Gallic acid is a trihydroxybenzoic acid, a type of phenolic acid, a type of organic acid, also known as 3,4,5-trihydroxybenzoic acid, found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plants
G 1225 (OTTO) Gallic acid, 98% Cas 5995-86-8 - used in the pharmaceutical industry. G 1225 (OTTO) Gallic acid, 98% Cas 5995-86-8 - used as a standard for determining the phenol content of various analytes by the Folin-Ciocalteau assay; results are reported in gallic acid equivalents.