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Tannic Acid(Pharmaceutical Grade)    CAS:    1401-55-4    Spc.:    BP/AP    "Appearance: light yellow to light brown powder,Quality index: BP 1993, AP1995 .
Uses: pharmaceutical tannic acid, used for antimicrobial, treat tinea, detoxify, stop dysenterys, lso used in the synthesis of sulfonamide synergist
Storage: Moistureproof and avoid light, sealed storage
Packing: plastic bag lined carton, Net wt 25kg
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Tannic Acid(Tech Grade)    CAS:    1401-55-4    Spc.:    the national standard of GB5308-85.    "Appearance: light yellow or light brown amorphous powder;
Quality index: in accordance with the national standard of GB5308-85.
Uses: material for making Tannic acid, Pyrogallic Acid and sulfa drugs . In the chemical production, it can produceGallic acid and Pyrogallic acid); as mud treatment agent in petroleum industry. In addition, can be used in the production of leather tanning agent, mordant, rubber curing agent, agent of proteins, alkaloids precipitation agent, mineral inhibitor, wine clarifying agent, the extraction of germanium and the configuration of the blue-black ink, etc
Storage: Moistureproof and avoid light, sealed storage
Packing: kraft bag, Net wt 25kg
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Tannic Acid(Dyes Grade)     CAS:    1401-55-4    Spc.:    the national standard of GB5308-85    "Appearance: light yellow to light brown powder,
Quality index: in accordance with the national standard of GB5308-85.
Uses: As a fixing agent in textile printing and dyeing, mordant, fiber sweetening agent and synthetic dyes.
Storage: Moistureproof and avoid light, sealed storage                             
Packing: plastic bag lined carton, Net wt 25kg"
Tannic Acid(Food Grade)    CAS:    1401-55-4    Spc.:    FDA “Food chemistry specification”3, FCC (1981); FCC-IV    "Appearance: light yellow to light brown powder,
Quality index: FDA “Food chemistry specification”3, FCC (1981); FCC-IV.
Uses: Mainly used as the clarifying agent of beer, wine, low-alcohol wine, can also be used for pineapple proteinase and food processing, etc.
Storage: Moistureproof and avoid light, sealed storage
Packing: plastic bag lined cardboard round drum, Net wt 25kg."

Guangzhou Topwork Chemical Co., Ltd., which is the biggest leading enterprise in China regarding the depth processing of Chinese gallnuts.
Our company 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),Ethyl gallate, Progyl Gallate, n-Octyl gallate,3,4,5-Trimethoxybenzaldehyde,Methyl 3,4,5-trimethoxybenzoate and so on.