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benzoic acid |
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benzoic acid (bĕnzō`ĭk), C6H5CO2H, crystalline solid organic acid that melts at 122°C; and boils at 249°C;. It is the simplest aromatic carboxylic acid (see aryl group aryl group (âr`ĭl), in chemistry, group of atoms derived from benzene or from a benzene derivative by removing one hydrogen that is ..... Click the link for more information. and carboxyl group carboxyl group (kärbŏk`sĭl) ..... Click the link for more information. ). In addition to being synthesized from a variety of organic compounds (e.g., benzyl alcohol, benzaldehyde, toluene, and phthalic acid), it may be obtained from resins, notably gum benzoin benzoin (bĕn`zoin, –zōĭn) or benzoinum ..... Click the link for more information. . It is used largely for making its salts and esters, most notably sodium benzoate, which is widely used as a preservative in foods and beverages and as a mild antiseptic in mouthwashes and toothpastes. |
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| Glyceryl tribenzoate and pentaerythrityl tetrabenzoate, and neopentyl glycol dibenzoate are typical of the benzoic acid esters. For example, in snapdragons, one particular methyltransferase enzyme adds a methyl group (a central carbon hub bonded to three hydrogen atoms) to benzoic acid, producing methyl benzoate. She is allergic to casein, MSG, benzoic acid, sulphites, and peanuts. |
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benzoic acid
