... .R. Grade 99.8% Synonyms:Pyrogallic Acid; 1,2,3-Trihydroxybenzene; 1,2,3-BenzenetriolMolecular Formula:C6H3(OH)3CAS#87-66-1EINECS ... is used in hair dying, dying of suturing materials and for oxygen absorption in gas analysis, photo developing agent, ... , pesticide (Bendiocarb), insecticide, heat sensitizer and polymerization inhibitor.Packing:In fiber drum with light resistant inner bag , 25kg net each ...