Pyrogallol is used in hair dying and suturing materials dying. It is used as a developing agent in black and white developers, as a metal-complexing agent and is involved in oxygen absorption in gas analysis. It exhibits antiseptic properties. Its alkaline solution is used to absorb oxygen from air, thereby it plays a vital role to calculate the amount of oxygen in air.
Can, M.; Bulut, E.; Ozacar, M. Reduction of palladium onto pyrogallol-derived nano-resin and its mechanism. Chem. Eng. J. 2015, 275, 322-330.
Guralnik, V.; Avram, L.; Cohen, Y. Unique Organization of Solvent Molecules Within the Hexameric Capsules of Pyrogallol  arene in Solution. Org. Lett. 2014, 16 (21), 5592-5595.
Hazard Statements: H302-H312-H332-H341
Harmful if swallowed. Harmful in contact with skin. Harmful if inhaled. Suspected of causing genetic defects.
Precautionary Statements: P201-P261-P280-P304+P340-P405-P501a
Obtain special instructions before use. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.