| post date: | dec 02,2021 |
| expiry date: | dec 02,2022 |
| detailed description: |
cas no. :1401-55-4
specs:bp/ap,gb5308-85,fcc (1981); fcc-iv payment method: t/t tannic acid for industrial use production capacity: 1200 t/year other name: tannin; chinese gall tannic acid. mol. form and mol. wt.： c76h52o46 1701.18 description: from light yellow to light brown powder, the color will be deeping when discovered in the air; no bad smell; acerb taste; soluble in water, alcohol, acetone and ethyl acetate. specification: comply strictly with china national standard of gb5308-85. technical data: purity % ≥ 81 loss on drying % ≤9 insoluble in water % ≤0.6 total color ≤2.0 usage: main material of gallic acid, , sulfanilamide medicine; extract gallic acid and pyrogallol in chemical industry. mud treater in petroleum drilling; furthermore, it can be used in the production of tan-reagent of leather, polygenetic dye, rubber concretion, albumen reagent, alkaloid precipitator, mill run inhibitor,wine-clarifier, the germanium extraction, ink confect and so on storage: keep in airtight containers. packing: weave bag with plastic bag inside; n.w. 25kg/bag. guangzhou topwork chemical co.,ltd. also has the capability in producing chinese gallnut raw materials, which are widely used in medical, chemical, food, printing & dyeing, astronavigation and national defense and micro-electronics areas, also the final goods usually exported to the us, japan, eu and the southeast asia etc. our strong products are:tannic acid(pharmaceutical/tech/dyes/food grade),gallic acid(3,4,5-trihydroxybenzoic acid),pyrogallic acid(1,2,3-benzenetriol) and so on. |
| cas registry number: | 1401-55-4 |
| synonyms: | ;chinese tannin;gallotannic acid;gallotannin;galloylglucose;glycerite;penta nm digalloyl glucose;quebracho;tannins;1,3,6-tris-o-(3,4,5-trihydroxybenzoyl)hexopyranose;1,2,3,4,6-pentakis-o-[(3,4-dihydroxy-5-{[(3,4,5-trihydroxyphenyl)carbonyl]oxy}phenyl)carbonyl]hexopyranose; |
| molecular formula: | c76h52o46 |
| molecular weight: | 1701.1985 |
| molecular structure: | 
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| safety description: | s24/25:; |
