单词 | imperatorin |
释义 | imperatorinn. Chemistry. A crystalline compound having a tricyclic molecule containing fused coumarin and furan rings, originally isolated from masterwort, Imperatoria ostruthium, and also occurring in other plants.Formula C16H14O4. ΘΚΠ the world > matter > chemistry > organic chemistry > neutral substances from plants > [noun] ulmic acid1831 pectin1833 peucedanin1836 imperatorin1838 humin1844 sycoretin1860 templin-oil1868 vanillin1868 phytosterin1881 carrageenin- 1838 T. Thomson Chem. Org. Bodies 820 Wackenroder, who examined it particularly, distinguished it by the name of imperatrin. 1876 Proc. Amer. Pharmaceut. Assoc. 23 453 V. Gorup-Besanez endeavored to obtain imperatorin (or peucedanin..) from the recent root of Imperatoris ostruthium (Masterwort). 1909 H. A. Hare et al. National Standard Dispensatory (ed. 2) 1661 The drug contains crystalline ostruthin and imperatorin. 1981 Oecologia 49 236/1 Xanthotoxin, imperatorin and bergapten (linear furanocoumarins) occur in all above-ground parts of the plant. 2008 Proc. National Acad. Sci. U.S.A. 105 4548/1 Concomitant with the rise in webworm infestation.., levels of all five furanocoumarins (those previously associated with resistance as well as imperatorin and isopimpinellin) increased significantly [in wild parsnip plants]. This entry has been updated (OED Third Edition, June 2019; most recently modified version published online March 2022). < |
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。