... , pet food, cosmetics. Propyl Gallate Food Grade (E310) 99% Synonyms:Propyl gallate, propyl ester of gallic acid, n-propyl ester of 3,4 ... ,5-trihydroxybenzoic acid, propyl 3,4,5- ... -mentioned conditions and in unopened container. 100kg Propyl Gallate Food Grade 99%, N Propyl Gallate, PG, CAS 121-79-9, ...