China Pharmaceutical Grade Natural Gallnut Extract Gallic Acid CAS 149-91-7, Find details about China Gallic Acid, Gallnut Extract from Pharmaceutical Grade Natural Gallnut Extract Gallic Acid CAS 149-91-7
Basic information
Gallic acid is a trihydroxybenzoic acid found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants.
Gallic acid is found both free and as part of hydrolyzable tannins. The gallic acid groups are usually bonded to form dimers such as ellagic acid. Hydrolyzable tannins break down on hydrolysis to give gallic acid and glucose or ellagic acid and glucose, known as gallotannins and ellagitannins respectively.
Specification
ANALYSIS | SPECIFICATION |
Appearance | white powder |
Odor Tannic acid test Water dissolved experiment Assay(gallic acid content dry basis) Loss on Drying | Characteristic No cloudy No cloudy >99% <10%
|
Heavy Metal
| <10ppm |
Application
1. Applied in food filed, gallic acid can be produced into wine, canned, condensed juice and other more nourishment;
2. Applied in the cosmetic industry, gallic acid used as active ingredients of skin care products;
3. Widely applied in pharmaceutical grade
4. Applied in dyes, chemicals, and organic synthesis, as well as in the analysis of rare metals.