n. 儿茶酚, 苯邻二酚

[化] 儿茶酚

[医] 儿茶酚(焦儿茶酚,邻苯二酚,儿茶酚b)

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}, {oxyphenol}. etc.


catechol \cat"e*chol\ (k[a^]t"[e^]*k[add]l`), n. [.]
any of a group of chemicals having a benzene ring substituted
with two hydroxyl groups in ortho position, especially
ortho-dihydroxybenzene itself ({C6H6O2}), also called
{pyrocatechol}, used in photography and as a reagent.
[PJC]