Product name:Pyrogallol
CAS:87-66-1
Molecular Formula:C6H6O3
Formula Weight:126.11
Specification:100G
Description:
Pyrogallol or benzene-1,2,3-triol is a benzenetriol. It is a white crystalline powder and a powerful reducing agent. It was first prepared by Scheele 1786 by heating gallic acid. An alternate preparation is heating para-chlorophenoldisulphonic acid with potassium hydroxide.
One can find its uses in hair dying, dying of suturing materials and for oxygen absorption in gas analysis. It also has antiseptic properties. Pyrogallol was also used as a developing agent in black-and-white developers, but its use is largely historical except for special purpose applications. (Hydroquinone is more commonly used today.)
Harmful if swallowed and repeated or prolonged exposure to this compound is not recommended. Pyrogallol is not likely to be used as a modern hair dye due to the suspected toxicity of the compound.