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Polyvinylpyrrolidone (PVP), also commonly called polyvidone or povidone, is a water-soluble polymer compound made from the monomer N-vinylpyrrolidone. [1] PVP is available in a range of molecular weights and related viscosities, and can be selected according to the desired application properties.
N-Vinylpyrrolidone (NVP) is an organic compound consisting of a 5-membered lactam ring linked to a (2 carbon) vinyl group. It is a colorless liquid although commercial samples can appear yellowish. It is produced industrially by vinylation of 2-pyrrolidone, i.e. the base-catalyzed reaction with acetylene. [2]
Using the same principle it is used to remove polyphenols in beer production and thus clear beers with stable foam are produced. [2] One such commercial product is called Polyclar. PVPP forms bonds similar to peptidic bonds in protein (especially, like proline residues) and that is why it can precipitate tannins the same way as proteins do. [3]
The drug, suzetrigine, received the FDA's official stamp of approval Thursday to be sold as a 50-milligram prescription pill taken every 12 hours, according to a press release.
February 2, 2025 at 4:30 AM A new opioid-free pain medication was approved by the U.S. Food and Drug Administration (FDA) on Thursday, marking a non-addictive alternative for patients.
Allstate has been sued by the state of Texas, which accused the insurer on Monday of illegally tracking drivers through their cell phones without their consent and using the data to justify ...
2-Pyrrolidone, also known as 2-pyrrolidinone or butyrolactam, is an organic compound consisting of a 5-membered lactam, making it the simplest γ-lactam. It is a colorless liquid that is miscible with water and most common organic solvents.
Its largest deficits were with China, at $279.4 billion, the European Union, at $208.2 billion and Mexico at $152.4 billion. Another target of Trump’s complaints, Canada, had a trade deficit of ...