The oxidationproducts of a number of 4- and 5-monosubstituted and 4,6-disubstituted pyrogallols are discussed. 4-Alkylpyrogallols yield the corresponding 4′,7-dialkylpurpurogallins and the structures of the products resulting from the further oxidation of these compounds with alkaline hydrogen peroxide are elucidated. Oxidation of 5-mono and 4,6-dialkylpyrogallol derivatives yield characteristic white