请输入您要查询的英文单词:

 

单词 heliotropin
释义

heliotropinn.

/hiːlɪəʊˈtrəʊpɪn/
Forms: Also heliotropine.
Etymology: < heliotrop- (in heliotrope n. 1): see -in suffix1.
Chemistry.
A colourless crystalline compound, C8H6O3, present in the heliotrope and other plants, that has a strong smell of heliotropes and is made synthetically for use in perfumes. Also called piperonal.
ΘΚΠ
the world > physical sensation > smell and odour > fragrance > [noun] > fragrant substance or perfume > other substances used for
essence of mirbane1857
heliotropin1881
linalool1891
ionone1893
note1905
isolate1923
hydroxycitronellal1929
rush1977
1881 Chemist & Druggist 15 Sept. 396/2 (heading) Heliotropine... Messrs. Schimmel & Co., of Leipsic, now prepare pure heliotropine in crystals... The heliotropine prepared by them is..suitable for preparing perfumes.
1943 Thorpe's Dict. Appl. Chem. (ed. 4) VI. 191/1 Most of the artificial heliotrope perfumes contain modifiers of the geraniol type, the basic ingredients being heliotropin, with a little vanillin, coumarin and dimethylhydroquinone.
1963 New Scientist 4 Apr. 30/3 Two Japanese scientists have produced..aromas for cosmetics and foodstuffs similar to the heliotropin..obtained by chemical synthesis.
This entry has not yet been fully updated (first published 1976; most recently modified version published online December 2020).
<
n.1881
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/1/31 1:31:48