been observed using nmr spectroscopic data to form hydrogen bonds with proteins.

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2'-Hydroxy-3-nitrochalcone is a yellow crystalline solid that has been shown to have an antiviral effect against HIV and herpes simplex virus. The crystal structure of 2'-hydroxy-3-nitrochalcone has been determined using x-ray crystallography. The compound is structurally similar to other antiviral agents, such as acyclovir, valacyclovir, and penciclovir.
2'-Hydroxy-3-nitrochalcone inhibits the viral DNA polymerase by competing with the nucleotide cofactor at the enzyme active site. This leads to a reduction in viral DNA synthesis and an inhibition of cell proliferation.

Amyloid dye; membrane potential reporter

S-Methylisovalerate is a branched fatty acid that is an intermediate in the biosynthesis of valine. It has been isolated from Corynebacterium glutamicum and Brevibacterium sp. S-Methylisovalerate has been identified by gas chromatography/mass spectrometry (GC/MS) as a major component of the volatile organic compounds produced by strains of Corynebacterium glutamicum and Brevibacterium sp. The GC/MS profile of these strains consists mainly of ester compounds, such as methyl ethyl acetate and butyric acid.

2,3',4,4',6-Pentahydroxybenzophenone - 85% is a chemical compound that functions as a hydroxybenzophenone derivative. It is synthesized through organic chemical processes involving aromatic hydroxylation. The compound exhibits specific light-absorbing characteristics, particularly in the ultraviolet (UV) range, making it a valuable tool in scientific studies focusing on photostability and the photophysical properties of materials.

Bromocresol green is a dye that is used in biological assays to measure the kinetics of fluorescence. It is a type of tryptophan-releasing compound that releases a yellowish-green light when it absorbs light at wavelengths between 350 and 450 nm. Bromocresol green has been quantified by measuring the intensity of the fluorescence emission as a function of time. This can be done visually or using an instrument called a fluorometer, which detects changes in light intensity over time. Bromocresol green can be used to detect the presence of amino acid residues in proteins through protonation reactions with their tryptophan residues and subsequent quenching with acetonitrile. The bromocresol green dye is also used in lithographic printing, where it serves as an acceptor for electrons from an arene (aromatic hydrocarbon). This process generates energy for lithography and also provides contrast between regions with different electron densities.

4-(N,N-Diethylamino)cinnamic acid is a dye-sensitized solar cell sensitizer that has been synthesized from thiophene and acrylic acid. This compound is efficient in dye-sensitized solar cells and can be used to produce solar cells with an efficiency of over 10%.

Ursodeoxycholic acid methyl ester is a bile acid that is produced from ursodeoxycholic acid. It is used as a drug to dissolve gallstones and reduce the risk of recurrent gallstones in patients who have had a cholecystectomy. Ursodeoxycholic acid methyl ester also reduces cholesterol levels by preventing its reabsorption in the small intestine and enhancing its excretion in the bile. This agent has been shown to modulate cell proliferation and differentiation, especially in cerebral tissue and muscle cells. Ursodeoxycholic acid methyl ester can be synthesized from ursodeoxycholic acid by saponification with base followed by methylation with methanol. The synthesis of this agent involves an elimination reaction between c1-c3 alcohols, which leads to impurities such as formaldehyde, acetone, glycerol, acetic acid, and butyric acid.

Biotinylation reagent for labeling nucleic acids or proteins.

N4-Acetylcytosine is an inhibitor of serine proteases, glycosidases and nucleosidases. It has been shown to inhibit the replication of a wide range of viruses including HIV, herpes simplex virus type 1, and adenovirus. N4-Acetylcytosine also inhibits the proliferation of cervical cancer cells.

Muscarinic antagonist; bronchodilator

6,7-Dihydroxycoumarin-7-benzyl ether is an antioxidant compound with a variety of uses. It has been shown to have clastogenic effects in in vitro tests. 6,7-Dihydroxycoumarin-7-benzyl ether has also been used as a screening tool for antioxidants and has found use in the fields of medicine and natural sources. The chemical structure of 6,7-dihydroxycoumarin-7-benzyl ether is heterocyclic aromatic rings with two hydroxyl groups at positions 6 and 7 on the coumarin nucleus. This molecule has prooxidant activity and can be described using chemical descriptors such as molecular weight and logP values.

2,2',3,3'-Tetramethylazoxybenzene is a chemical compound that is used as a reaction component in organic synthesis. It is also known as TMAB and has CAS number 19618-11-2. This chemical is useful for the production of pharmaceuticals and other chemicals because it can be used as a versatile building block to create complex compounds with interesting properties. It is also an intermediate or reagent for other chemicals. TMAB has been shown to have high purity and quality and can be used in research experiments.

1-(4-Chlorophenyl)-2-nitropropene is a versatile building block that can be used in the synthesis of a variety of compounds. It is an aromatic compound with a molecular weight of 122.1 and chemical formula CHClNO. It has a melting point of -44°C, boiling point of 166°C, and density at 20°C of 1.11 g/mL. This product has also been shown to be useful as an intermediate or reaction component for the synthesis of polymers, pharmaceuticals, pesticides, and other organic compounds. 1-(4-Chlorophenyl)-2-nitropropene is soluble in water (10 mg/mL) and alcohols (10 mg/mL). This product is classified as not hazardous according to the Globally Harmonized System (GHS) criteria for classification and labeling of chemicals.

Intermediate in the synthesis of Decitabine

4-Nitrophenylacetone is a hypoglycemic agent that is used for the treatment of diabetes mellitus. It has been shown to be effective in vivo and in vitro studies at low concentrations. The mechanism of action is not well understood, but it may have effects on insulin sensitivity and the release of insulin from pancreatic beta cells, as well as an effect on the liver. 4-Nitrophenylacetone has been shown to have organocatalytic properties that allow it to catalyze acylation reactions with acetanilides or amides. This reaction produces iminium ion intermediates that can be hydrolyzed by water to form a variety of products, including carboxylic acids, amides, and nitriles.

3'-Hydroxypterostilbene is a natural compound that is found in blueberries, grapes, and other plants. It has been shown to have antioxidant properties and may help to prevent the growth of cancer cells. 3'-Hydroxypterostilbene has also been shown to inhibit tumor growth by inhibiting autophagy and mitochondrial membrane potential. This compound may also be useful for treating microbial infections due to its ability to inhibit bacterial growth by targeting ribosomes.