Chemical Structure / July 17, 2018 / Reina Huffman
Pyridine is a basic heterocyclic organic compound with the chemical formula C5H5N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom. The pyridine ring occurs in many important compounds, including azines and the vitamins niacin and pyridoxine.
Propylene glycol (IUPAC name: propane-1,2-diol) is a synthetic organic compound with the chemical formula C3H8O2. It is a viscous, colorless liquid which is nearly odorless but possesses a faintly sweet taste. Chemically it is classed as a diol and is miscible with a broad range of solvents, including water, acetone, and chloroform.
Cyclohexanone (also known as Oxocyclohexane, pimelic ketone, cyclohexyl ketone, and CYC) is a clear oily liquid that has a colourless to light yellow tinge and a pungent odour. It has the formula C6H10O and is slightly soluble in water and is completely miscible with common solvents. It occurs naturally in crude oils and is also produced synthetically, in large quantities, as it is a key intermediate in the production of nylon.
Berberine is a cationic alkaloid that was first isolated in 1917 from goldenseal (Hydrastis canadensis), a North American herb of the buttercup family. It is found in the roots, rhizomes, stems, and bark of many other plants, including Berberisspp. (worldwide), yellowroot (Southwestern United States), and the Amur cork tree (East Asia). It usually exists as the chloride, but T. Kametani and co-workers reported the total synthesis as the iodide in 1969.
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