Pyrocatechol

Pyrocatechol (pyrocatechol, syn. o-dioxybenzene, 1,2-dioxy-4-benzene) - organic compound, pyrocatechol aldehyde, colorless crystals, melting point 165 °C, boiling point 306 °C. It darkens when stored in air. It dissolves well in water, alcohol, chloroform, benzene, and ether. Slightly soluble in acetic acid.
Pyrocatechol is an aromatic compound from the class of phenols. It has two hydroxyl groups and is called pyrocatechol because of its chemical structure, which includes a benzene ring with two oxidized carbon atoms (carboxyl groups). The chemical name of pyrocatechol is 1,2-dihydroxybenzene.

Pyrocatechol was first obtained in 1810 by the French chemist Benoit Munson, who named it pyrogallol. In 1825, the German chemist Ferdinand Reich discovered that pyrogallol is a derivative of benzene and discovered its structure. Since then, catechol has become widely used as an intermediate in the synthesis of dyes and drugs.