ZUNYI CITY BEI YUAN CHEMICAL CO., LTD
Gallic acid
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Pyrogallol
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Ultraviolet absorbent UV-1
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Pyrogallic Acid
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N-(Ethoxycarbonylphenyl)-N'-Methyl-N'-Phenylformamidine
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Tannic acid
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Propyl gallate
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1,3-Dimethoxy benzene
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2,3,4-Trimethoxybenzaldehyde
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