| 释义 |
stilbene
stil·bene S0757900 (stĭl′bēn′)n. Either of two geometric isomers of ethene substituted with two phenyl groups, C14H12. The trans-isomer is a colorless crystalline solid used in the manufacture of dyes and optical bleaches and as a phosphor.
[Greek stilbos, shining (from stilbein, to shimmer) + -ene.]stilbene (ˈstɪlbiːn) n (Elements & Compounds) a colourless or slightly yellow crystalline water-insoluble unsaturated hydrocarbon used in the manufacture of dyes; trans-1,2-diphenylethene. Formula: C6H5CH:CHC6H5[C19: from Greek stilbos glittering + -ene]stil•bene (ˈstɪl bin)
n. a colorless to slightly yellow, crystalline, water-insoluble solid, C14H12, used chiefly in the manufacture of dyes. [1865–70; < Greek stílb(ein) to shine + -ene] TranslationsStilbene
stilbene[′stil‚bēn] (organic chemistry) C6H5CH:CHC6H5 Colorless crystals soluble in ether and benzene, insoluble in water; melts at 124°C; used to make dyes and bleaches and as phosphors. Also known as diphenylethylene; toluylene. Stilbene an aliphatic-aromatic hydrocarbon; the trans form of 1,2-diphenylethylene (C6H5—CH═CH—C6H5; the cis form is known as isostilbene). Stilbene is obtained as colorless crystals that are readily soluble in regular organic solvents but insoluble in water. The melting point is 124°C, and the boiling point 306°-307°C. Stilbene crystals are used in scintillation counters, and certain stilbene derivatives are used as pharmaceuticals, for example, diethylstilbesterol, and as optical bleaches and azo dyes. stilbene
stil·bene (stil'bēn), 1. an unsaturated hydrocarbon, the nucleus of stilbestrol and other synthetic estrogenic compounds. 2. A class of compounds based on stilbene (1). stil·bene (stil'bēn) 1. An unsaturated hydrocarbon, the nucleus of stilbestrol and other synthetic estrogenic compounds. 2. A class of compounds based on stilbene (1). |