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pyrogallol Line breaks: pyro|gal¦lol
Pronunciation: /ˌpʌɪrə(ʊ)ˈɡalɒl/

Definition of pyrogallol in English:


[mass noun] Chemistry
A weakly acid crystalline compound chiefly used as a developer in photography. Also called pyrogallic acid.
  • Alternative name: 1,3,5-trihydroxybenzene; chemical formula: C6H3(OH)3
Example sentences
  • Catechol and pyrogallol may be substituted for hydroquinone, but are not as suitable.
  • Because of the tanning effect of catechol on emulsion gelatine, it has many of the properties of pyrogallol.
  • One unit of activity was determined as the amount of enzyme that inhibited the oxidation of pyrogallol by 50%.
Definition of pyrogallol in:
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