Tannic acid

English name Tannic acid Alias tannic acid; tannic acid; gallic acid chemical formula C76H52O46 molecular weight 1701.20 CAS accession number 1401-55-4 EINECS accession number 215-753-2 melting point 218°C [3] water soluble 250 g/L (20 °C) [1] Appearance pale yellow to light brown amorphous powder or loose glossy flake or sponge solid [3] Flash point 199 °C [3] Application mordant; Ore flotation agent; Conversion coating; Food additives; Synergist; Deodorant Safety Description S22 S26 S36 S24/25 S36/S37/S39 [4] Risk symbols Xi, Xn [1] Risk description R40 R62 R63 R68 R36/37/38 [4] Function use As an astringent, it can precipitate proteins, and can form insoluble complexes with alkaloids, terpenes, and heavy metals. Mainly used for local, its 11%~20% ointment is used for exudative ulcer, scald, acne, acne, eczema, etc. Its 15%~20% glycerin solution is used for stomatitis, tonsillitis and pharyngitis, etc. For detoxification, when the detoxification of morphine, persons of the year, digitalis, lead, silver, copper, zinc, etc., can use its solution to gastric lavage, has now been replaced with other antidote; for colonography, in barium sulfate enema Add 0.25~0.5% enema to the agent to clean the colon and facilitate visualization. Citric acid can inhibit the activity of snake venom protein and have a strong detoxification effect on cobras and other toxins (it can also be used for wound cleaning when snake bites). Bacteria in the oral cavity secrete glycosyltransferases, promote the synthesis of sucrose and inositol, and bacteria adhere to the surface of teeth. Persimmon powder tannins can prevent the growth of bacteria, inhibit the activity of glycosyltransferases and the synthesis of glycosides, thereby reducing the formation of dental caries. Japan already has a corresponding product. Treatment of intestinal bacterial infections: For example, RG Tannic acid (Rhubarb or other plant) used as an ADP enzyme inhibitor is used in combination with other antimicrobi

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