Name： Propyl Gallate CAS:121-79-9 Chemical Name: Propyl 3,4,5-trihydroxybenzoate Structural formula： Molecular formula & Molecular weight：C10H12O5；212.21 Propyl Gallate Appearance: white to milky white crystalline granules Quality index: in accordance with the national standard GB3263-82 , UP 2000, AP26, Chemical reagent standard, FCC-IV. Uses: Used in fat, greasy food and pharmaceutical preparations as anti-oxidant additive. Storage: sealed container, in dark place, no contact with metals. Packing: plastic bag lined cardboard round drum, Net wt 25kg. Purity: % 98-102 Melting point: ℃ 146--150 As: % ≤0.0003 Heavy metal: % ≤0.001 Loss on drying: % ≤0.5 Residue on ignition: % ≤ 0.1 Colour number: fan ≤50 Guangzhou Topwork Chemical Co., Ltd, is the biggest leading enterprise in China,we specialize in the depth processing of Chinese gallnuts. Our Chinese gallnut raw materials 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. We have gained certificates of ISO9001-2000, HACCP, HALAL, FAMI-QS and KOSHER and carried out the pre-registration of REACH. It also got the Chinese production lisences of Food Additives and Feed Additives. Our strong products are:Tannic Acid(Pharmaceutical/Tech/Dyes/Food Grade),Gallic acid（3,4,5-Trihydroxybenzoic acid),Pyrogallol(1,2,3-Benzenetriol),Ethyl gallate, Progyl Gallate, n-Octyl gallate,3,4,5-Trimethoxybenzaldehyde,Methyl 3,4,5-trimethoxybenzoate and so on.