C6H4OH2
Hydroquinone Hy`dro*qui"none, n. [Hydro-, 2 + quinone.] (Chem.) A white crystalline substance, {C6H4(OH)2}, obtained by the reduction of quinone. It is a diacid phenol, resembling, and metameric with, pyrocatechin and resorcin. Called also {dihydroxy benzene}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • C6H4OH2 — Oxyphenol Ox y*phe nol, n. (Chem.) A phenol, {C6H4(OH)2}, produced by the distillation of catechin; called also {oxyphenic acid}, and now {pyrocatechin}. [1913 Webster] …   The Collaborative International Dictionary of English

  • C6H4OH2 — Pyrocatechin Pyr o*cat e*chin, n. [Pyro + catechu.] (Chem.) A white crystalline substance, {C6H4(OH)2}, of the phenol series, found in various plants; so called because first obtained by distillation of gum catechu. Called also {catechol},… …   The Collaborative International Dictionary of English

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