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Definition

noun

(1) A chemical compound from the didydroxy phenols, with a molecular formula of C₆H₄ (OH) ₂.

(2) An analytical reagent for the qualitative determination of ketoses (Seliwanoff's test).

Supplement

Its chemical uses include serving as an intermediate for the synthesis of pharmaceuticals and other organic compounds, and as UV absorber in resins. It is also used in the manufacture of diazo dyes and plasticizers.

Its medical uses are as follows: (1) antiseptic and disinfectant, (2) used in ointments to treat chronic skin diseases such as psoriasis and eczema, (3) used in hay fever and whooping cough, (4) anti-dandruff agent in shampoo (5)used in sunscreen cosmetics, (5) treatment for gastric ulcers.

In large doses it may be poisonous causing giddiness, deafness, salivation, sweating and convulsions.

Synonym: Benzene-1,3-diol (IUPAC name), resorcin, m-dihydroxybenzene; 1,3-benzenediol; 1,3-Dihydroxybenzene; 3-Hydroxyphenol.
See also: 5-Methylresorcinol.