| 释义 |
catechol
cat·e·chol C0159800 (kăt′ĭ-kôl′, -kŏl′, -kōl′)n.1. See pyrocatechol.2. See catechin.
[catech(u) + -ol.]catechol (ˈkætɪˌtʃɒl; -ˌkɒl) n1. (Elements & Compounds) a colourless crystalline phenol found in resins and lignins; 1,2-dihydroxybenzene. It is used as a photographic developer. Formula: C6H4(OH)2. Also called: pyrocatechol 2. (Photography) a colourless crystalline phenol found in resins and lignins; 1,2-dihydroxybenzene. It is used as a photographic developer. Formula: C6H4(OH)2. Also called: pyrocatechol [C20: from catechu + -ol1]cat•e•chol (ˈkæt ɪˌkɔl, -ˌkɒl)
n. a colorless, crystalline derivative of benzene, C6H6O2, used chiefly in photography, for dyeing, and as a reagent. Also called pyrocatechol. [1875–80; catech (u) + -ol1] catechol
catechol[′kad·ə‚kȯl] (organic chemistry) One of a group of three isomeric dihydroxy benzenes in which the two hydroxyl groups are ortho to each other. Also known as catechin; pyrocatechol; pyrocatechuic acid. catechol
cat·e·chol (kat'ĕ-kol), 1. Synonym(s): pyrocatechol2. Term loosely used for catechin, which contains an o-catechol moiety, and as the root of catecholamines, which are pyrocatechol derivatives. catechol a phenol containing a benzene ring with adjacent hydroxyl groups. see CATECHOLAMINE. |